[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What guidance does Cybersecurity Supply Chain Risk Management Practices for Systems and Organizations provide?

[Assistant]
<!-- image -->

## NIST Special Publication 800

## NIST SP 800-161r1-upd1

## Cybersecurity Supply Chain Risk Management Practices for Systems and Organizations

Jon Boyens Angela Smith Nadya Bartol Kris Winkler Alex Holbrook Matthew Fallon

This publication is available free of charge from: https://doi.org/10.6028/NIST.SP.800-161r1-upd1

<!-- image -->

## NIST Special Publication 800 NIST SP 800-161r1-upd1

## Cybersecurity Supply Chain Risk Management Practices for Systems and Organizations

Jon Boyens Angela Smith Computer Security Division Information Technology Laboratory

Nadya Bartol Kris Winkler Alex Holbrook Matthew Fallon Boston Consulting Group

This publication is available free of charge from: https://doi.org/10.6028/NIST.SP.800-161r1-upd1

May 2022

INCLUDES UPDATES AS OF 1 1 -01 -2024; SEE APPENDIX K

<!-- image -->

U.S. Department of Commerce Gina M. Raimondo, Secretary

National Institute of Standards and Technology

Laurie E. Locascio, NIST Director and Under Secretary of Commerce for Standards and Technology

Certain equipment, instruments, software, or materials, commercial or non-commercial, are identified in this paper in order to specify the experimental procedure adequately. Such identification does not imply recommendation or endorsement of any product or service by NIST, nor does it imply that the materials or equipment identified are necessarily the best available for the purpose. There may be references in this publication to other publications currently under development by NIST in accordance with its assigned statutory responsibilities. The information in this publication, including concepts and methodologies, may be used by federal agencies even before the completion of such companion publications. Thus, until each publication is completed, current requirements, guidelines, and procedures, where they exist, remain operative.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Risk Management Framework for Information Systems and Organizations_ A System Life Cycle Approach for Security and Privacy provide? (Part 6)

[Assistant]
curity officer; senior agency official for privacy; supply chain risk management; system development life cycle; system owner; system privacy officer; system security officer; system-specific control.
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

## Acknowledgements

This publication was developed by the Joint Task Force Interagency Working Group. The group includes representatives from the Civil, Defense, and Intelligence Communities. The National Institute of Standards and Technology wishes to acknowledge and thank the senior leaders from the Departments of Commerce and Defense, the Office of the Director of National Intelligence, the Committee on National Security Systems, and the members of the interagency working group whose dedicated efforts contributed significantly to the publication. ## Department of Defense

## Office of the Director of National Intelligence

John Sherman

Dana Deasy

Chief Information Officer

Chief Information Officer

Essye B. Miller

Vacant

Principal Deputy CIO and DoD Senior Information Security Officer

Deputy Chief Information Officer

Thomas P. Michelli

Susan Dorr

Acting Deputy Chief Information Officer for Cybersecurity

Director, Cybersecurity Division and Chief Information Security Officer

Vicki Michetti

Wallace Coggins

Director, Cybersecurity Policy, Strategy, International, and Defense Industrial Base Directorate

Director, Security Coordination Center

## National Institute of Standards and Technology

## Committee on National Security Systems

Charles H.

Risk Management Framework for Information Systems and Organizations_ A System Life Cycle Approach for Security and Privacy

Risk Assessment
Maintenance
Access Control
System and Communications Protection
System and Information Integrity
Incident Response
Physical Protection
Identification and Authentication
Planning
System and Services Acquisition
Media Protection
Awareness and Training
Audit and Accountability
Supply Chain Risk Management
Configuration Management
Personnel Security
Security Assessment


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for Configuration Management?

[Assistant]
According to Security and Privacy Controls for Information Systems and Organizations:

organizations. It provides  guidance  for
tailoring  control  baselines  and  for  developing  overlays  to  support  the  security  and  privacy
requirements of stakeholders and their organizations.
CNSS Instruction 1253 provides control
baselines  and  guidance  for  security  categorization  and  security  control  selection  for  national
security systems.

Security and Privacy Controls for Information Systems and Organizations


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for Risk Assessment?

[Assistant]
According to Summary of NIST SP 800-53, Revision 4_ Security and Privacy Controls for Federal Information Systems and Organizations:

ne or more information systems. If an information system inherits a common control, such as environmental controls within a data center, that system does not need to explicitly implement that control.
- Applying scoping considerations - these, when applied in conjunction with risk management guidance, can eliminate unnecessary security controls from the initial security control baselines and help ensure that organizations select only those controls needed to provide the appropriate level of protection for information systems. When scoping considerations are applied, compensating controls may need to be selected to provide alternative means to achieve security requirements. - Supplementing baselines - additional security controls and control enhancements are selected if needed to address specific threats and vulnerabilities.

Summary of NIST SP 800-53, Revision 4_ Security and Privacy Controls for Federal Information Systems and Organizations


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Summary of NIST SP 800-53, Revision 4_ Security and Privacy Controls for Federal Information Systems and Organizations provide? (Part 12)

[Assistant]
8 (also known as the Common Criteria) provides functionality and assurance requirements for developers of information systems and information system components (i.e., information technology products).
Since many of the technical security controls defined in Appendix F are implemented in hardware, software, and firmware components of information systems, organizations can obtain significant benefit from the acquisition and employment of information technology products evaluated against the requirements of ISO/IEC 15408. The use of such products can provide evidence that certain security controls are implemented correctly, operating as intended, and producing the desired effect in satisfying stated security requirements. ## 8 Overlays

To help ensure that selected and implemented controls are sufficient to adequately mitigate risks to organizational operations and assets, SP 800-53 Rev. 4 introduces the concept of overlays. An overlay provides a set of security controls, control enhancements, and supplemental guidance for community-wide use or to address specialized requirements, technologies, or unique missions and environments of operation. For example, the federal government may decide to establish a government-wide set of security controls and implementation guidance for public key infrastructure (PKI) systems that could be uniformly applied to information systems. Multiple overlays can be applied to a single security control baseline. The tailored baselines that result from the overlay development process may be more or less stringent than the original security control baselines. Risk assessments provide information necessary to determine if the risk from implementing the tailored baselines falls within the risk tolerance of the organizations or communities of interest developing the overlays. General guidance on overlays is provided in section 3.3 and an overlay template is provided in Appendix I.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for System and Services Acquisition?

[Assistant]
According to Summary of NIST SP 800-53, Revision 4_ Security and Privacy Controls for Federal Information Systems and Organizations:

The NIST Risk Management Framework (RMF), described in NIST Special Publication 800-37 Revision 1, Guide for Applying the Risk Management Framework to Federal Information Systems: a Security Life Cycle Approach, is a methodology for implementing risk management at the information systems tier. The RMF (depicted in Figure 2) identifies six distinct steps that provide a disciplined and structured process to integrate information security risk management activities into the system development life cycle. The RMF addresses security concerns of organizations related to the design, development, implementation, operation, and disposal of information systems and the environments in which those systems operate. The criteria for whether a security control is assurance- or functionality-related is based on the overall characteristics of the control. In general, assurance-related controls are controls that: (i) define processes, procedures, techniques, or methodologies for designing and developing information systems and system components; (ii) provide supporting operational processes including improving the quality of systems, components, or processes; (iii) produce security evidence from developmental or operational activities; (iv) determine security control effectiveness or risk; or (v) improve personnel skills, expertise, and understanding. Many organizations use well-known international information security standards as the basis or as a supplemental source of security controls for risk management. To aid in selection and comparison, SP 800-53 Rev. 4 provides mapping tables to provide organizations with a general indication of security control coverage with respect to ISO/IEC 27001, Information technologySecurity techniques-Information security management systems-Requirements and ISO/IEC 15408, Information technology -- Security techniques -- Evaluation criteria for IT security .


