Ownership should sit with the teams that manage identity, telemetry, and incident response together, because the problem spans authorization, instruction tracing, and data movement. The employee may be the visible account, but the real control issue is the delegated grant. Effective response revokes the grant, preserves evidence, and maps accountability to the delegation chain.
Who owns response when an AI agent is acting under delegated authority?
Ownership should not be assigned to one team alone. The right owner is the cross-functional group that can see the delegation, the agent’s actions, and the evidence trail at the same time: identity, telemetry, and incident response. That framing matters because the delegated grant, not the human user’s account alone, is what must be constrained, revoked, and investigated.
Why delegated authority changes the response model
When an AI agent operates inside a user’s trust boundary, the visible actor can be misleading. The user may have approved access, but the agent may still be exercising a separate delegated capability to call tools, move data, or take actions the user did not directly initiate. Response ownership has to follow that control plane, otherwise teams focus on the wrong account and miss the actual path of authority.
The practical consequence is that response needs to answer three questions quickly: what authority was granted, what the agent actually did with it, and whether the resulting activity stayed inside the intended boundary. That requires joint ownership because identity teams understand grants and revocation, telemetry teams can reconstruct the action path, and incident responders can contain the blast radius.
What a good ownership model needs to cover
The ownership model should treat delegated authority as a first-class security object. That means recording who approved the delegation, what scope was granted, what tools or data the agent could reach, and how long the grant remained valid. If those details are not owned explicitly, response degrades into account-centric cleanup, which is often too late and too broad.
Response also needs an evidence-preservation standard. The team handling the event should be able to freeze logs, preserve prompt and tool-call history where available, snapshot token or credential state, and identify whether the agent’s behavior was permitted, abused, or unexpected. Without that discipline, accountability becomes ambiguous and recovery decisions become guesswork.
Where delegated authority is revocable, the owner must be able to cut off the grant without waiting for a separate business decision on the user account. That is a subtle but important distinction: the user may remain legitimate while the delegation becomes unsafe. The control point is the grant itself, not only the person who initiated it.
Who should coordinate the response workflow
Identity teams should own the delegation state, incident response should own containment and escalation, and telemetry or detection teams should own reconstruction of the sequence. In mature environments, that is usually coordinated through a single incident commander or incident lead who can arbitrate between those functions and avoid duplicate or conflicting actions.
The most useful operating model is a RACI-like split: identity for revoke and scope validation, telemetry for traceability, incident response for containment and communications, and the business or product owner for impact decisions. The key is that none of these functions can independently answer the full question, so no single silo should be expected to close the loop alone.
Risk and Threat Considerations
Delegated authority creates a higher-risk response problem because the attacker, the agent failure mode, or the human mistake can all look like legitimate use at first. The main danger is assuming the user account is the only relevant identity when the more important control question is whether the delegated grant has been abused, expanded, or persisted beyond its intended use.
Failure mechanism: The delegation chain is left intact while teams investigate the visible user account, allowing the agent or an attacker operating through the agent to continue actions, move data, or retain access through cached tokens, long-lived grants, or loosely scoped tool permissions.
Impact: Containment slows down, evidence becomes harder to trust, and the organisation may misattribute actions to the human user instead of the delegated mechanism, which can lead to incomplete remediation and incorrect accountability.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Agentic AI Top 10 and OWASP Non-Human Identity Top 10 address the attack and risk surface, while NIST SP 800-53 Rev 5 sets the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Agentic AI Top 10 | ASI03 — Identity & Privilege Abuse | Delegated agent authority and misuse of trust boundary directly map here. |
| ASI02 — Tool Misuse | Response must inspect how the agent used tools inside the trust boundary. | |
| Recommendation — Revoke delegated privilege and validate whether the agent exceeded its approved authority. Trace tool calls and disable abused actions before restoring access. | ||
| NIST SP 800-53 Rev 5 | AU-6 — Audit Review, Analysis, and Reporting | The answer depends on tracing actions, preserving evidence, and reconstructing the delegation chain. |
| AC-2 — Account Management | Delegated access must be provisioned, scoped, and revoked as part of response ownership. | |
| Recommendation — Correlate logs and preserve audit evidence for the delegated action path. Remove or suspend the delegated access path when containment begins. | ||
| OWASP Non-Human Identity Top 10 | NHI-05 — Overprivileged NHI | Delegated AI authority can become excessive and must be bounded during response. |
| Recommendation — Reduce the agent’s privileges to the minimum required for recovery. | ||
Practitioner Guidance
What to prioritise: Treat the delegated grant as the first containment target, not the employee account. If the grant can be revoked cleanly without disrupting unrelated access, do that before broader credential resets or user-level lockouts.
What to verify: Confirm whether the agent acted within the approved scope, whether it used a fresh approval or stale delegation, and whether any tool calls or data transfers exceeded the expected trust boundary. If you cannot reconstruct those three points, the response is not complete.
Practitioner takeaway: The response owner is whoever can simultaneously revoke authority, reconstruct action, and assign accountability, because delegated AI activity is a control problem about authority chains, not just user accounts.
