By NHI Mgmt Group Editorial TeamBased on Zluri: “Why (Automated) User Access Reviews Are Important” (March 14, 2026)

TL;DR: Manual access reviews often fail because organisations can show activity but not evidence, leaving audit gaps, lingering access, and remediation uncertainty, according to Zluri. Systematic reviews turn access governance into provable security, compliance, and cost control rather than spreadsheet-driven guesswork.


At a glance

What this is: This analysis argues that automated user access reviews close the gap between policy and proof by turning access governance into evidence auditors can verify.

Why it matters: It matters because IAM, IGA, PAM, and compliance teams need access decisions to be provable, not merely performed, especially across employees, contractors, and partners.

By the numbers:

  • 91% of compliance and security leaders said access reviews are critical for compliance.
  • 77% of organisations plan to implement or improve their access review processes within the next year.

Context

Automated user access reviews are a governance mechanism for checking whether each person still needs the access they have. In this article, the issue is not the existence of a review process but the evidence problem that emerges when reviews are manual, fragmented, and hard to prove.

For IAM and IGA programmes, that proof gap matters because auditors, security teams, and finance leaders all want different forms of validation from the same process. The article frames access reviews as a control that should surface inappropriate access, but only automation makes the result durable enough for compliance, remediation, and cost control.


Key questions

Q: Why do manual access review reports fail in practice?

A: Manual reports fail because reviewers must reconcile apps, identities, permissions, and remediation actions while the environment keeps changing. That creates errors, missed entitlements, and inconsistent evidence. The result is a report that may document activity but cannot reliably prove governance outcome or control effectiveness.

Q: Why do access reviews matter so much in regulatory compliance programmes?

A: Access reviews are where policy becomes operational. They expose whether people, service accounts, and other identities still need the access they have, and they create the record auditors expect to see. Without them, compliance programmes often rely on stale assumptions rather than current entitlement reality.

Q: How do organisations know whether access reviews are working?

A: Access reviews are working when they lead to timely removals, reduced exception volume, and role definitions that stop accumulating unused rights. If the same accounts keep reappearing with the same excess access, the review process is only producing paperwork. Evidence of change is the real success signal.

Q: What should teams do when review findings are not remediated?

A: Escalate unresolved exceptions before the review is closed and require confirmation that the access change took effect in the target system. A review that ends with an open ticket is not a completed control, it is only a documented concern.


Technical breakdown

Why manual access reviews fail at the evidence layer

Manual access reviews usually produce partial artefacts such as spreadsheets, email approvals, and tickets that suggest work happened but do not establish a complete control record. The technical weakness is not review intent but weak traceability: missing dates, missing approvers, missing remediation closure, and inconsistent coverage across applications. In governance terms, the review exists as a process event, not as a verifiable control outcome. That distinction matters because auditors and security teams need a repeatable evidence chain, not an assumption that someone looked at the list.

Practical implication: treat evidence capture as part of the control design, not an afterthought.

How automated access reviews create a provable control trail

Automation changes access reviews from a manual reconciliation exercise into a system-generated workflow with timestamps, reviewers, decisions, and remediation states attached to each access item. That makes the control auditable because the proof is created as part of execution rather than reconstructed later. The article’s core point is that systematic reviews replace assumptions with evidence across employees, contractors, partners, and applications. For identity governance teams, the important shift is from reviewing access informally to producing a durable certification record that can stand up to audit and investigation.

Practical implication: require every review outcome to produce named approvers, dates, and remediation status.

Why access review quality depends on remediation, not just certification

A completed review is not the same as a completed control if violations remain open. The article repeatedly separates access validation from actual remediation, which is where many programmes lose effectiveness. A review that identifies excess access but does not revoke it leaves the security exposure in place and turns the exercise into documentation theatre. In practice, the useful control is a closed loop: validate access, record the decision, and confirm the entitlement changed where required. Without that loop, the organisation cannot show security improvement, only administrative activity.

Practical implication: tie certification outcomes to enforced remediation before the review is considered closed.


Threat narrative

Attacker objective: The practical objective is to exploit unrevoked or excess access that should have been removed by the review process, then use that persistence to reach sensitive systems or data.

  1. Manual review artefacts accumulate in spreadsheets, email threads, and tickets, but the organisation cannot prove whether inappropriate access was actually identified or removed.
  2. Excess access persists after role changes, project completion, and offboarding because review follow-through is inconsistent or undocumented.
  3. The result is long-lived exposure that can survive until an auditor, investigator, or attacker exposes the gap.
  4. Impact shows up as audit failure, avoidable breach exposure, and wasted SaaS spend rather than a single isolated security event.

NHI Mgmt Group analysis

Proof is now the control, not the paperwork: Manual access reviews fail when they are treated as evidence gathering after the fact instead of evidence generation during execution. The control objective is not to show that a team discussed access, but to show who certified what, when, and how remediation was completed. For identity governance, that makes certification a control record, not an administrative ritual.