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Summary of NIST SP 800-53, Revision 4_ Security and Privacy Controls for Federal Information Systems and Organizations provide? (Part 13)

[Assistant]
n the risk tolerance of the organizations or communities of interest developing the overlays. General guidance on overlays is provided in section 3.3 and an overlay template is provided in Appendix I.
The template is included as an example only-organizations may choose to use other formats or modify the format in this appendix based on organizational needs and the type of overlay being developed. The level of detail included in the overlay is at the discretion of the organization initiating the overlay but should be of sufficient breadth and depth to provide an appropriate rationale and justification for the resulting tailored baseline developed, including any risk-based decisions made during the overlay development process. The sample overlay template consists of eight sections:

- Identification;
- Overlay Characteristics;
- Applicability;
- Overlay Summary;
- Detailed Overlay Control Specifications;
- Tailoring Considerations;
- Definitions; and
- Additional Information or Instructions. ## 9 Privacy

Federal agencies are required to ensure that privacy protections are incorporated into information security planning. To that end, SP 800-53 Rev. 4 features eight new families of privacy controls that are based on the internationally accepted Fair Information Practice Principles (FIPPs). The proliferation of social media, Smart Grid, mobile, and cloud computing, as well as the transition from structured to unstructured data and metadata environments, have added significant complexities and challenges for federal organizations in safeguarding privacy. These challenges extend well beyond the traditional information technology security view of protecting privacy, which focused primarily on ensuring confidentiality. The families of controls are described in a similar manner to those of Appendix F (Security Controls) and Appendix G (Information Security Programs Organization-Wide Information Security Program Management Controls). SP 800-53 Rev.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Protecting Controlled Unclassified Information (CUI)_ NIST Special Publication 800-171, Revision 3. Small Business Primer provide? (Part 6)

[Assistant]
ents in SP 800-171. If you have questions regarding requirements to protect CUI or other regulatory requirements, please contact your prime contractor and/or federal point of contact for the contract.
|
|----------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| How do I know if I have CUI? | It is the responsibility of the federal agency to ensure that requirements to protect CUI are identified in applicable contracts or agreements, and CUI is marked by the federal agency. |
| How do I get a 'NIST SP 800 -171 Assessment'? | The term 'NIST Assessment' and 'NIST SP 800 - 171 Assessment' is frequently used to describe the Department of Defense (DOD) proce ss used to complete its NIST SP 800-171 Assessment Module through the Supplier Performance Risk System (SPRS). NIST develops the underlying technical guidelines (SP 800-171, SP 800-171A, SP 800-172, and SP 800- 172A) on which the 'NIST Assessment' is based, but NIST does not have a role in DOD's implementation of its programs . For additional guidance on NIST's methodology to plan, prepare for, and conduct security requirement assessments, refer to SP 800-171A. |
| What products, vendors, or solutions are 'NIST SP 800 -171 compliant' or 'CMMC - certified'? | NIST does not identify or track implementation of or compliance with the security requirements.

Protecting Controlled Unclassified Information (CUI)_ NIST Special Publication 800-171, Revision 3. Small Business Primer


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What is CMMC practice AT.L2-3.2.1 (NIST 3.2.1)?

[Assistant]
According to Assessing Security and Privacy Controls in Information Systems and Organizations:

3.2.1   DETERMINE WHICH SECURITY AND PRIVACY CONTROLS ARE TO BE ASSESSED

The security plan and privacy plan provide an overview of the security and privacy requirements
for the system and organization and describe the security controls and privacy controls in place
or planned for meeting those requirements.

Assessing Security and Privacy Controls in Information Systems and Organizations


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Enhanced Security Requirements for Protecting Controlled Unclassified Information_ A Supplement to NIST Special Publication 800-171 provide? (Part 10)

[Assistant]
| ..................................................................................................................
4                             |
| 1.3 ORGANIZATIONOF THIS SPECIAL PUBLICATION                                                                                | .......................................................................... 4                                                                     |
| CHAPTERTWO THE FUNDAMENTALS............................................................................................ 5                        | CHAPTERTWO THE FUNDAMENTALS............................................................................................ 5                        |
| 2.1 DEVELOPMENTAPPROACH ...................................................................................................... | 5                                                                                |
| 2.2 ORGANIZATIONANDSTRUCTURE                                                                                | ............................................................................................. 7                                                  |
| 2.3 FLEXIBLE APPLICATION                                                                                | ............................................................................................................. 9                                  |
| CHAPTER THREE THE REQUIREMENTS......................................................................................... 11                       | CHAPTER THREE THE REQUIREMENTS.........................................................................................

Enhanced Security Requirements for Protecting Controlled Unclassified Information_ A Supplement to NIST Special Publication 800-171


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Cybersecurity Supply Chain Risk Management Practices for Systems and Organizations provide? (Part 11)

[Assistant]
......................................................136                              |                                                                                |
| A.2.20.
FAMILY: SYSTEM AND COMMUNICATIONS PROTECTION .....................................................147                                         |                                                                                |
| A.2.21. FAMILY: SYSTEM AND INFORMATION INTEGRITY .................................................................153                                 |                                                                                |
| A.2.22. FAMILY: SUPPLY CHAIN RISK MANAGEMENT........................................................................157                               |                                                                                |
| B. C-SCRM Control Summary............................................................................................ | 164                                                                                |
| Appendix Appendix C. RISK EXPOSURE                                                                                | FRAMEWORK...................................................................................... 172 |
| C.1.1. SCENARIO 1: Influence or Control by Foreign Governments Over Suppliers...........................177                                           |                                                                                |

| C.1.2.

Cybersecurity Supply Chain Risk Management Practices for Systems and Organizations


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for Access Control?

[Assistant]
According to Assessing Security and Privacy Controls in Information Systems and Organizations:

gs and relationships between the security standards and guidelines developed by NIST, the
International Organization for Standardization (ISO), and the International Electrotechnical Commission
(IEC).
Identify determination statements for organization-defined parameters (ODPs) first and separately
from the determination statements for each control item;
Improve the readability of the assessment procedures;
Provide a structured schema for automated tools when assessment information is imported into such
tools;
Provide greater flexibility in conducting assessments by giving organizations the capability to target
certain aspects of controls (highlighting the particular weaknesses and/or deficiencies in controls),
Improve the efficiency of security and privacy control assessments;
Support continuous monitoring and ongoing authorization programs by providing a greater number
of component parts of security and privacy controls that can be assessed at organization-defined
frequencies and degrees of rigor.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Protecting Controlled Unclassified Information (CUI)_ NIST Special Publication 800-171, Revision 3. Small Business Primer provide? (Part 10)

