Approval should sit with the person or role that owns the risk of the entitlement, usually the application owner, data owner, or a formally delegated control owner. Generic approval chains often fail because they separate decision-making from entitlement knowledge, which weakens accountability and increases the chance of inappropriate access being granted.
Why This Matters for Security Teams
Approval ownership is not a clerical step. It is the control that determines whether access decisions are made by someone who understands the entitlement, the data, and the business risk it creates. When approval is routed through a generic manager chain, the decision often becomes detached from operational reality, which weakens accountability and makes inappropriate access more likely. That risk is even more serious for non-human identities, where entitlement misuse can scale quickly across systems and workflows. NHI Mgmt Group’s Ultimate Guide to NHIs notes that 97% of NHIs carry excessive privileges, which is a strong signal that approval governance is often not aligned to actual entitlement risk. For broader threat context, the OWASP Non-Human Identity Top 10 treats over-privilege and weak lifecycle controls as recurring failure modes. In practice, many security teams discover approval weakness only after an entitlement has already been granted and used, rather than through intentional risk ownership design.
How It Works in Practice
The most reliable model is to assign approval to the role that owns the risk of the entitlement itself, not the requester’s manager by default. That usually means the application owner for system access, the data owner for sensitive datasets, or a formally delegated control owner when the risk is shared across teams. The approval workflow should be built around explicit entitlement metadata: what resource is being requested, what privilege level is involved, what data or system impact it creates, and what expiration or review rule applies.
In mature environments, approval is paired with least privilege and time-bounded access. Requests should include enough context for the owner to decide at runtime, and the decision should be logged with a clear justification so audits can trace accountability. NHI Mgmt Group’s 52 NHI Breaches Analysis shows how poor entitlement discipline often appears alongside weak visibility and delayed revocation. Current guidance from the OWASP Non-Human Identity Top 10 and NHI governance practice suggests approval should be tied to ownership of the asset, not organizational hierarchy.
- Use app, data, or control owners as approvers for their scope of risk.
- Require the request to specify resource, privilege, duration, and business purpose.
- Automate escalation only when the delegated owner is unavailable, with a defined backup.
- Separate approval authority from execution so approvers cannot self-authorise access.
- Review approvals periodically to confirm the owner still matches the entitlement risk.
These controls tend to break down in highly matrixed organizations where entitlement ownership is unclear because no single team can credibly accept the risk.
Common Variations and Edge Cases
Tighter approval ownership often increases process overhead, requiring organisations to balance decision quality against turnaround time. That tradeoff becomes visible when access is urgent, cross-functional, or temporary. In those cases, best practice is evolving rather than fully settled, but the current direction is to use delegated authority with guardrails rather than routing everything through a central queue. For example, a platform team may approve infrastructure access, while a data governance owner approves access to regulated records, and a security control owner handles exceptions.
Edge cases include emergency access, contractor access, and machine-generated requests. Emergency access should use a separate break-glass workflow with after-the-fact review, not bypass ownership entirely. Contractor access often needs a business sponsor plus the system owner, because sponsorship alone does not indicate entitlement risk. Where approval decisions are automated, policy should still map to a human owner for accountability, because the control objective is not just speed but defensible risk acceptance. The Ultimate Guide to NHIs — Key Challenges and Risks reinforces that weak governance usually shows up first as over-permissioning and poor lifecycle control. For NHI-heavy environments, the same principle applies: the owner of the workload or secret should own the approval, unless a formally documented delegate is assigned.
In practice, exceptions work best when they are narrow, time-limited, and explicitly reviewed rather than treated as the new default.
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 | Approval ownership is part of preventing over-privileged NHIs. |
| NIST CSF 2.0 | PR.AC-4 | Access permissions must be approved by accountable owners. |
| NIST AI RMF | GOVERN | Decision accountability is a governance requirement for automated access decisions. |
Tie access approvals to entitlement owners and verify the least-privilege scope before granting access.
