AI Agent Identity: How to Authenticate and Govern AI Agents

This article explains the concept of AI agent identity and why each AI agent should be treated as a distinct non-human identity: how to authenticate agents (on-behalf-of for user-delegated actions and client-credentials for autonomous agents), the importance of short-lived federated credentials, least-privilege scopes, human-in-the-loop approvals for high-risk actions, runtime auditing, and products like Microsoft Entra Agent ID that help govern agents at scale.