[Assistant]
and specificity needed by organizations to clearly define their CUI security requirements, given the diverse nature of their missions, business functions, operational environments, and risk tolerance.
ODPs support consistent security assessments in determining whether security requirements have been satisfied. If a federal agency or a consortium of agencies do not specify a particular value or range of values for an ODP, nonfederal organizations must assign the value or values to complete the security requirement. Tailoring: The process by which control baselines are modified to achieve certain organizational goals and objectives. Definitions provided are intended as plain language. Review the NIST Glossary for official NIST definitions. Determine if your business has CUI. ## General Tips for Getting Started with NIST SP 800-171

Everyone will have different approaches to getting started, but here are a few tips to get you started down the right path:

Understand current (or future) legal, regulatory, or contractual requirements for protecting CUI. The federal agency is responsible for communicating what CUI the business is responsible for protecting as part of the contractual arrangement. If there are questions, reach out to the contracting officer. The business may also have additional compliance requirements beyond SP 800-171. If so, an initial task might be to understand where the requirements overlap and where they differ. With that information, the business can begin addressing requirements that meet multiple compliance requirements. Understand how CUI flows into, within, and out of the business. <!-- image -->

Inventorying what systems or components the business has, and how the data flows into, within, and out of those systems or components, helps practitioners understand the scope of applicability of SP 800-171 security requirements to business systems. <!-- image -->

Scope and Applicability of SP 800-171.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Enhanced Security Requirements for Protecting Controlled Unclassified Information_ A Supplement to NIST Special Publication 800-171 provide? (Part 5)

[Assistant]
quirements in NIST Special Publication 800-171 and are intended for use by federal agencies in contractual vehicles or other agreements established between those agencies and nonfederal organizations.
## Keywords

Advanced Persistent Threat; Basic Security Requirement; Contractor Systems; Controlled Unclassified Information; CUI Registry; Derived Security Requirement; Enhanced Security Requirement; Executive Order 13556; FIPS Publication 199; FIPS Publication 200; FISMA; NIST Special Publication 800-53; Nonfederal Organizations; Nonfederal Systems; Security Assessment; Security Control; Security Requirement. \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

## Acknowledgements

The authors also wish to recognize the scientists, engineers, and research staff from the NIST Computer Security and the Applied Cybersecurity Divisions for their exceptional contributions in helping to improve the content of the publication. A special note of thanks to Pat O'Reilly, Jim Foti, Jeff Brewer, Chris Enloe, Ned Goren, and the entire NIST web team for their outstanding administrative support. Finally, the authors also gratefully acknowledge the contributions from individuals and organizations in the public and private sectors, nationally and internationally, whose thoughtful and constructive comments improved the overall quality, thoroughness, and usefulness of this publication. \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

## Patent Disclosure Notice

NOTICE: The Information Technology Laboratory (ITL) has requested that holders of patent claims whose use may be required for compliance with the guidance or requirements of this publication disclose such patent claims to ITL.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for Security Assessment?

[Assistant]
According to Cybersecurity Supply Chain Risk Management Practices for Systems and Organizations:

uirements. When deciding whether to require and implement C-SCRM practices and controls, acquirers should consider both the costs of implementing these controls and the risks of not implementing them.
applicable existing data and documentation that may provide evidence

|   Levels | Level Name   | Generic Stakeholder                                                                                | Activities                                                                                |
|----------|--------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|        3 | Operational  | Systems Management: Architects, developers, system owners, QA/QC, testing, contracting personnel, C-SCRM PMO staff, control engineer and/or control system operator, etc. | • Develop C-SCRM plans. • Implement C-SCRM policies and requirements. • Adhere to constraints provided by Level 1 and Level 2. • Tailor C-SCRM to the context of the individual system, and apply it throughout the SDLC. • Report on C-SCRM to Level 2. |


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Risk Management Framework for Information Systems and Organizations_ A System Life Cycle Approach for Security and Privacy provide? (Part 8)

[Assistant] Barrett, Kathleen Coupe, Jeff Eisensmith, Chris Enloe, Ned Goren, Matthew Halstead, Jody Jacobs, Ralph Jones, Martin Kihiko, Raquel Leone, and the scientists, engineers, and research staff from the Computer Security Division and the Applied Cybersecurity Division for their exceptional contributions in helping to improve the content of the publication.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for Media Protection?

[Assistant]
According to Summary of NIST SP 800-53, Revision 4_ Security and Privacy Controls for Federal Information Systems and Organizations:

The NIST Risk Management Framework (RMF), described in NIST Special Publication 800-37 Revision 1, Guide for Applying the Risk Management Framework to Federal Information Systems: a Security Life Cycle Approach, is a methodology for implementing risk management at the information systems tier. The RMF (depicted in Figure 2) identifies six distinct steps that provide a disciplined and structured process to integrate information security risk management activities into the system development life cycle. The RMF addresses security concerns of organizations related to the design, development, implementation, operation, and disposal of information systems and the environments in which those systems operate.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC Level 3 require for System and Information Integrity?

[Assistant]
According to Enhanced Security Requirements for Protecting Controlled Unclassified Information_ A Supplement to NIST Special Publication 800-171:

This publication is a supplement to NIST Special Publication 800-171 [SP 800-171]. It contains recommendations  for  enhanced  security  requirements  to  provide  additional  protection  for Controlled Unclassified Information (CUI) in nonfederal systems and organizations when such information is  associated  with critical  programs  or  high  value  assets. The  enhanced  security requirements are designed to respond to the advanced persistent threat (APT) and supplement the basic and derived security requirements in [SP 800-171]. While the security requirements in [SP 800-171] focus primarily on confidentiality protection, the enhanced security requirements in this publication address confidentiality, integrity, and availability protection. The enhanced security requirements are implemented in addition to the basic and derived requirements since those requirements are not designed to address the APT. The enhanced security requirements apply to those components of nonfederal systems that process, store, or transmit CUI or that provide protection for such components. In addition to protecting CUI from unauthorized disclosure, the enhanced security requirements have been designed to protect the integrity and availability of CUI. This is achieved by promoting penetration-resistant architectures, damage-limiting operations, and designs to help achieve cyber resiliency and survivability. | CHAPTERONE INTRODUCTION...................................................................................................... | CHAPTERONE INTRODUCTION......................................................................................................


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for Audit and Accountability?

[Assistant]
According to Assessing Security and Privacy Controls in Information Systems and Organizations:

Security and privacy control assessments are not about checklists, simple pass/fail results, or
generating paperwork to pass inspections or audits. Rather, control assessments are the
principal vehicle used to verify that selected security and privacy controls are implemented and
meeting stated goals and objectives. Special Publication (SP) 800-53A, Assessing Security and
Privacy Controls in Information Systems and Organizations, facilitates security control
assessments and privacy control assessments conducted within an effective risk management
framework. A major design objective for SP 800-53A is to provide an assessment framework and
initial starting point for assessment procedures that are flexible enough to meet the needs of
different organizations while providing consistency in conducting control assessments. Control
assessment results provide organizational officials with:

CHAPTER ONE INTRODUCTION ............................................................................................................... 1
1.1   PURPOSE AND APPLICABILITY .......................................................................................................... 1
1.2   TARGET AUDIENCE ............................................................................................................................ 4
1.3   RELATED PUBLICATIONS AND ASSESSMENT PROCESSES ............................................................... 4
1.4   ORGANIZATION OF THIS PUBLICATION ........................................................................................... 5
CHAPTER TWO THE FUNDAMENTALS ..................................................................................................... 6
2.1   ASSESSMENTS WITHIN THE SYSTEM DEVELOPMENT LIFE CYCLE .................................................. 6
2.2   CONTROL STRUCTURE AND ORGANIZATION ..................................................................................


