Securing Multi-Agent Systems: Why Cryptographic Identity Beats Shared API Keys

As AI agents increasingly execute critical operations—from opening pull requests to modifying production data—traditional identity methods like shared API keys prove dangerously inadequate. This article demonstrates why cryptographic identity combined with role-based access control (RBAC) is no longer optional but essential infrastructure for any organization deploying autonomous agents. Understanding and implementing these security baselines directly determines whether agent systems become trusted assets or attack vectors.