Access reviews expose a governance split between detection and enforcement: Organisations often identify excessive access but stop short of verified removal, which leaves the underlying entitlement in place. That is why audit readiness and security improvement diverge when reviews stay manual. The programme problem is not only review coverage, but whether remediation is bound to the certification outcome.

Automated access reviews are an identity evidence layer: They create the durable trail that IAM, IGA, PAM, and compliance teams need when access decisions are challenged months later. The article shows that without formal attestations and tracked closure, review activity cannot be translated into proof. Practitioner implication: design governance around evidence integrity, not reviewer effort.

License waste is a governance signal, not just a finance issue: The same stale access patterns that create audit exposure also inflate software spend. That makes access reviews one of the few controls that can reduce both risk and wasted licence inventory at the same time. For practitioners, this turns access governance into a cross-functional control with security and financial value.

Named concept: access proof gap: This article sharpens the distinction between performing access reviews and producing defensible proof that they changed access outcomes. That gap is where many programmes fail because the organisation can point to activity without showing verifiable control effect. The practitioner takeaway is to judge review maturity by audit artefacts and closure quality, not review volume.

From our research library:

What this signals

Access proof gap: Identity governance fails when organisations treat review completion as the objective instead of proving that access was actually validated and changed. That shifts the control from a governance ceremony into a measurable security outcome, which is the standard auditors and incident responders both expect.

Automated reviews also expose which parts of the access lifecycle are still operating on memory rather than evidence. If managers can approve access but cannot later show closure, the programme is signalling that certification, remediation, and recordkeeping are not yet one control flow.


For practitioners

  • Standardise review evidence capture Require every access certification to record the reviewer, decision, timestamp, and remediation status in a format that can be exported for audit without reconstruction.
  • Bind remediation to certification closure Do not close a review until removed access is confirmed in the target application, especially for former employees, contractors, and dormant privileged accounts.
  • Prioritise high-risk access first Start with admin, production, finance, and third-party access where review failure has the highest breach and compliance impact.
  • Add usage data to every review cycle Use sign-in activity and application usage to separate still-needed access from dormant licences before the next audit cycle.
  • Document named accountability Make each certification owner explicit so auditors can trace who approved access and who accepted any unresolved exception.

Key takeaways

  • Manual access reviews create a false sense of control when teams can show activity but not demonstrate closure, approvers, or remediation.
  • The central weakness is not the absence of review effort but the absence of proof that the review actually changed access.
  • Automated reviews matter because they turn access governance into a durable audit trail that also helps reduce wasted licences and lingering entitlements.

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 addresses the attack and risk surface, while NIST CSF 2.0, CIS Controls v8 and NIST SP 800-53 Rev 5 set the governance and control requirements practitioners need to meet.

FrameworkControl / ReferenceRelevance
OWASP Non-Human Identity Top 10NHI-01 — Improper OffboardingExpired access and missed deprovisioning are central failure modes in the article.
NHI-05 — Overprivileged NHIThe article repeatedly cites excess and admin-level access that should have been caught.
Recommendation — Audit offboarding and certification closures to remove access that should no longer exist. Review standing access for privilege creep and remove rights that exceed role need.
NIST CSF 2.0PR.AA-05 — Access Permissions, Entitlements and AuthorizationsThe article is about proving that access permissions were reviewed and corrected.
Recommendation — Use PR.AA-05 to verify and document access decisions with auditable evidence.
CIS Controls v8CIS-5 — Account ManagementRegular account review and removal of stale access are the article's core controls.
Recommendation — Apply CIS-5 to govern account review, offboarding, and removal of unused access.
NIST SP 800-53 Rev 5AC-2 — Account ManagementThe article centers on periodic review, approval, and removal of accounts and entitlements.
Recommendation — Implement AC-2 to ensure accounts are reviewed periodically and disabled when no longer needed.

Key terms

  • Access Review: A formal process for confirming whether access is still needed and justified. In IAM programs, the review becomes an evidence-bearing control when decisions are recorded, scoped correctly, and traceable to the right reviewer, application owner, or auditor.
  • Certification Evidence: Certification evidence is the documentation used to prove that required controls are actually operating. For cybersecurity regulations, that usually includes access reviews, exception approvals, inventory records, incident logs, and configuration proof retained long enough to support executive sign-off.
  • Remediation Closure: Remediation closure is the point at which a discovered access issue is actually fixed, not just logged. It matters because exposure only falls when stale accounts, excess permissions, or risky connectors are removed, justified, or re-scoped in the live environment.
  • Privilege Creep: Privilege creep is the gradual accumulation of access rights beyond what an identity actually needs. It usually happens when permissions are added for convenience and never removed. For NHIs, privilege creep expands blast radius and makes old credentials far more dangerous than their original purpose suggests.

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NHIMG Editorial Note
Published by the NHIMG editorial team on July 6, 2026.
Updated on October 8, 2026.
NHI Mgmt Group, the independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org