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for Risk Assessment?

[Assistant]
According to Control Baselines for Information Systems and Organizations:

Organizations must exercise due diligence in managing information security and privacy risk. This is accomplished, in part, by establishing a comprehensive risk management program that uses the flexibility inherent in NIST publications to categorize systems, select and implement security and  privacy  controls  that  meet  mission  and  business  needs,  assess  the  effectiveness  of  the controls, authorize the systems for operation, and continuously monitor the systems. Exercising due diligence and implementing robust and comprehensive information security and privacy risk management programs can facilitate compliance with applicable laws, regulations, executive orders,  and  government-wide  policies. Risk  management  frameworks  and  risk  management processes are essential in developing, implementing, and maintaining the protection measures necessary to address stakeholder needs and the current threats to organizational operations and  assets,  individuals,  other  organizations,  and  the  Nation. Employing  effective  risk-based processes,  procedures,  methods,  and  technologies  ensures  that  information  systems  and organizations have the necessary trustworthiness and resiliency to support essential mission and business functions, the U.S. critical infrastructure, and continuity of government. '…The Task Force notes that the cyber threat to U.S. critical infrastructure is outpacing efforts to reduce pervasive vulnerabilities, so that for the next decade at least the United States must lean significantly on deterrence to address the cyber threat posed by the most capable U.S. adversaries. It is clear that a more proactive and systematic approach to U.S. cyber deterrence is urgently needed…'

The security and privacy controls specified in the baselines represent the state-of-the-practice protection measures for individuals, information systems, and organizations.

Control Baselines for Information Systems and Organizations


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What are the CMMC Level 3 requirements?

[Assistant]
According to Enhanced Security Requirements for Protecting Controlled Unclassified Information_ A Supplement to NIST Special Publication 800-171:

systems, but such standards and guidelines shall not apply to national security systems without the express approval of the appropriate federal officials exercising policy authority over such systems.
This guideline is consistent with requirements of the Office of Management and Budget (OMB) Circular A-130. Nothing in this publication should be taken to contradict the standards and guidelines made mandatory and binding on federal agencies by the Secretary of Commerce under statutory authority. Nor should these guidelines be interpreted as altering or superseding the existing authorities of the Secretary of Commerce, OMB Director, or any other federal official. This publication may be used by nongovernmental organizations on a voluntary basis and is not subject to copyright in the United States. Attribution would, however, be appreciated by NIST. National Institute of Standards and Technology Special Publication 800-172 Natl. Inst. Stand. Technol. Spec. Publ. 800-172, 84 pages (February 2021)

CODEN: NSPUE2

This publication is available free of charge from:

https://doi.org/10.6028/NIST.SP.800-172

Certain  commercial  entities,  equipment,  or  materials  may  be  identified  in  this  document  to describe an experimental procedure or concept adequately. Such identification is not intended to imply recommendation or endorsement by NIST, nor is it intended to imply that the entities, materials, or equipment are necessarily the best available for the purpose. There may be references in this publication to other publications currently under development by  NIST  in  accordance  with  its  assigned  statutory  responsibilities. The  information  in  this publication, including concepts, practices, and methodologies, may be used by federal agencies even  before  the  completion  of  such  companion  publications. Thus,  until  each  publication  is completed,  current  requirements,  guidelines,  and  procedures,  where  they  exist,  remain operative.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Protecting Controlled Unclassified Information (CUI)_ NIST Special Publication 800-171, Revision 3. Small Business Primer provide? (Part 9)

[Assistant]
NIST does not necessarily endorse the views expressed or the facts presented on those sites. Further, NIST does not endorse any commercial products that may be advertised or available on these sites.
ht ps:/

csrc.nist.gov/projects/protecting-control ed-unclas ified-information

## Introductory Tips for Implementers

<!-- image -->

## What's New in SP 800 -171, Revision 3? ## SP 800-171, Revision 3 was published in May 2024. Significant changes include:

## Updates to the Security Requirements and Families

- Based on NIST SP 800-53, Revision 5 and the NIST SP 800-53B moderate impact control baseline. - Applies updated tailoring criteria addressing stakeholder feedback (adding new, consolidating, and withdrawing requirements). - Includes increased specificity in security requirements. - Introduces organization-defined parameters (ODP) to increase flexibility to better manage organizationspecific risks. ## Additional Revision 3 Resources

- A CUI overlay (.xlsx) showing the direct link between SP 800-53 and SP 800171, including NIST's tailoring decisions. - Transitioning your organization from implementation of Revision 2 to Revision 3? Review this detailed analysis of the changes between Revision 2 and Revision 3 (.xlsx). - The SP 800-171 security requirements in multiple formats (Excel, JSON, and online) through the NIST Cybersecurity and Privacy Reference Tool. ht ps:/

csrc.nist.gov/projects/protecting-control ed-unclas ified-information

## Key Terms

<!-- image -->

<!-- image -->

Control Baseline: A set of controls you can implement to meet strategic, legal, regulatory, or contractual security and privacy requirements and manage risk. Organization-Defined Parameters (ODPs) are included in certain security requirements. ODPs provide the flexibility and specificity needed by organizations to clearly define their CUI security requirements, given the diverse nature of their missions, business functions, operational environments, and risk tolerance.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Assessing Security Requirements for Controlled Unclassified Information provide? (Part 19)

[Assistant]
d with individuals are discovered. A.03.01.01.g.01: account managers and designated personnel or roles are notified within <A.03.01.01.ODP[02]: time period> when accounts are no longer required.
A.03.01.01.g.02: account managers and designated personnel or roles are notified within <A.03.01.01.ODP[03]: time period> when users are terminated or transferred. A.03.01.01.g.03: account managers and designated personnel or roles are notified within <A.03.01.01.ODP[04]: time period> when system usage or the need-to-know changes for an individual. A.03.01.01.h: users are required to log out of the system after <A.03.01.01.ODP[05]: time period> of expected inactivity or when the following circumstances occur: <A.03.01.01.ODP[06]: circumstances> .

Assessing Security Requirements for Controlled Unclassified Information


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Protecting Controlled Unclassified Information (CUI)_ NIST Special Publication 800-171, Revision 3. Small Business Primer provide? (Part 11)

[Assistant]
f those systems or components, helps practitioners understand the scope of applicability of SP 800-171 security requirements to business systems. <!-- image -->

Scope and Applicability of SP 800-171.
The security requirements in NIST SP 800-171 are only applicable to components of nonfederal systems that process, store, or transmit CUI or that provide protection for such components. Appropriately scoping requirements is an important factor in determining protection-related investment decisions and managing security risks for your business. You may limit the scope of the security requirements by isolating the system components in a separate security domain. Isolation can be achieved by implementing subnetworks with firewalls or other boundary protection devices. Security domains may employ physical separation, logical separation, or a combination of both. This approach can provide adequate security for CUI and avoid increasing the organization's security posture beyond what it requires for protecting its missions, operations, and assets. ht ps:/

csrc.nist.gov/projects/protecting-control ed-unclas ified-information

Below is a sample CUI data flow diagram for a fictional company. Create your own diagram to understand how CUI flows into, within, and out of the business. <!-- image -->

