The phases stay similar, but the containment logic must include tool connections and delegated permissions for AI agents. A suspended agent can still operate through connected systems if those paths remain live. The right comparison is not the label on the identity, but the amount of delegated execution authority it still has at runtime.
How incident runbooks should treat AI agents differently
Incident runbooks should not start from a different lifecycle model, but they do need different containment logic. For AI agents, the important question is not whether the account is “human” or “non-human”; it is whether the agent still has live tool paths, delegated permissions, or reusable secrets that let it keep acting after a pause or suspension. That changes the isolation step.
The practical difference shows up in runtime authority. A human account is usually contained by disabling the login path, but an AI agent may continue through connected systems if API keys, OAuth grants, service connections, webhook targets, or embedded tool credentials remain valid. That means the runbook has to treat the agent’s toolchain as part of the incident scope, not just the agent label.
This is the same reason NHI incident response often starts with credential and dependency mapping rather than only account disablement. If you can suspend the visible identity but leave the delegated execution path intact, you have not actually contained the actor.
What containment must include beyond account disablement
Containment for AI agents should explicitly cover the permissions and integrations that make autonomous action possible. In practice, that means identifying which tools the agent can call, which downstream systems those tools can reach, and whether any standing tokens, refresh tokens, or connector credentials can still be used outside the primary control plane.
For human or service accounts, you often assume that revoking the account or rotating a secret is enough to break the session. For an AI agent, the same action may be incomplete if the agent can reconstitute access through a companion service, cached credential, delegated workflow, or another connected automation layer. The runbook needs a step that asks, “What can still execute on behalf of this agent right now?”
That is why isolation order matters: disable the most powerful active paths first, then remove tokenized access, then cut off external tools and callbacks, and only after that confirm the agent can no longer trigger actions in downstream systems. If you reverse that order, you can preserve the very path the attacker or malfunctioning agent is using.
- Inventory the agent’s tool permissions before taking containment actions.
- Revoke or expire live credentials that the agent can still use indirectly.
- Disable connectors, webhooks, and delegated workflows that bypass the visible account state.
- Verify the agent cannot reach data, admin functions, or external actions through a secondary path.
Practical incident handling when the agent is the actor
For responders, the main operational shift is evidence collection around decisions and actions, not just authentication logs. You want to know which prompt, tool call, policy decision, or delegated grant led to the harmful behaviour, because the same agent may be restored later with narrower permissions. That is especially important when the issue is overreach rather than compromise.
In mixed environments, keep the response model aligned to delegated authority. If an AI agent accessed a system because it was allowed to call a tool, then the corrective action is not only “lock the account.” It is also “reduce the tool surface, reissue trust only where justified, and re-test the agent under constrained permissions.” For a service account, the emphasis may be on secret hygiene and access review; for an agent, tool governance becomes part of the containment decision.
Where this gets missed most often is in rollback planning. Teams restore the visible agent too early, before they have verified the surrounding integrations, which lets the same execution path remain live. The runbook should require a runtime authority check before restoration, not just an identity check.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Non-Human Identity Top 10, OWASP Agentic AI Top 10 and MITRE ATT&CK address the attack and risk surface, while CIS Controls v8 and NIST CSF 2.0 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-01 — Identity and Credential Lifecycle | AI agent containment depends on revoking live delegated access and credentials. |
| Recommendation — Revoke active agent credentials and dependent access paths before restoring service. | ||
| OWASP Agentic AI Top 10 | A1 — Agent Goal Hijacking and Tool Misuse | The question centers on tool access and delegated execution during incidents. |
| Recommendation — Contain agent tool access and validate delegated actions before re-enabling the agent. | ||
| CIS Controls v8 | 6 — Access Control Management | Incident runbooks must remove access paths and reduce standing privilege quickly. |
| Recommendation — Remove unnecessary access and disable exposed pathways during containment. | ||
| MITRE ATT&CK | T1078 — Valid Accounts | An agent may continue operating through valid credentials or delegated access. |
| Recommendation — Hunt for and revoke valid access used by the agent across connected systems. | ||
| NIST CSF 2.0 | RS.MI — Mitigation | The response phase here is focused on isolating harmful execution paths and stopping spread. |
| Recommendation — Mitigate by isolating tool access and stopping downstream agent execution paths. | ||
Practitioner Guidance
What to verify: Before declaring containment complete, verify that the agent cannot still act through any connected tool, delegated grant, or cached credential. If one of those paths remains live, the incident is not contained even if the account itself is disabled.
Decision rule: If the issue involves autonomous execution or tool use, treat containment as a control-path problem first and an account problem second. If it is only a benign identity record with no delegated runtime authority, a standard account-focused runbook may be sufficient.
What good looks like: The agent can no longer call tools, trigger workflows, reach downstream systems, or reuse valid access material, and responders can explain exactly which path was removed and which checks confirmed it.
Practitioner takeaway: The safest runbook is the one that removes execution authority, not just login access, because AI agents can remain operational wherever delegated paths are still alive.
