| # 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 | | |