## General Tips for Getting Started with NIST SP 800-171

<!-- image -->

| Identify the role(s) responsible for security and provide the necessary resources. | Whether it is just one person or multiple people within the business, ensure roles, responsibilities, and authorities related to cybersecurity risk management are established, communicated, understood, and enforced. Even if cybersecurity activities are outsourced to an external provider, someone within the business should still be designated to manage cybersecurity risk.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Summary of NIST SP 800-53, Revision 4_ Security and Privacy Controls for Federal Information Systems and Organizations provide? (Part 3)

[Assistant] The guide was developed and is maintained by the Joint Task Force Transformation Initiative Interagency Working Group, part of an ongoing information security partnership among the U.S. Department of Defense, the Intelligence Community, the Committee on National Security Systems, the Department of Homeland Security, and U.S. federal civil agencies. SP 800-53 Revision 4 has been updated to reflect the evolving technology and threat space. Example areas include issues particular to mobile and cloud computing; insider threats; applications security; supply chain risks; advanced persistent threat; and trustworthiness, assurance, and resilience of information systems. The revision also contains a new appendix of privacy controls, and related implementation guidance (Appendix J), based on the Fair Information Practice Principles (FIPPs), a widely accepted framework of defining principles to be used in the evaluation and consideration of systems, processes, or programs that affect individual privacy. SP 800-53 Revision 4 is part of the NIST Special Publication 800-series that reports on the NIST Information Technology Laboratory's (ITL) computer security-related research, guidelines, and outreach. The publication provides a comprehensive set of security controls, three security control baselines (low, moderate, and high impact), and guidance for tailoring the appropriate baseline to specific needs according to the organization's missions, environments of operation, and technologies used. As the risk to an information system's confidentiality, integrity and/or availability increases, the need for additional controls to protect the system may also increase accordingly. SP 800-53 Revision 4 provides the security control baselines as the starting point for the security control selection process.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Cybersecurity Supply Chain Risk Management Practices for Systems and Organizations provide? (Part 12)

[Assistant]
Over Suppliers...........................177                                           |                                                                                |

| C.1.2.
SCENARIO 2: Telecommunications Counterfeits......................................................................181                           |     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------|-----|
| C.1.3. SCENARIO 3: Industrial Espionage............................................................................................184                |     |
| C.1.4. SCENARIO 4: Malicious Code Insertion ....................................................................................188                   |     |
| C.1.5. SCENARIO 5: Unintentional Compromise ................................................................................190                       |     |
| C.1.6. SCENARIO 6: Vulnerable Reused Components Within Systems ..............................................193                                      |     |
| Appendix D. C-SCRM Templates....................................................................................................... | 196 |
| D.1.1. C-SCRM Strategy and Implementation Plan Template............................................................196                                |     |
| D.1.1.1. Purpose...............................................................................................................................196    |     |
| D.1.1.2. Authority and Compliance..................................................................................................197                |     |
| D.1.1.3. Strategic Objectives............................................................................................................198          |     |
| D.1.1.4.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for Planning?

[Assistant]
According to Control Baselines for Information Systems and Organizations:

There may be references in this publication to other publications currently under development by NIST in accordance with its assigned statutory responsibilities. The information in this publication, including concepts, practices, and methodologies may be used by federal agencies even before the completion  of  such  companion  publications. Thus,  until  each  publication  is  completed,  current requirements, guidelines, and procedures, where they exist, remain operative. For planning and transition purposes, federal agencies may wish to closely follow the development of these new publications by NIST. | CHAPTERONE INTRODUCTION...................................................................................................... 1               | CHAPTERONE INTRODUCTION...................................................................................................... 1               | CHAPTERONE INTRODUCTION...................................................................................................... 1   |
|-----------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------|
| 1.1                                                                                | PURPOSEANDAPPLICABILITY ...................................................................................................


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] How does Enhanced Security Requirements for Protecting Controlled Unclassified Information_ A Supplement to NIST Special Publication 800-171 support CMMC certification?

[Assistant]
According to Enhanced Security Requirements for Protecting Controlled Unclassified Information_ A Supplement to NIST Special Publication 800-171:

systems, but such standards and guidelines shall not apply to national security systems without the express approval of the appropriate federal officials exercising policy authority over such systems.
This guideline is consistent with requirements of the Office of Management and Budget (OMB) Circular A-130. Nothing in this publication should be taken to contradict the standards and guidelines made mandatory and binding on federal agencies by the Secretary of Commerce under statutory authority. Nor should these guidelines be interpreted as altering or superseding the existing authorities of the Secretary of Commerce, OMB Director, or any other federal official. This publication may be used by nongovernmental organizations on a voluntary basis and is not subject to copyright in the United States. Attribution would, however, be appreciated by NIST. National Institute of Standards and Technology Special Publication 800-172 Natl. Inst. Stand. Technol. Spec. Publ. 800-172, 84 pages (February 2021)

CODEN: NSPUE2

This publication is available free of charge from:

https://doi.org/10.6028/NIST.SP.800-172

Certain  commercial  entities,  equipment,  or  materials  may  be  identified  in  this  document  to describe an experimental procedure or concept adequately. Such identification is not intended to imply recommendation or endorsement by NIST, nor is it intended to imply that the entities, materials, or equipment are necessarily the best available for the purpose. There may be references in this publication to other publications currently under development by  NIST  in  accordance  with  its  assigned  statutory  responsibilities. The  information  in  this publication, including concepts, practices, and methodologies, may be used by federal agencies even  before  the  completion  of  such  companion  publications. Thus,  until  each  publication  is completed,  current  requirements,  guidelines,  and  procedures,  where  they  exist,  remain operative.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Summary of NIST SP 800-53, Revision 4_ Security and Privacy Controls for Federal Information Systems and Organizations provide? (Part 4)

[Assistant]
additional controls to protect the system may also increase accordingly. SP 800-53 Revision 4 provides the security control baselines as the starting point for the security control selection process.
The baselines are chosen based on the security category and associated impact level of information systems as described in Federal Information Processing Standard Publication (FIPS) 199, Standards for Security Categorization of Federal Information and Information Systems, and FIPS Publication 200, Minimum Security Requirements for Federal Information and Information Systems . A separate guideline, SP 800-53A, Guide for Assessing the Security Controls in Federal Information Systems and Organizations, provides specific guidelines that facilitate periodic assessment of security controls to ensure that controls have been implemented correctly, are operating as intended, and are meeting the organization's security requirements. ## 2 NIST SP 800-53 Revision 4 and the Risk Management Framework (RMF)

NIST SP 800-39, Managing Information Security Risk , defines risk management as 'the program and supporting processes to manage information security risk to organizational operations (including mission, functions, and reputation), organizational assets, individuals, other organizations, and the Nation'. To integrate the risk management process throughout an organization and to address its mission and business concerns, a three-tiered approach is employed. The process is carried out across three tiers with the objective of continuous improvement in the organization's risk-related activities, with effective communication among tiers and stakeholders. Figure 1 illustrates the three-tiered approach to risk management.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for Risk Assessment?

