vocabulary/data-classes.md

KYE™ Data Classification Vocabulary

Data classification labels are used in scopes, policies, and obligations to constrain what data classes an action may touch.

This document defines names only. Tagging rules and policy semantics are part of the normative specification.

Class	Meaning
public	Public information
internal	Internal to the organization
confidential	Confidential information
restricted	Restricted access required
secret	Secret information
classified	Classified under formal classification regimes
pii	Personally identifiable information
ephi	Electronic protected health information
cardholder_data	Payment cardholder data
financial_data	Financial data
operational_technology_data	Operational technology data
defense_data	Defense-related data
export_controlled_data	Export-controlled data
safety_critical_data	Safety-critical data