Who should be accountable for key management failures?

Why This Matters for Security Teams

key management failures become accountability failures when ownership is vague, rotation is inconsistent, or evidence of use is missing. That is why NHI governance has to be treated as an operational control, not a background technical task. NHI Management Group’s Ultimate Guide to NHIs — Regulatory and Audit Perspectives frames this as a lifecycle issue: keys must be inventoried, rotated, monitored, and retired with a named owner at each step. The risk is amplified by attacker speed and automation, which is why the LLMjacking research is so relevant to incident response planning. NIST also treats identity and access governance as a core security function in the NIST Cybersecurity Framework 2.0, not an optional add-on. In practice, many security teams discover key ownership gaps only after an exposed credential or failed audit has already made the issue public.

How It Works in Practice

Accountability should sit with the system or service owner because that role controls the business purpose of the key, the scope of its use, and the risk accepted by keeping it active. IAM, PKI, and security operations support that owner, but they cannot replace it. A workable model usually assigns:

• the service owner for business justification and approval of key creation
• IAM or platform engineering for lifecycle enforcement and access policy
• PKI or secrets management teams for issuance, rotation, and revocation mechanics
• security operations for monitoring, anomaly detection, and incident escalation

This division matters because key failure is rarely a single event. It is often the result of missing inventory, weak review cadences, or a system that cannot prove who used a key and why. The NHI Lifecycle Management Guide and Top 10 NHI Issues both point to the same operational pattern: when ownership is fragmented, rotation stalls and secrets linger long after their intended use. NIST SP 800-53 Rev. 5 reinforces this by tying access control, auditability, and configuration management to accountable operation. The practical test is simple: if no one can answer who approved the key, where it is used, and when it must be revoked, accountability is already broken. These controls tend to break down in large multi-cloud environments where service boundaries are unclear and no single team owns the full credential lifecycle.

Common Variations and Edge Cases

Tighter key governance often increases operational overhead, requiring organisations to balance stronger accountability against delivery speed and platform complexity. That tradeoff becomes visible in edge cases. Shared platform keys, legacy application accounts, and vendor-managed integrations can blur ownership, especially when several teams depend on one credential or when a third party generates and stores it. Best practice is evolving, but current guidance suggests the system owner still remains accountable for the risk, even if another team performs the hands-on administration. In outsourced or managed environments, the contract may delegate tasks, but it does not remove accountability from the service owner or control owner.

There is also a difference between operational responsibility and breach liability. Security operations may detect misuse, but they should not be the default owner of a failed rotation process. Similarly, IAM may enforce expiry, but it should not be blamed for a key that was never inventoried or approved properly. The strongest programmes align ownership with evidence: an asset register, rotation logs, approval records, and a documented revocation path. Where keys back agentic workloads or automated pipelines, the expectation is higher because machine speed compresses response time and leaves less room for manual correction. In those environments, accountability breaks down fastest when ownership is split across teams but no one is empowered to make the final revocation decision.

Related resources from NHI Mgmt Group

• Who is accountable when identity enrolment failures block access to public services?
• Who is accountable when Law 25 breach or consent failures occur?
• Key Management
• How should organizations prioritize environments for NHI management?