[Assistant]
According to Control Baselines for Information Systems and Organizations:

ence is urgently needed…'

The security and privacy controls specified in the baselines represent the state-of-the-practice protection measures for individuals, information systems, and organizations.
The controls comprising the baselines are periodically reviewed and revised to reflect the experience gained from using the controls; new or revised laws, executive orders, directives, regulations, policies, and standards; changing security and privacy requirements; emerging threats, vulnerabilities, attacks, and information processing methods; and the availability of new technologies. Thus, the security and privacy controls specified in the baselines are also expected to change over time as controls are withdrawn, revised, and added. In addition to the need for change, the need for stability is addressed by requiring that proposed changes to the baseline undergo a rigorous and transparent public review process to obtain public and private sector feedback and to build a consensus for baseline changes. The public review process provides a stable, flexible, and technically sound set of security and privacy control baselines.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for System and Services Acquisition?

[Assistant]
According to Summary of NIST SP 800-53, Revision 4_ Security and Privacy Controls for Federal Information Systems and Organizations:

Information technologySecurity techniques-Information security management systems-Requirements and ISO/IEC 15408, Information technology -- Security techniques -- Evaluation criteria for IT security .
ISO/IEC 27001 applies to all types of organizations and specifies requirements for establishing, implementing, operating, monitoring, reviewing, maintaining, and improving a documented information security management system (ISMS) within the context of business risks. ISO/IEC 15408 (also known as the Common Criteria) provides functionality and assurance requirements for developers of information systems and information system components (i.e., information technology products). Since many of the technical security controls defined in Appendix F are implemented in hardware, software, and firmware components of information systems, organizations can obtain significant benefit from the acquisition and employment of information technology products evaluated against the requirements of ISO/IEC 15408. The use of such products can provide evidence that certain security controls are implemented correctly, operating as intended, and producing the desired effect in satisfying stated security requirements.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC Level 3 require for Incident Response?

[Assistant]
According to Enhanced Security Requirements for Protecting Controlled Unclassified Information_ A Supplement to NIST Special Publication 800-171:

............................................ 5                        |
| 2.1 DEVELOPMENTAPPROACH ......................................................................................................
| 5                                                                                |
| 2.2 ORGANIZATIONANDSTRUCTURE                                                                                | ............................................................................................. 7                                                  |
| 2.3 FLEXIBLE APPLICATION                                                                                | ............................................................................................................. 9                                  |
| CHAPTER THREE THE REQUIREMENTS......................................................................................... 11                       | CHAPTER THREE THE REQUIREMENTS......................................................................................... 11                       |
| 3.1 ACCESSCONTROL                                                                                | .................................................................................................................. 12                            |
| 3.2 AWARENESSANDTRAINING                                                                                | ...................................................................................................


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for Configuration Management?

[Assistant]
According to A Zero Trust Architecture Model for Access Control in Cloud-Native Applications in Multi-Cloud Environments:

Each service mesh instance has two main logical components: 1) a control plane that implements the APIs needed to define various configurations and policies that govern access between various microservices in that cluster and 2) a data plane that enforces those policies at runtime. However, a uniform set of policies is also needed to govern access between any pair of microservices or services in the enterprise irrespective of their location or the service mesh instance of which they are a part. This requires a global control plane that can define a uniform set of policies applicable to the entire set of services that operate in the enterprise and disseminate them to the control planes of the individual service mesh instances. It is technically possible to have a single service mesh control plane instance (i.e., single service mesh instance) that manages multiple clusters spanning multiple environments (i.e., on-premises and on clouds). However, this architecture may make the multiple clusters a single failure domain and potentially defeat the very purpose of designing a multi-cluster configuration (i.e., availability). Thus, running a service mesh control plane instance for each cluster isolates the failure domain and improves availability and scalability. Further, providing the required underlying network connectivity to facilitate every workload (since each workload or application instance has an associated sidecar proxy that forms the data plane) to communicate with a single

Note on the above recommendation: In an ideal situation, services would be authenticated for each service request. Since this is highly disruptive from the point of view of application transaction response, this authentication is accomplished at the connection level via mutual Transport Layer Security  (mTLS) when a service makes an initial connection establishment as part of its inter-service call. This authentication is not performed again in subsequent calls.

A Zero Trust Architecture Model for Access Control in Cloud-Native Applications in Multi-Cloud Environments


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Summary of NIST SP 800-53, Revision 4_ Security and Privacy Controls for Federal Information Systems and Organizations provide? (Part 10)

[Assistant]
parameters that organizations define, providing them with the ability to tailor security controls based on specific security requirements, environments of operation, and organizational risk tolerance.
Parameters assigned and/or selected by organizations for a given base control also apply to all control enhancements associated with that control. The first security control in each family (referred to as the dash-1control) addresses policies and procedures needed for effective implementation of all the other controls within each family. Therefore, requirements to develop policies and procedures are not repeated in individual controls. Many security controls and enhancements include supplemental guidance. The supplemental guidance provides additional information about a control or enhancement to help organizations define, develop, and/or implement security controls but does not include any additional requirements. SP 800-53 Rev. 4 includes many changes from SP 800-53 Rev. 3 - 295 controls and control enhancements were added while approximately 100 controls and control enhancements were withdrawn or incorporated into others. Of the eighteen security control families in SP 800-53 Rev. 4, seventeen families are described in the security control catalog in Appendix F, and are closely aligned with the seventeen minimum security requirements for federal information and information systems in FIPS Publication 200, Minimum Security Requirements for Federal Information and Information Systems . One additional family, the Program Management (PM) family, provides controls for information security programs themselves. This family is described in Appendix G of SP 800-53 Rev. 4. While it is not specifically referenced in FIPS 200, the PM section provides security controls at the organization level rather than the information system level. The PM controls are typically implemented at the organization level and not directed at individual organizational information systems.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for Security Assessment?

[Assistant]
According to Security and Privacy Controls for Information Systems and Organizations:

Control AC-19 Discussion: Change “Many controls for mobile
devices are reflected in other controls allocated to the initial control
baselines as starting points for the development of security plans
and overlays using the tailoring process.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC Level 3 require for Risk Assessment?

[Assistant]
According to Protecting Controlled Unclassified Information (CUI)_ NIST Special Publication 800-171, Revision 3. Small Business Primer:

NIST SP 800-172, Enhanced Security Requirements for Protecting Controlled Unclassified Information provides enhanced security requirements to help protect CUI associated with critical programs or high value assets in nonfederal systems and organizations from the advanced persistent threat (APT). The SP 800-172 enhanced security requirements are designed to protect confidentiality, integrity and availability of information.

| Access Control                    | Maintenance         | Security Assessment and Monitoring   |
|-----------------------------------|---------------------|--------------------------------------|
| Awareness and Training            | Media Protection    | System and Communications Protection |
| Audit and Accountability          | Personnel Security  | System and Information Integrity     |
| Configuration Management          | Physical Protection | Planning                             |
| Identification and Authentication | Risk Assessment     | System and Services Acquisition      |
| Incident Response                 |                     | Supply Chain Risk Management         |

- An understanding of the need for security (why is cybersecurity important to our business mission?).
- Specific actions required of users to maintain security (required use of multi-factor authentication, not sharing passwords, etc.).
- How to respond to confirmed or suspected incidents.
- How to securely handle CUI (training should be provided to staff before authorizing access to the system or CUI).
- How to recognize and report insider threats, social engineering, and social mining.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for Planning?

