v1.0
L2 StandardForward-looking
7.1 Mutual Authentication
7. Agent-to-Agent Security — How do agents trust each other?
Description
Agent-to-agent communication MUST use mutual authentication.
Rationale
Without mutual authentication, agents can be impersonated.
Audit Procedure
1. Identify all A2A communication channels 2. Check for identity verification on both ends 3. Verify certificates are validated
Remediation
1. Implement mTLS 2. Use agent identity certificates 3. Validate against registry
Framework Mappings
CIS Control 3.10NIST PR.AC-1