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Agent Identity and Lifecycle Governance

An autonomous agent is a non-human principal that provisions itself, calls other services, delegates to sub-agents, and outlives any single request — and human identity systems were never designed for it. This series builds operational identity governance for agents from the ground up: why agents break human IAM and what a machine identity actually needs, how to provision and attest an identity so its bearer can be proven rather than assumed, how to run the credential lifecycle with short-lived tokens, rotation, and bounded delegation chains at runtime, how to decommission and revoke an agent's authority cleanly and provably, and how to govern a whole fleet with an identity inventory, least-privilege drift detection, and lifecycle audit. Grounded in NIST SP 800-207 Zero Trust Architecture, NIST SP 800-63 Digital Identity Guidelines, the SPIFFE workload-identity specification, the OAuth 2.0 and Token Exchange RFCs, the OWASP Agentic Security Initiative, and the NIST AI RMF.

Murali Chillakuru·5 articles
  1. 1
    Non-Human Identity for Agents: Why Agents Break Human IAM and What a Machine Identity Needs

    Autonomous agents are non-human principals that provision, delegate, and act at machine speed — and the identity systems built for people fail them in specific, nameable ways.

  2. 2
    Provisioning and Attestation: Issuing, Binding, and Proving an Agent's Identity

    Before an agent can hold an identity, an authority must prove the workload is what it claims to be — the attestation problem that turns a name into a credential you can trust.

  3. 3
    Credential Lifecycle: Short-Lived Tokens, Rotation, and Delegation Chains at Runtime

    An agent's credential is not a key you hand out once but a living thing that must expire, rotate without downtime, and narrow as it passes down a delegation chain.

  4. 4
    Decommissioning and Revocation: Killing an Agent's Authority Cleanly and Provably

    Short lifetimes bound how long a compromised agent stays dangerous; revocation is how you end its authority now — completely, and in a way you can prove.

  5. 5
    Governing the Fleet: Identity Inventory, Least-Privilege Drift, and Lifecycle Audit

    You cannot secure a population of agent identities you cannot enumerate; fleet governance is the discipline of knowing every identity, catching privilege that creeps, and proving the lifecycle holds.