[Assistant]
According to Cybersecurity Supply Chain Risk Management Practices for Systems and Organizations:

There may be references in this publication to other publications currently under development by NIST in accordance with its assigned statutory responsibilities. The information in this publication, including concepts and methodologies, may be used by federal agencies even before the completion of such companion publications. Thus, until each publication is completed, current requirements, guidelines, and procedures, where they exist, remain operative. For planning and transition purposes, federal agencies may wish to closely follow the development of these new publications by NIST. | 3.4.3. Enhancing Practices....................................................................................................................49      |                                                                                |
|-------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------|
| 3.5.1. Measuring C-SCRM Through Performance Measures................................................................52                                |                                                                                |
| References.........................................................................................................................................57 |                                                                                |
| Appendix A. C-SCRM Security Controls............................................................................................... | 63                                                                                |
| A.1.1.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC Level 3 require for Security Assessment?

[Assistant]
According to Enhanced Security Requirements for Protecting Controlled Unclassified Information_ A Supplement to NIST Special Publication 800-171:

...... 4                                                                     |
| CHAPTERTWO THE FUNDAMENTALS............................................................................................
5                        | CHAPTERTWO THE FUNDAMENTALS............................................................................................ 5                        |
| 2.1 DEVELOPMENTAPPROACH ...................................................................................................... | 5                                                                                |
| 2.2 ORGANIZATIONANDSTRUCTURE                                                                                | ............................................................................................. 7                                                  |
| 2.3 FLEXIBLE APPLICATION                                                                                | ............................................................................................................. 9                                  |
| CHAPTER THREE THE REQUIREMENTS......................................................................................... 11                       | CHAPTER THREE THE REQUIREMENTS......................................................................................... 11                       |
| 3.1 ACCESSCONTROL                                                                                | ..................................................................................................................


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Enhanced Security Requirements for Protecting Controlled Unclassified Information_ A Supplement to NIST Special Publication 800-171 provide? (Part 20)

[Assistant]
and communications. Therefore, CUI that is processed, stored, or transmitted by any of the above systems related to a critical program or high value asset requires additional protection from the APT.
## 1.1   PURPOSE AND APPLICABILITY

The purpose of this publication is to provide federal agencies with a set of enhanced security requirements 9 for protecting the confidentiality , integrity , and availability of CUI: (1) when the CUI is resident in a nonfederal system and organization, (2) when the nonfederal organization is not collecting or maintaining information on behalf of a federal agency or using or operating a system on behalf of an agency, 10 and (3) where there are no specific safeguarding requirements for protecting the CUI prescribed by the authorizing law, regulation, or government-wide policy for the CUI category listed in the CUI Registry. 11 The enhanced security requirements address the protection of CUI by promoting: (1) penetration-resistant architecture, (2) damage-limiting operations, and (3) designs to achieve cyber resiliency and survivability. 12 The enhanced security requirements are intended to supplement the basic and derived security requirements in [SP 800-171] and are for use by federal agencies in contractual vehicles or other agreements established between those agencies and nonfederal organizations. The enhanced security requirements apply to components 13 of nonfederal systems that process, store, or transmit CUI associated with a critical program or a high value asset or that provide security protection for such components. If nonfederal organizations designate specific system components for the processing, storage, or transmission of CUI associated with a critical program or a high value asset, those organizations may limit the scope of the enhanced security requirements by isolating the designated system components in a separate CUI security domain.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for Access Control?

[Assistant]
According to Risk Management Framework for Information Systems and Organizations_ A System Life Cycle Approach for Security and Privacy:

esses at the organization level. In addition, it establishes responsibility and accountability for the controls implemented within an organization's information systems and inherited by those systems.
assess; authorization to operate; authorization to use; authorizing official; categorize; common control; common control authorization; common control provider; continuous monitoring; control assessor; control baseline; cybersecurity framework profile; hybrid control; information owner or steward; information security; monitor; ongoing authorization; plan of action and milestones; privacy; privacy assessment report; privacy control; privacy plan; privacy risk; risk assessment; risk executive function; risk management; risk management framework; security; security assessment report; security control; security engineering; security plan; security risk; senior agency information security officer; senior agency official for privacy; supply chain risk management; system development life cycle; system owner; system privacy officer; system security officer; system-specific control.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Protecting Controlled Unclassified Information (CUI)_ NIST Special Publication 800-171, Revision 3. Small Business Primer provide? (Part 2)

[Assistant]
ent, or possibly with other organizations like municipal governments, prime contractors, universities, etc., you will likely be required to demonstrate you are taking adequate measures to protect CUI.
Examples of CUI include:

<!-- image -->

|                      | When provided as part of a government contract, examples include:                                                                                | Marking 1     |
|----------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------|
| Controlled           | e.g., research and engineering data, engineering drawings, specifications, process sheets, manuals, technical reports, technical orders, catalog-item identifications, data sets, studies and analyses and related information, and computer software executable code and source code. | CUI//SP-CTI   |
| General Proprietary  | e.g., financial information, trade secrets, product research and development, existing and future product designs and performance specifications. | CUI//PROPIN   |
| Business Information | you do not handle CUI, implementing the security requirements in SP 800-171 will                                                                                | help you take |

1  For more information on types of CUI and markings, visit the National Archives and Records Administration (NARA) https://www.archives.gov/cui.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC Level 3 require for Security Assessment?

[Assistant]
According to Protecting Controlled Unclassified Information (CUI)_ NIST Special Publication 800-171, Revision 3. Small Business Primer:

| Access Control                    | Maintenance         | Security Assessment and Monitoring   |
|-----------------------------------|---------------------|--------------------------------------|
| Awareness and Training            | Media Protection    | System and Communications Protection |
| Audit and Accountability          | Personnel Security  | System and Information Integrity     |
| Configuration Management          | Physical Protection | Planning                             |
| Identification and Authentication | Risk Assessment     | System and Services Acquisition      |
| Incident Response                 |                     | Supply Chain Risk Management         |

Below is an example of the Incident Response Testing requirement, which is part of the Incident Response (IR) family. The structure and content of a typical security requirement includes:

ODPs support consistent security assessments in determining whether security requirements have been satisfied. If a federal agency or a consortium of agencies do not specify a particular value or range of values for an ODP, nonfederal organizations must assign the value or values to complete the security requirement.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC Level 3 require for System and Services Acquisition?

