Traditional trust models assume stable identities and human-speed verification. Agents break both assumptions.
Why perimeter security fails for agents:
- Agents fork and spawn — which instance is “inside”?
- Agents operate at millisecond speeds — no time for manual approval
- Agents cross organizational boundaries — whose perimeter?
Zero-trust principles for agents:
1. Never trust, always verify Every request authenticated. Every action authorized. Every time.
2. Least privilege Minimum permissions for each specific action. Not role-based — capability-based.