Topic starter
23/03/2026 2:06 pm
TL;DR: Group access reviews often miss stale members, orphaned groups, and excess permissions in hybrid environments, according to Oleria Security, leaving the group layer as a durable path to overexposure, compliance gaps, and lateral movement after credential abuse. Access governance has to move from user-only recertification to group ownership, purpose, and usage validation.
Editorial analysis by NHI Mgmt Group, based on content published by Oleria Security: “Group access reviews: How to review security groups and AD groups at scale”.
By the numbers:
- Credential abuse now accounts for 22% of breaches, according to Oleria Security.
Key questions
Q: What breaks when user access reviews are not in place?
A: Privilege creep, orphaned access, and weak accountability are the first things to break.
Q: Why do over-permissioned groups increase breach impact?
A: Over-permissioned groups turn one valid credential into broader access because every member inherits the group’s rights.
Q: How can security teams tell whether privileged access reviews are actually working?
A: They are working when every privileged entitlement is inventoried, every decision is traceable, and revoked access is removed from all connected systems without delay.
Practitioner guidance
- Establish explicit group ownership Assign a named owner to every security and Active Directory group so reviewers can validate purpose, membership, and entitlement changes against a clear accountable party.
- Document purpose and membership criteria Record why each group exists, what business role it supports, and what conditions justify membership before asking for review approvals.
- Prioritise high-risk groups first Review groups with broad permissions, large membership, or critical resource access before low-risk groups because those are the most likely to drive blast radius.
Bottom line: Group access reviews expose a control gap that user-centric recertification often misses: the group itself can become stale, over-permissioned, or orphaned.
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This topic was modified 6 days ago by NHI Mgmt Group
06/10/2026 7:19 pm
Group access review failure is really identity drift at the authorisation layer: the review process may still run, but the object being reviewed no longer reflects the business it was meant to protect. When membership, purpose, and permission scope diverge, the control produces paperwork without restoring least privilege. The practitioner conclusion is that groups must be governed as living access constructs, not static containers.
A few things that frame the scale:
- Over 70% of organisations lack automated access risk analysis, user access reviews and provisioning and deprovisioning, according to Pathlock's 2025 Digital Transformation and Access Risk Report.
A question worth separating out:
Q: What is the difference between user access reviews and group access reviews?
A: User access reviews ask whether a person still needs access. Group access reviews ask whether the group still has a valid business purpose, whether the right people are in it, and whether the group has more permissions than it should.
👉 Read our full editorial: Group access reviews expose identity drift in hybrid environments