← NIST CSF 2.0 · PROTECT — Identity, Authentication and Access Control
PR.AA-03 — Users, services and hardware are authenticated
Requirement
Users, services and hardware are authenticated, with the strength of authentication commensurate with risk.
What the engine looks for
Every group below must be satisfied — by an affirmative statement, not a plan, a hedge or a denial — for the control to count as covered. A term ending in … matches any word it begins. Supporting terms do not change the verdict — they raise confidence and distinguish a policy that names a mechanism from one that gestures at a category.
Finding any of these outranks coverage — a policy that admits the gap is worse than silence.
Equivalent controls elsewhere
Matched on shared topics. Satisfying this control usually moves these too.
| Framework | Control | Title | Shared topics |
|---|---|---|---|
| ISO 27001 | A.5.17 | Authentication information | authentication mfa |
| ISO 27001 | A.8.5 | Secure authentication | authentication mfa |
| PCI DSS 4.0.1 | 8.4 | Multi-factor authentication into the CDE and for remote access | mfa authentication |
| HIPAA | 164.312(d) | Person or entity authentication (R) | authentication mfa |
| GLBA | 314.4(c)(5) | Multi-factor authentication for any individual accessing information systems | mfa authentication |
| ISO 27001 | A.5.15 | Access control | authentication |
| PCI DSS 4.0.1 | 8.3 | Strong authentication factors | authentication |
| PCI DSS 4.0.1 | 8.6 | System and application accounts are managed | authentication |