Because the process usually asks people to approve or revoke access without enough evidence to judge risk. When reviewers cannot see usage, business context, or how access compares with peers, they default to the safest administrative option. That creates a documentation exercise, not a privilege-reduction control.
Why Access Reviews Drift Into Compliance Theater
Access reviews are supposed to reduce privilege, but they often reward paperwork over judgment. When reviewers are asked to approve or revoke access without usage history, ownership context, or peer comparison, the safest choice is usually to sign off. That turns a risk control into an audit artifact, even when the process is mapped to a control set such as the NIST Cybersecurity Framework 2.0 or the NIST SP 800-53 Rev 5 Security and Privacy Controls.
The problem is usually not the review itself, but the evidence model behind it. If the business cannot explain why access exists, who uses it, and whether it is still needed, reviewers are forced to make binary decisions with too little signal. NHIMG’s Ultimate Guide to NHIs shows how often privilege sprawl and weak visibility undermine identity governance, especially where secrets and service accounts are involved. In practice, many security teams discover excessive access only after a failed audit or an incident, rather than through a disciplined review cycle.
How Reviews Become Useful Risk Decisions
A review becomes a risk control when it is tied to evidence that helps the reviewer judge necessity, sensitivity, and anomaly. That means the workflow should surface last-used timestamps, transaction logs, owner attestations, and whether the entitlement matches the person’s or workload’s current role. The reviewer should not have to guess. When access belongs to a non-human identity, the bar is even higher because the right question is often whether the credential should exist at all, not whether a human manager recognizes the name.
Current guidance suggests that access recertification should be paired with entitlement analytics, lifecycle ownership, and automated remediation rather than treated as a stand-alone checkbox. NHIMG’s Lifecycle Processes for Managing NHIs is useful here because it frames revocation, rotation, and offboarding as ongoing control activities, not periodic clean-up. For identity governance programs, the practical sequence is:
- Identify the asset or identity owner who can justify access.
- Show recent usage, privilege level, and blast radius before review.
- Flag dormant, over-privileged, or orphaned accounts automatically.
- Require revocation or step-down when justification is weak.
- Track exceptions separately so they do not become permanent.
When this is working well, reviewers are making decisions from evidence, not habit, and the control actually reduces exposure. These controls tend to break down in large enterprises with poor asset inventory, because nobody can reliably connect entitlements to real business use.
Where the Control Breaks Down and What to Change
Tighter review requirements often increase operational overhead, so organisations have to balance stronger risk decisions against reviewer fatigue and remediation capacity. That tradeoff is real, especially in environments with thousands of entitlements, frequent joins and moves, or many shared service accounts. The answer is not more review frequency by itself. It is better scoping, better evidence, and better automation.
There is no universal standard for exactly how much evidence a reviewer must see, but best practice is evolving toward continuous entitlement monitoring and contextual sign-off. For example, a quarterly review of a dormant API key is not very useful if the key has no owner, no usage telemetry, and no expiry date. In that case, the control should be automatic rotation or removal, supported by a process that aligns with the OWASP Non-Human Identity Top 10 and the broader findings in NHIMG’s 52 NHI Breaches Analysis.
Access reviews also become performative when they are disconnected from remediation. If revocations are not enforced, exceptions are not time-bound, and owners are not accountable for re-approval, the review only documents unresolved risk. That is why mature programs treat reviews as one input into a larger governance loop, not the control itself.
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 address the attack and risk surface, while NIST CSF 2.0, NIST SP 800-63, NIST AI RMF and NIST Zero Trust (SP 800-207) set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST CSF 2.0 | PR.AC-4 | Access permissions should be reviewed and adjusted based on current need, not paperwork. |
| OWASP Non-Human Identity Top 10 | NHI-03 | Overprivileged or stale non-human identities are a common reason reviews fail as risk controls. |
| NIST SP 800-63 | IAL2 | Identity proofing and binding matter when reviewers must trust who owns the access. |
| NIST AI RMF | Risk governance requires evidence, accountability, and monitoring rather than checkbox approvals. | |
| NIST Zero Trust (SP 800-207) | PL.PP-2 | Zero Trust favors continuous verification over periodic trust-by-attestation. |
Apply GOVERN and MAP functions to define ownership, evidence standards, and escalation paths for reviews.
