How should security teams run access reviews for Intune without relying on manual reviewer decisions?

Security teams should automate access reviews with a clear owner, a named primary reviewer, and a fallback reviewer so the process keeps moving if someone is unavailable. They should scope the review with filters, predefine remedial actions for modify or revoke decisions, and end with an audit-ready report that proves the review was completed.

Why This Matters for Security Teams

Access reviews for Intune should not depend on a human reviewer making ad hoc judgments from a long entitlement list. For device administration, conditional access, and endpoint management, the real risk is not just who has access today, but whether review decisions are consistent, timely, and defensible when an account is tied to automated administration. Current guidance from the OWASP Non-Human Identity Top 10 and NIST control families points toward repeatable entitlement governance rather than subjective exception handling.

NHIMG research shows why this matters: Ultimate Guide to NHIs notes that only 5.7% of organisations have full visibility into their service accounts, while 97% of NHIs carry excessive privileges. That pattern translates directly into Intune reviews when service principals, automation accounts, or delegated admin roles are left to manual interpretation. In practice, many security teams encounter over-provisioned Intune access only after a stale permission, failed offboarding, or device-wide change has already created operational risk.

How It Works in Practice

The most reliable model is to treat the review as an automated entitlement workflow, not a meeting. Start by defining the review scope in advance: which Intune roles, app registrations, service principals, and delegated admin assignments are included, and which are excluded by policy. Then bind each review to a named owner, a primary reviewer, and a fallback reviewer so the workflow continues even when a responder is unavailable. This aligns with the lifecycle approach described in the NHI Lifecycle Management Guide.

Instead of asking a reviewer to decide from scratch, present contextual signals: last sign-in, role age, privileged actions performed, device scope, and whether the account is tied to a known automation job. That makes the decision easier to standardize as keep, modify, or revoke. For Intune-specific environments, a practical pattern is to predefine remediation actions for each outcome so a revoke decision can trigger removal, a modify decision can reduce scope, and a keep decision can be logged with justification. NIST’s SP 800-53 Rev. 5 Security and Privacy Controls supports this kind of repeatable access governance through access review, accountability, and auditability controls.

• Use filters to isolate high-risk Intune entitlements before review begins.
• Prepopulate reviewer context so decisions are based on evidence, not memory.
• Auto-escalate unresolved items to the fallback reviewer before the review window closes.
• Send approved changes into the ticketing or IAM system for execution, not manual follow-up.
• Generate a completion report that records scope, reviewer, timestamps, outcomes, and remediation status.

This approach reduces decision fatigue and keeps the audit trail intact, which is essential when access reviews cover distributed admin roles or accounts shared across endpoint operations, help desk, and automation. These controls tend to break down when Intune access is embedded in nested groups or shared operational accounts because reviewer context becomes ambiguous and ownership is no longer clear.

Common Variations and Edge Cases

Tighter review automation often increases setup overhead, requiring organisations to balance speed against the quality of their entitlement data. That tradeoff is real in Intune because some roles are directly assigned, while others flow through groups, inherited administrative units, or automation identities. Best practice is evolving, but current guidance suggests reviewers should see the effective access path, not just the final role assignment, otherwise a manual decision can be technically correct and operationally useless.

One common edge case is service accounts used for device compliance or app deployment. Those should not be treated like human admin accounts, because the review question is usually whether the workload still needs the privilege, not whether a person still wants it. Another edge case is emergency access. If a break-glass account exists for Intune administration, it should be reviewed on a separate cadence with stronger evidence requirements and tighter logging. The NHIMG State of Non-Human Identity Security research shows why this discipline matters: 85% of organisations lack full visibility into third-party vendors connected via OAuth apps, and that visibility gap often mirrors the blind spots that make access reviews unreliable.

For teams using separate identity governance or ITSM tooling, the main goal is consistency. If a reviewer has to interpret every case manually, the process is already too fragile for scale. In complex environments, the review should answer one question only: does this Intune entitlement still match an approved operational need?

Related resources from NHI Mgmt Group

• How should security teams map cloud access controls to regulatory frameworks without relying on manual spreadsheets?
• How should security teams manage unmanageable applications without relying on blanket bans or manual reviews?
• How should security teams run access reviews for non-human identities?
• How should security teams run quarterly access reviews without creating reviewer fatigue?