Managers usually approve because the review process gives them too little context to make a confident decision. Technical labels, missing business rationale, and no visible risk cues push them toward familiarity-based approval. The problem is not disengagement. It is that the workflow asks for judgment without supplying the information judgment requires.
Why This Matters for Security Teams
Access reviews fail when approvers are asked to judge entitlement risk without the business context that made the access request legitimate in the first place. That is especially true for non-human identities, where technical labels such as service account names, API scopes, and vault paths do not reveal what the workload actually does. The result is predictable: managers default to familiar approvals, even when they cannot explain the access in operational terms.
This is not just a paperwork problem. Weak review quality contributes to excess privilege, stale access, and delayed revocation, all of which expand blast radius when credentials are misused or exposed. NHIMG’s Ultimate Guide to NHIs notes that 97% of NHIs carry excessive privileges, which is why a manager-facing review screen needs more than raw entitlement text. The same theme shows up in the OWASP Non-Human Identity Top 10, where visibility and lifecycle control are central governance issues.
In practice, many security teams encounter privilege creep only after an audit finding, an incident, or a failed access review rather than through intentional control design.
How It Works in Practice
Managers approve access they do not understand because the review workflow usually optimises for speed, not decision quality. A useful review package should translate technical entitlements into business-readable context: what system the workload supports, why the access exists, what data or action it can reach, when it was last used, and whether the entitlement is temporary or standing. Without that translation layer, approval becomes a guess.
For NHI governance, the best practice is to pair identity data with workload context and lifecycle state. That means reviewers should see whether the account is tied to a production deployment, a CI/CD job, a third-party integration, or a dormant integration left behind after a project ended. It also means showing signals such as last authentication time, rotation age, privilege scope, and whether the secret is stored in a managed vault or embedded elsewhere. NHIMG’s Lifecycle Processes for Managing NHIs is useful here because the approval decision only makes sense when tied to creation, use, rotation, and offboarding.
- Translate technical entitlements into plain-language business purpose.
- Show risk cues such as excessive privilege, stale use, and missing rotation.
- Require an owner who can attest to necessity, not just a manager who recognises a team name.
- Use periodic reviews to catch standing access that should have been JIT or removed entirely.
Current guidance suggests aligning review evidence with the governance model in NIST Cybersecurity Framework 2.0, especially where access decisions must support accountability and continuous monitoring. These controls tend to break down in highly automated environments where thousands of machine identities change faster than reviewers can interpret the context.
Common Variations and Edge Cases
Tighter approval logic often increases operational overhead, requiring organisations to balance review depth against business speed. That tradeoff is real, especially when a single manager is asked to approve access for multiple applications, vendors, or service accounts with different risk profiles.
There is no universal standard for this yet, but current guidance suggests using different approval paths for different access types. A low-risk internal job may only need owner attestation and automated evidence, while a production secret or cross-domain integration should require stronger justification, documented expiry, and a second control such as PAM or policy-based approval. For agentic or autonomous workloads, the question changes again: approval should focus on what the workload is authorised to do at runtime, not just who provisioned it.
Edge cases also matter. Merged teams, inherited ownership, and vendor-managed integrations often create approvals that look legitimate on paper but have no current operational sponsor. In those cases, the safest response is to pause approval until ownership is reassigned, not to assume the request is valid because it resembles past access. NHIMG’s Top 10 NHI Issues and the 52 NHI Breaches Analysis both reinforce the same lesson: reviews fail most often when ownership, visibility, and expiry are treated as optional.
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 CSF 2.0 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-01 | Review quality depends on visibility into NHI purpose and privilege scope. |
| NIST CSF 2.0 | PR.AC-4 | Approvals should reflect least privilege and account governance. |
| NIST CSF 2.0 | ID.AM-2 | Managers need an accurate inventory context to judge access properly. |
Expose business context, ownership, and entitlement scope before asking for approval.
Related resources from NHI Mgmt Group
- Why do password managers still need strong governance if they use end-to-end encryption?
- What mistakes do teams make when they treat password managers as optional convenience tools?
- Why do access reviews often approve access that should be removed?
- How should security teams run access reviews for non-human identities?
