The proliferation of AI security frameworks is unnecessary. Existing NIST 800-53 Rev 5 controls already address AI agent security. You already have the controls—you’re just not mapping them.
The Framework You Already Own
47 NIST 800-53 controls across 14 families directly govern AI agent operations. No new frameworks needed.
Access Control (AC)
AI agents require documented service accounts (AC-2), least-privilege access enforcement (AC-3), and bounded permissions (AC-6)—identical to human user controls.
Audit and Accountability (AU)
Comprehensive logging (AU-2), detailed record content (AU-3), and active log review (AU-6) for all AI agent actions.
Configuration Management (CM)
Treat prompts and model versions as configurations requiring baselines (CM-2), change control (CM-3), and functionality minimisation (CM-7).
System and Information Integrity (SI)
Apply monitoring (SI-4) and input validation (SI-10) to detect anomalous agent behaviour and defend against injection attacks.
Five-Step Implementation
- Inventory all AI agents
- Map to 47 identified controls
- Identify gaps
- Close gaps in existing systems
- Audit using standard cadences
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