Who should be accountable for approving access requests in a policy-driven model?

Accountability should be shared, but the approval path must be explicit. IT can operate the workflow, while application owners, security, legal, or managers approve requests based on policy and risk. The important control is not who clicks approve, but whether the organisation can show defined approvers, conditions, and outcomes for each request.

Why This Matters for Security Teams

Accountability for access approval is not just an administrative detail. It determines whether policy-driven access can be defended during an audit, incident review, or dispute. When approval authority is unclear, organisations usually end up with informal workarounds, shadow approvers, or “everyone assumed someone else reviewed it” failures. The right model makes approvers explicit, ties them to risk, and preserves evidence of why a request was approved or denied.

This is especially important for non-human identities, where access can be broad, persistent, and easily overlooked. NHI Management Group research shows that 97% of NHIs carry excessive privileges and only 5.7% of organisations have full visibility into their service accounts, which makes weak approval governance more than a paperwork issue. The same pattern appears in broader identity programs, where policy language exists but ownership is ambiguous. Current guidance from OWASP Non-Human Identity Top 10 and the NIST Cybersecurity Framework 2.0 both reinforce that governance must be assignable, reviewable, and consistently enforced.

In practice, many security teams discover approval gaps only after a privileged request has already been granted and no one can explain why.

How It Works in Practice

In a policy-driven model, accountability is shared across the process, but the approval roles are assigned in advance. IT usually operates the workflow platform, enforces routing, and maintains the audit trail. Application owners approve access to systems they own, managers may approve business justification, security validates risk thresholds, and legal or compliance may review regulated use cases. The key is that policy defines who approves what, under which conditions, and with what evidence.

That distinction matters because approval authority should follow risk ownership, not convenience. For example, low-risk read-only access may route to a manager or app owner, while privileged access may require security review, separation of duties, or time-bound JIT approval. A mature program also links approvals to workload or identity context, so the request is assessed at runtime instead of by static role alone. That approach aligns with the governance direction in the Ultimate Guide to NHIs and with control expectations in NIST SP 800-53 Rev. 5 Security and Privacy Controls.

• Define approver classes by risk tier, system criticality, and data sensitivity.
• Document escalation paths when the primary approver is unavailable.
• Separate request submission, approval, and provisioning duties where feasible.
• Log the policy decision, approver identity, timestamp, and justification for each request.
• Review approval exceptions periodically to identify recurring policy gaps.

These controls tend to break down when approval logic is embedded in ticket comments or email chains, because the decision becomes hard to prove, automate, or audit consistently.

Common Variations and Edge Cases

Tighter approval controls often increase workflow overhead, requiring organisations to balance speed against assurance. That tradeoff becomes visible in emergency access, cross-functional projects, and vendor-supported operations, where multiple approvers can slow delivery if the policy is too rigid. The practical answer is not to remove accountability, but to tier it.

For high-risk access, best practice is evolving toward explicit policy-based routing, short-lived approval windows, and time-bounded access review. For lower-risk access, some organisations allow manager approval or pre-authorised policy groups. There is no universal standard for this yet, but current guidance suggests that the approver should be the person or function with the clearest risk ownership, not merely the most convenient reviewer. The Ultimate Guide to NHIs — Regulatory and Audit Perspectives is useful here because auditors typically care less about titles than about traceable authority, consistent enforcement, and retained evidence.

Special cases also matter. Third-party access may require vendor management approval, privileged production changes may need security sign-off, and emergency break-glass access should have post-event review rather than pre-approval. In all cases, the policy should make the approval chain explicit enough that a reviewer can reconstruct who approved, why, and under which control objective. That becomes especially important in environments with heavy automation or shared service accounts, where approval failure can silently expand privilege over time.

Related resources from NHI Mgmt Group

• What breaks when access requests are not linked to policy and workflow controls?
• Who is accountable when access is granted through policy-driven automation?
• Who should own emergency access decisions in a policy-driven model?
• Who should be accountable for approving access when requests are routed through self-service workflows?