Remote work increases the number of applications, devices, and collaboration paths that can carry access. That makes reviews less reliable when the review scope depends only on the directory and not on shadow SaaS or downstream entitlements. Teams need evidence of actual application use, not just named assignments.
Why This Matters for Security Teams
Remote work makes access reviews less reliable because the evidence set becomes fragmented. A reviewer can see a directory assignment and still miss the real access path through shadow SaaS, federated logins, synced collaboration tools, or downstream entitlements created outside the identity provider. That gap matters because access reviews are supposed to validate whether access is still needed, not just whether an account still exists.
The control problem is visibility, not policy intent. In distributed work, employees often use multiple endpoints, browser sessions, and collaboration platforms that can all carry active access. NHI Management Group’s Ultimate Guide to NHIs notes that only 5.7% of organisations have full visibility into their service accounts, which is a useful proxy for how incomplete identity evidence often is in practice. That same blind spot affects human access reviews when entitlements are spread across systems.
Best practice is to treat directory data as a starting point, not a conclusion. The OWASP Non-Human Identity Top 10 makes the broader point that identity sprawl creates hidden access paths, and remote work amplifies that sprawl across SaaS and collaboration layers. In practice, many security teams discover excessive access only after a privilege incident or audit exception rather than through a clean review cycle.
How It Works in Practice
Reliable reviews in remote environments need evidence of actual use. That means pairing directory entitlements with telemetry from the applications, collaboration tools, and cloud services where work actually happens. Reviewers should confirm not only whether an account is active, but whether the person has used the application recently, whether the access is inherited through group membership, and whether there are downstream grants that the directory does not expose.
A practical review workflow usually includes:
- Exporting directory assignments, then reconciling them with application-level logs and entitlement reports.
- Checking for shadow SaaS and self-service collaboration tools that sit outside formal IAM processes.
- Validating role membership against current job function, team structure, and remote-work tool usage.
- Flagging dormant access by application activity, not just by last password change or last login to the directory.
- Escalating ambiguous cases for manager and application owner confirmation, especially where access is inherited.
This is where lifecycle discipline matters. The NHI Lifecycle Management Guide is relevant because the same offboarding and revocation gaps that affect NHIs also appear in remote human access: if revocation is slow, reviews become a retrospective paperwork exercise. Current guidance suggests combining review results with continuous monitoring, because a quarterly attestation alone cannot reliably capture access that changes through SaaS provisioning, team transfers, or device-based policy drift.
The goal is to prove that access is both assigned and exercised appropriately, using evidence from the place where the work happens. These controls tend to break down in highly federated SaaS environments because downstream entitlements are often invisible to the central directory.
Common Variations and Edge Cases
Tighter review controls often increase operational overhead, requiring organisations to balance assurance against reviewer fatigue and application-owner workload. That tradeoff becomes sharper in remote-first environments where every team may rely on a different stack of collaboration, automation, and cloud tools.
There is no universal standard for this yet, but current guidance suggests treating some environments differently:
- For contractors and hybrid workers, reviews should be shorter cycle and evidence-based because access changes faster.
- For SaaS-heavy teams, application owners often need to co-sign reviews since directory data misses inherited access.
- For engineering and platform teams, remote work can hide privilege through tokens, service integrations, and automation accounts, so a human-only review is incomplete.
- For low-risk business apps, sampled activity evidence may be enough, but only if the app has trustworthy audit logs.
Where remote work is paired with single sign-on, teams sometimes assume centralised authentication equals complete visibility. That is not true when access is delegated into downstream systems or when users retain shared spaces, tokens, or guest access after role changes. The NHI Management Group’s Key Challenges and Risks section is relevant here because the same governance gap appears when identity ownership and entitlement ownership are split across teams. Reviews work best when they are tied to actual usage, not just directory snapshots, and when exceptions are explicitly time-bounded.
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 and NIST AI RMF set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST CSF 2.0 | PR.AA-01 | Remote work weakens identity assurance when access evidence is fragmented. |
| OWASP Non-Human Identity Top 10 | NHI-01 | Hidden downstream entitlements mirror the visibility gaps OWASP-NHI warns about. |
| NIST AI RMF | AI RMF supports context-based governance where evidence changes across systems. |
Use contextual evidence and ongoing monitoring to validate access decisions, not one-time attestations.
Related resources from NHI Mgmt Group
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on June 11, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
