Certification becomes a ritual when the review population is too broad and reviewers cannot distinguish meaningful risk from routine entitlement noise. Narrowing scope with risk signals is what turns access review into a control. Without that, campaigns may be completed, but they do not materially reduce privilege exposure.
Why This Matters for Security Teams
Certification matters because it is one of the few recurring checks that can expose privilege creep, orphaned access, and outdated role assignments. It becomes a ritual when reviewers are forced to approve or reject thousands of entitlements without risk context, business ownership, or usage evidence. At that point, the campaign produces completion metrics, not control effectiveness. NIST Cybersecurity Framework 2.0 reminds teams that governance must translate into measurable action, not just documented process.
For non-human identities, the problem is sharper. Service accounts, API keys, and workload tokens often outnumber human identities and change faster than a quarterly review can absorb. NHIMG’s Ultimate Guide to NHIs — Lifecycle Processes for Managing NHIs shows why lifecycle controls, rotation, and revocation have to be tied to actual usage patterns rather than static entitlement lists. Without that, certification becomes an administrative chore that leaves the real attack surface untouched. In practice, many security teams encounter the failure only after an audit passes and a compromised account is found still approved.
How It Works in Practice
Effective certification starts by narrowing the population to what is genuinely worth review. That means separating high-risk access from routine access, then prioritising by factors such as privileged roles, stale accounts, unusual usage, production reach, third-party ownership, and recent authentication anomalies. The NIST Cybersecurity Framework 2.0 supports this kind of risk-based governance, but the operational detail usually comes from identity telemetry and workload context rather than the framework alone.
For NHIs, the review should answer specific questions: is the secret still used, does the workload still exist, has the token been rotated, and does the account retain more privilege than the service actually needs? If the answer cannot be determined, the control should not default to approval. NHIMG’s Top 10 NHI Issues highlights why excessive privilege and poor visibility are central drivers of exposure. In practical terms, certification should be paired with revocation workflows, owner attestation, and evidence of use so that reviewers are validating current necessity, not historical assignment.
A useful pattern is to split reviews into tiers:
- High-risk access: production, admin, cross-environment, or externally exposed credentials.
- Change-triggered access: newly granted, recently escalated, or recently unused access.
- Exception-driven access: temporary approvals, shared accounts, and break-glass paths.
This approach turns certification into a targeted control instead of a blanket approval exercise. It also aligns with NIST Cybersecurity Framework 2.0 by focusing review effort where it can change risk posture. These controls tend to break down in organisations with no authoritative inventory of service accounts and no reliable usage telemetry, because reviewers cannot distinguish active privilege from dormant noise.
Common Variations and Edge Cases
Tighter certification often increases operational overhead, requiring organisations to balance control quality against reviewer fatigue and remediation capacity. That tradeoff is real, especially where identity sprawl is large or ownership is unclear. Current guidance suggests that broad campaigns are acceptable only when paired with strong filtering; there is no universal standard for how much sampling or risk scoring is enough.
Some environments need different treatment. Shared platform accounts may require compensating controls such as dual approval or technical restrictions, since individual attestation is weak. Machine-to-machine access in CI/CD pipelines may need automatic certification based on deployment metadata, because manual reviewers cannot reliably assess short-lived tokens. Third-party NHIs are another edge case: business owners may approve access without understanding downstream privilege, so attestation should be anchored to contract scope and technical evidence.
NHIMG’s Ultimate Guide to NHIs — Regulatory and Audit Perspectives is useful here because it frames certification as part of a broader audit trail, not a standalone event. The practical test is simple: if a reviewer cannot reasonably answer whether access is still needed, the control is not certifying risk, only preserving paperwork.
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 |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-01 | Addresses excess NHI privilege and weak ownership that make certification noisy. |
| NIST CSF 2.0 | PR.AA-01 | Identity governance requires validating who or what has access and why. |
| NIST AI RMF | Risk management should keep governance actions effective and measurable. |
Tie certification to current identity evidence, usage, and business need rather than static entitlement lists.
Related resources from NHI Mgmt Group
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Reviewed and updated by the NHIMG editorial team on June 25, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org