Why do Intune migrations create privilege management gaps?

Why This Matters for Security Teams

Intune migrations often expose privilege gaps because endpoint control and access control are not the same problem. A device management move can preserve enrolment and compliance while silently changing how local admin rights, support exceptions, and break-glass access are granted. That matters because NHI-style privilege drift appears whenever access is inherited from old tooling instead of being explicitly re-authored. NHI Mgmt Group notes that 97% of NHIs carry excessive privileges, which is a strong signal for how quickly implicit access becomes over-broad at scale, and the same pattern shows up in endpoint administration.

For teams planning a migration, the real issue is not whether Intune can manage devices, but whether it can represent every privileged path that existed before the cutover. That includes temporary elevation, app-specific admin needs, third-party support, and workflows that were never documented. Guidance in the Ultimate Guide to NHIs — Key Challenges and Risks maps closely to this problem, because governance debt becomes visible only when control boundaries change. In practice, many security teams encounter privilege escalation after migration not during planning, but after users and support staff have already adapted to the new endpoint model.

How It Works in Practice

During an Intune migration, old privilege constructs can fail in three ways. First, legacy local admin grants may not translate cleanly into the new policy set, so users lose access and support teams improvise workarounds. Second, exceptions that were once embedded in helpdesk scripts or device images may disappear because they were never codified as policy. Third, temporary elevation paths can become too broad if administrators recreate them hastily to avoid outage.

The practical fix is to inventory privileged use cases before migration, then re-authorise them as explicit rules rather than carrying them forward as assumptions. That means documenting who needs elevation, for what task, on which device class, for how long, and with what approval evidence. Best practice is evolving, but current guidance suggests aligning this work with the principles in the OWASP Non-Human Identity Top 10 and with Zero Trust-style verification in the NIST Cybersecurity Framework 2.0. The same discipline applies to service accounts, support automation, and scripts that now interact with managed endpoints.

Security teams should also validate whether their old control model depended on local admin standing access. If so, migration is the right moment to replace that with just-in-time elevation, scoped admin roles, and device compliance checks that are evaluated at request time. The NHI Lifecycle Management Guide is useful here because the same lifecycle logic applies to privilege grants: issue narrowly, monitor continuously, and revoke fast. These controls tend to break down when a migration spans hybrid estates with inconsistent device baselines, because policy logic and endpoint state no longer match.

Common Variations and Edge Cases

Tighter privilege control often increases support overhead, requiring organisations to balance speed of remediation against the risk of reintroducing standing access. That tradeoff is especially visible when engineers, finance users, or field staff need elevated rights for legitimate business tasks.

There is no universal standard for this yet, but several edge cases recur. Shared kiosks and lab devices may need different elevation rules from corporate laptops. Legacy applications can require local admin rights even when the business process does not. Contractors and third-party support often create the biggest gap because their access may sit outside the endpoint policy model entirely. The Top 10 NHI Issues and the Ultimate Guide to NHIs — Regulatory and Audit Perspectives are both relevant because migrations create audit exposure when access paths are no longer explainable. The safest pattern is to treat every pre-existing exception as temporary until it is re-approved under the new operating model.

In short, Intune migration gaps are usually not caused by Intune itself. They appear when organisations assume endpoint management will preserve privilege semantics that were actually tied to legacy tooling, informal support practice, or undocumented exceptions.

Related resources from NHI Mgmt Group

• Why do workload identities create governance gaps in platform environments?
• Why do non-human identities create more audit risk than human accounts?
• Why do non-human identities create audit risk in modern environments?
• How should organizations prioritize environments for NHI management?