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To revoke an AI agent’s access, stop its execution, then disable or revoke every identity, credential, permission grant, and session it can use—at the identity provider and at each connected service. Disabling one account or logging out is not proof that existing API tokens, refresh tokens, or third-party sessions have stopped working. Verify that each target service rejects the agent’s old access.
Why disabling the agent account may not be enough
An AI agent should be treated as a workload identity with several possible routes into systems, not just as a chatbot login. It may have a service identity, API keys, OAuth grants, access and refresh tokens, signing credentials, active sessions, and secrets stored in a vault, code, configuration, or deployment environment. NIST describes an important risk of bearer tokens: a person, system, or service that obtains one may be able to present it. NIST’s agent identity guidance explains why protecting the agent’s identity and tokens matters.
Identity, authorization, and sessions are related but separate controls. An authenticator helps establish identity; an authorization grant determines what that identity can do. An identity-provider session can also be separate from a session at a relying service. NIST warns that access and refresh tokens may remain valid after an authentication session ends, so central logout or account disablement alone cannot establish that access has ended. NIST SP 800-63B covers these distinctions.
Map the agent’s access paths
Before retirement, and as soon as practical during an incident, build an access list from the agent configuration, identity provider, secrets store, deployment platform, and connected services. Include credentials the agent could reach indirectly, such as those injected into a job or tool environment.
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| Access path | Where to revoke or disable it | What to check |
|---|---|---|
| Service or workload identity | Identity provider or workload-identity system, and any service that has its own copy of the identity or permissions | The identity is disabled or deprovisioned and connected services no longer authorize it. |
| OAuth grants and connected-app permissions | The authorization server or account that issued the grant; also check the connected application where it manages permissions locally | The grant is removed and the application no longer accepts access derived from it. |
| API keys and other long-lived secrets | The API provider or secret issuer that validates the key | The old value is rejected. If the service must remain available, issue a narrowly scoped replacement only after revoking the exposed value. |
| Access tokens, refresh tokens, and signing credentials | The issuer and, where supported, each relying service that accepts or verifies them | Old tokens cannot be refreshed or used for new requests; relevant signing credentials are no longer trusted where they were exposed. |
| Active sessions | The identity provider and each connected service that maintains its own session | Sessions are ended separately wherever a service offers that control. |
| Stored copies and automated access | Vaults, source code, configuration, logs, agent environments, scheduled jobs, and deployment systems | Exposed or unneeded copies and jobs are addressed without destroying records needed for the incident. |
If the agent may be compromised: contain first
- Stop execution. Pause or isolate the agent and prevent automated restart while you contain the incident. This is an operational containment step; the exact control depends on how the agent is hosted.
- Use a trusted administrator account. Do not rely on the agent’s own credentials to revoke its access. Suspend or invalidate compromised authenticators promptly; NIST SP 800-63B calls for this after compromise detection. For exposed keys, OWASP’s Secrets Management Cheat Sheet calls for immediate revocation. OWASP’s secret-management guidance also covers incident response and secret lifecycle records.
- Revoke at the issuer and the services that accept the access. Disable the workload identity; remove OAuth or connected-app grants; revoke API keys, access and refresh tokens, and exposed signing credentials; and terminate sessions at relying services where possible. The controls and time for revocation to take effect vary by provider and token design.
- Rotate only what must remain in service. After revoking an exposed credential, issue a replacement only if continued authorized operation requires it, with the narrowest practical permissions and scope. Remove the compromised value from reachable code, configuration, and other accessible copies. Preserve incident evidence and required audit records rather than erasing logs needed for investigation.
- Investigate use and watch for reuse. Review available access and secret-use history, identify who or what could access the exposed value and when it was used, and alert on attempts to reuse revoked credentials. Check for additional keys, grants, or copies available to the same agent. OWASP recommends lifecycle logging that helps responders establish access and use.
When retiring an agent: deprovision deliberately
- Inventory the agent’s dependencies. List its identity, permissions, OAuth connections, secrets, scheduled jobs, active sessions, and every system or API it can reach.
- Remove identity and permissions across connected systems. Disable or deprovision the workload identity and remove its grants at each service; revoke outstanding credentials and end sessions using the service’s available controls.
- Clean up remaining operational access. Remove unneeded secrets from vaults, deployment configuration, and agent environments under your organization’s retention and incident-record policies. Disable or remove jobs and integrations that could recreate the agent or continue making requests.
- Record closure. Keep a service-by-service record of the access path, the revocation action, its result, and any provider-specific delay or exception.
Where supported, SCIM can automate identity provisioning, deprovisioning, and lifecycle operations across systems. It does not itself provide authentication or authorization, and support varies. NIST’s February 2026 NCCoE concept paper on software and AI agent identity discusses SCIM alongside OAuth 2.0/2.1, OpenID Connect, and SPIFFE/SPIRE. It is a concept document, not evidence that every product implements those capabilities.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to verify that access is actually revoked
Check each target service, not just the central identity dashboard. Where safe and supported, make a controlled request using the old credential or identity and confirm that the service rejects it; for grants and sessions, confirm the grant is absent and the session is no longer usable. Check that refresh attempts fail as well as ordinary API requests. Record what was tested, when, and the observed result. If a service does not offer a direct revocation or test mechanism, use its documented behavior and administrative audit records, and track any remaining exposure until the provider confirms closure.
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Do not promise immediate, global invalidation: token lifetime, revocation propagation, and service-side enforcement depend on provider architecture. NIST IR 8587, finalized September 15, 2026, provides implementation guidance for protecting identity tokens, access tokens, and assertions, including lifecycle controls, key management, and token verification across SSO, federation, and API scenarios. See the final NIST IR 8587 publication record.
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Reduce the impact of the next revocation
- Give each agent a distinct workload identity instead of sharing a human account or another workload’s credentials.
- Limit permissions and credential audiences to the services the agent needs, and prefer short-lived credentials when the environment supports them.
- Keep secrets in managed storage rather than embedding them in code or broadly accessible configuration, and know where deployment systems copy or inject them.
- Maintain an up-to-date inventory of grants, credentials, sessions, integrations, and automated jobs so a responder can revoke access without guessing.
- Log credential issuance, access, use, and revocation in a form responders can review. NIST’s identity-token guidance and the OWASP AI Agent Security Cheat Sheet provide additional security context.
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