[Assistant]
According to Protecting Controlled Unclassified Information (CUI)_ NIST Special Publication 800-171, Revision 3. Small Business Primer:

|                      | When provided as part of a government contract, examples include:                                                                                | Marking 1     |
|----------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------|
| Controlled           | e.g., research and engineering data, engineering drawings, specifications, process sheets, manuals, technical reports, technical orders, catalog-item identifications, data sets, studies and analyses and related information, and computer software executable code and source code. | CUI//SP-CTI   |
| General Proprietary  | e.g., financial information, trade secrets, product research and development, existing and future product designs and performance specifications.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What additional guidance does Security and Privacy Controls for Information Systems and Organizations provide? (Part 6)

[Assistant]
e
Matthew A. Kozma
Chief Information Officer

John Sherman
Principal Deputy CIO

Michael E. Waschull
Deputy Chief Information Officer

Mark Hakun
Deputy CIO for Cybersecurity and DoD SISO

Clifford M.
Conner
Cybersecurity Group and IC CISO

Kevin Dulany
Director, Cybersecurity Policy and Partnerships

Vacant
Director, Security Coordination Center

National Institute of Standards
and Technology
Charles H. Romine
Director, Information Technology Laboratory

Kevin Stine
Acting Cybersecurity Advisor, ITL

Matthew Scholl
Chief, Computer Security Division

Kevin Stine
Chief, Applied Cybersecurity Division

Ron Ross
FISMA Implementation Project Leader

Committee on National Security
Systems
Mark G. Hakun
Chair

Susan Dorr
Co-Chair

Kevin Dulany
Tri-Chair—Defense Community

Chris Johnson
Tri-Chair—Intelligence Community

Vicki Michetti
Tri-Chair—Civil Agencies

Joint Task Force Working Group

Victoria Pillitteri
NIST, JTF Leader

     McKay Tolboe
     DoD

Dorian Pappas
Intelligence Community

Kelley Dempsey
NIST

Ehijele Olumese
The MITRE Corporation

     Lydia Humphries
     Booz Allen Hamilton

Daniel Faigin
Aerospace Corporation

Naomi Lefkovitz
NIST

Esten Porter
The MITRE Corporation

     Julie Nethery Snyder
     The MITRE Corporation

Christina Sames
The MITRE Corporation

Christian Enloe
NIST

David Black
The MITRE Corporation

     Rich Graubart
     The MITRE Corporation

Peter Duspiva
Intelligence Community

Kaitlin Boeckl
NIST

Eduardo Takamura
NIST

     Ned Goren
     NIST

Andrew Regenscheid
NIST

Jon Boyens
NIST

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NIST SP 800-53, REV.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC Level 3 require for System and Services Acquisition?

[Assistant]
According to Enhanced Security Requirements for Protecting Controlled Unclassified Information_ A Supplement to NIST Special Publication 800-171:

There may be references in this publication to other publications currently under development by  NIST  in  accordance  with  its  assigned  statutory  responsibilities. The  information  in  this publication, including concepts, practices, and methodologies, may be used by federal agencies even  before  the  completion  of  such  companion  publications. Thus,  until  each  publication  is completed,  current  requirements,  guidelines,  and  procedures,  where  they  exist,  remain operative. For planning and transition purposes, federal agencies may wish to closely follow the development of these new publications by NIST. The National Institute of Standards and Technology (NIST) Information Technology Laboratory (ITL) promotes the U.S. economy and public welfare by providing technical leadership for the Nation's measurement and standards infrastructure. ITL develops tests, test methods, reference data, proof of concept implementations, and technical analyses to advance the development and productive use of information technology (IT). ITL's responsibilities include the development of management, administrative, technical, and physical standards and guidelines for the costeffective security of other than national security-related information in federal information systems. The Special Publication 800-series reports on ITL's research, guidelines, and outreach efforts in information systems security and privacy and its collaborative activities with industry, government, and academic organizations. | CHAPTERONE INTRODUCTION...................................................................................................... | CHAPTERONE INTRODUCTION......................................................................................................


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for Configuration Management?

[Assistant]
According to Cybersecurity Supply Chain Risk Management Practices for Systems and Organizations:

| 1. Introduction.....................................................................................................................................1   |
|---------------------------------------------------------------------------------------------------------------------------------------------------------|
| 1.4.1. Enterprise Risk Management and C-SCRM Owners and Operators.............................................5                                         |
| 1.4.2. Enterprise, Agency, and Mission and Business Process Owners and Operators .........................5                                             |
| 1.4.3. Acquisition and Procurement Owners and Operators.................................................................6                               |
| 1.4.4. Information Security, Privacy, or Cybersecurity Operators .........................................................6                             |
| 1.4.5. System Development, System Engineering, and System Implementation Personnel.................7                                                    |
| 1.5.1. Enterprise's Supply Chain.............................................................................................................9          |
| 1.5.2. Supplier Relationships Within Enterprises .................................................................................10                    |
| 2. Integration of C-SCRM Into Enterprise-Wide Risk Management...................................................... 18                                  |
| 2.3.1. Roles and Responsibilities Across the Three Levels ...................................................................24                         |
| 2.3.2. Level 1 -Enterprise...................................................................................................................27         |
| 2.3.3.


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for Incident Response?

[Assistant]
According to Control Baselines for Information Systems and Organizations:

| CHAPTERONE INTRODUCTION...................................................................................................... 1               | CHAPTERONE INTRODUCTION...................................................................................................... 1               | CHAPTERONE INTRODUCTION...................................................................................................... 1   |
|-----------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------|
| 1.1                                                                                | PURPOSEANDAPPLICABILITY ................................................................................................... | 1                                                                                |
| 1.2                                                                                | TARGET AUDIENCE .................................................................................................................. | 2                                                                                |
| 1.3                                                                                | ORGANIZATIONAL RESPONSIBILITIES .........................................................................................


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC Level 3 require for System and Information Integrity?

[Assistant]
According to Enhanced Security Requirements for Protecting Controlled Unclassified Information_ A Supplement to NIST Special Publication 800-171:

........................................................................ | CHAPTERONE INTRODUCTION......................................................................................................
|
|--------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------|
| 1.1 PURPOSEANDAPPLICABILITY                                                                                | ................................................................................................... 3                                            |
| 1.2 TARGET AUDIENCE                                                                                | .................................................................................................................. 4                             |
| 1.3 ORGANIZATIONOF THIS SPECIAL PUBLICATION                                                                                | .......................................................................... 4                                                                     |
| CHAPTERTWO THE FUNDAMENTALS............................................................................................ 5                        | CHAPTERTWO THE FUNDAMENTALS............................................................................................ 5                        |
| 2.1 DEVELOPMENTAPPROACH ......................................................................................................


[System] You are a CMMC (Cybersecurity Maturity Model Certification) expert with deep knowledge of NIST SP 800-171, SP 800-172, and defense contractor cybersecurity requirements. You provide accurate guidance on CMMC compliance, CUI protection, and DoD security controls.

[User] What does CMMC require for Security Assessment?

[Assistant]
According to Summary of NIST SP 800-53, Revision 4_ Security and Privacy Controls for Federal Information Systems and Organizations:

SP 800-53 Revision 4 has been updated to reflect the evolving technology and threat space. Example areas include issues particular to mobile and cloud computing; insider threats; applications security; supply chain risks; advanced persistent threat; and trustworthiness, assurance, and resilience of information systems. The revision also contains a new appendix of privacy controls, and related implementation guidance (Appendix J), based on the Fair Information Practice Principles (FIPPs), a widely accepted framework of defining principles to be used in the evaluation and consideration of systems, processes, or programs that affect individual privacy. Many organizations use well-known international information security standards as the basis or as a supplemental source of security controls for risk management. To aid in selection and comparison, SP 800-53 Rev. 4 provides mapping tables to provide organizations with a general indication of security control coverage with respect to ISO/IEC 27001, Information technologySecurity techniques-Information security management systems-Requirements and ISO/IEC 15408, Information technology -- Security techniques -- Evaluation criteria for IT security . ISO/IEC 27001 applies to all types of organizations and specifies requirements for establishing, implementing, operating, monitoring, reviewing, maintaining, and improving a documented information security management system (ISMS) within the context of business risks. ISO/IEC 15408 (also known as the Common Criteria) provides functionality and assurance requirements for developers of information systems and information system components (i.e., information technology products).