Who should own access reviews for agent identities in Entra ID?

Who should own access reviews for agent identities in Entra ID?

Access reviews for agent identities should sit with the identity or platform team that can verify the ownership chain, delegated authority, and downstream use of the account. The reviewer needs to assess the agent identity, the human or team behind it, and any related service or application object together, because reviewing only one of those objects leaves governance gaps.

What the ownership model needs to capture

An agent identity in Entra ID is not just a login object, it is part of an operational chain that usually includes a sponsor, a workload or app registration, permissions, and an intended business function. That is why the owner of the review must be able to answer practical questions such as who created it, who can approve changes, which automation depends on it, and whether the access still matches the current use case.

In practice, the right owner is usually the same team that already governs access reviews, entitlement quality, and identity lifecycle decisions. IAM and IGA Basics is the clearest starting point for the control logic behind that decision, because it ties access review to governance, least privilege, and lifecycle ownership rather than to application convenience.

For Entra ID specifically, the ownership question should be anchored in the directory control plane, not in whichever team happens to use the agent. Entra ID Security Guide is useful here because it frames tenant-level hardening, protected actions, and workload identity governance as directory responsibilities that need clear administrative ownership.

Why agent access reviews fail when ownership is vague

Agent identities are easy to over-trust because they are often created to solve a narrow business problem, then kept alive long after the original use case changes. When ownership is unclear, the review process tends to degrade into a checkbox exercise: someone approves the account because it looks familiar, not because they can validate the current authority, scope, or necessity.

That failure mode is especially dangerous for agent or service-style identities, which can accumulate permissions, persist across projects, and continue acting after the original sponsor has changed role or left. NHI Lifecycle Management Guide is relevant because it treats provisioning, rotation, offboarding, and visibility as one lifecycle problem, which is exactly what access reviews need to reflect.

There is also a practical security reason to include the principal behind the agent and the related application object. If a review only looks at the visible agent identity, it can miss a hidden source of authority such as a service principal, app registration, or delegated consent path. That is where the review should be broadened to the full object chain, not narrowed to the most visible label.

How to assign the review in a way that actually governs access

The best reviewer is the team that can prove object ownership and challenge the access if the justification is weak. In most Entra ID environments that means identity engineering, IAM, or platform operations, with application owners providing business context and managers or sponsors validating the use case where a human-backed workflow exists.

A clean ownership model usually works in three layers: the identity team owns the review process and the directory object; the application or service owner confirms whether the agent still needs the permissions; and the business sponsor or system owner confirms whether the function still matters. That split prevents the common error of asking a downstream consumer to certify an object they do not control.

When the review scope includes agents, the reviewer should also be able to judge whether access is active, dormant, or reusable across environments. Access Reviews and Certification Guide supports that operational model because it focuses on reducing review volume, adding context, and closing the loop on removal rather than merely collecting approvals.

For agent-specific governance, it is also reasonable to align the review with the same ownership and lifecycle discipline used for non-human identities. Identity Governance for AI Agents Guide is directly relevant to the ownership question because it ties agent ownership, lifecycle management, access reviews, and offboarding into one governance model.

Practitioner Guidance

What to verify: Before the review starts, confirm that each agent has a named owner, a sponsor or accountable team, and a clearly linked service or application object. If any of those are missing, treat the review as incomplete until the ownership chain is rebuilt.

Decision rule: If the reviewer cannot explain why the agent still needs its permissions in current operations, the default action should be removal or escalation for re-approval, not continued access. If the account is shared across teams, require explicit assignment of one accountable owner before certification proceeds.

What good looks like: The review outcome should produce one clear answer for each agent, keep, reduce, or remove, with evidence of who approved it and why. The useful signal is not review completion, but whether the review changed access in response to stale, excessive, or unowned entitlement.

Practitioner takeaway: Access reviews work only when the reviewer can validate ownership, authority, and actual use. If that chain cannot be proven, the review should be treated as a governance defect, not as a successful certification.

Related resources from NHI Mgmt Group

• Guide: Active Directory and Entra ID Hardening Guide
• How should security teams run access reviews for non-human identities?
• How should security teams govern non-human identities that have persistent access?
• When do NHI access reviews create more value than a one-time cleanup?
• How can organisations reduce the blast radius of compromised agent identities?