Accountability usually sits with the approver, the application owner, and the identity team that owns the revocation process. In regulated environments, the organisation must be able to show who approved the access, when it expired, and how removal was verified.
Why This Matters for Security Teams
Temporary elevated access only works when expiration is enforced, verified, and owned end to end. If revocation slips, the risk is not just policy drift, but lingering privilege that can be reused, chained, or silently inherited by downstream systems. That is why accountable access reviews matter in practice, not just on paper.
For non-human identities, the issue is especially acute because privileged service accounts, API keys, and automation tokens often live longer than the task they were created for. NHI Management Group’s Ultimate Guide to NHIs notes that 71% of NHIs are not rotated within recommended time frames, which makes delayed revocation a predictable control failure rather than an edge case. The OWASP Non-Human Identity Top 10 also treats credential lifecycle weakness as a core risk area.
In practice, many security teams encounter missed revocation only after an audit finding, an access incident, or a production compromise exposes the gap.
How It Works in Practice
Accountability should follow the control path, not just the person who clicked approve. The approver is responsible for justifying the initial elevation. The application or system owner is responsible for defining when access should end and confirming the business task is complete. The identity or PAM team is responsible for the revocation mechanism, monitoring, and evidence that removal actually occurred.
For mature programmes, the cleanest pattern is just-in-time access with short TTLs, workflow approval, and automated expiry. The access grant should be tied to a specific workload, ticket, or change window, then revoked automatically when the window closes. That model aligns with the lifecycle approach described in NHIMG’s NHI Lifecycle Management Guide and the control discipline reinforced in the Lifecycle Processes for Managing NHIs.
- Use approval records that capture who requested, who approved, and what time limit was set.
- Automate expiry where possible, then verify revocation with logs, not screenshots.
- Separate approval authority from technical ownership so no single role can both grant and silently retain access.
- Escalate exceptions when revocation fails, because a failed removal is a control event, not a routine closure.
Current guidance suggests using policy-as-code, PAM controls, and continuous evidence collection so revocation status is checked in real time rather than during a later review. These controls tend to break down in legacy environments with shared admin accounts and manual ticket closures because there is no reliable system-of-record for expiry or removal.
Common Variations and Edge Cases
Tighter revocation controls often increase operational overhead, requiring organisations to balance speed of access against stronger evidence and faster offboarding. That tradeoff becomes most visible during emergency changes, vendor support sessions, and long-running incident response work, where temporary access is often extended informally after the original approval no longer fits reality.
There is no universal standard for this yet, but best practice is evolving toward explicit ownership of three questions: who approved the elevation, who owns the asset, and who verified the removal. In regulated settings, the identity team may operate the revocation workflow, but the business owner still owns the risk of leaving access open. The approver remains accountable for granting the exception, especially when expiry rules are overridden.
This is where the broader secret lifecycle problem shows up. NHIMG’s Guide to the Secret Sprawl Challenge shows how credentials and tokens persist in places that are hard to govern, and NHI cases often fail the same way when no one can prove that the access was actually removed. The result is usually disputed ownership after the fact, not clean operational closure.
For high-risk or automated environments, the better question is not only who is accountable, but whether the workflow makes it impossible to forget revocation in the first place.
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-03 | Covers weak lifecycle controls that leave temporary access active too long. |
| NIST CSF 2.0 | PR.AC-4 | Access permissions must be managed and removed when no longer required. |
| NIST AI RMF | GOVERN | Accountability for automated or AI-driven access decisions requires clear governance. |
Assign owners for approval, expiry, and revocation evidence across the access lifecycle.
Related resources from NHI Mgmt Group
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Reviewed and updated by the NHIMG editorial team on June 12, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
