Accountability should sit with the teams that own the systems and the identity controls that govern them. Security can define the hygiene standards, but operations, application owners, and IAM teams must share the evidence flow that proves accounts are still valid and properly governed.
Why This Matters for Security Teams
continuous identity hygiene fails fastest when ownership is vague. Security can define the control baseline, but the people closest to the system must prove that service accounts, API keys, certificates, and other secrets are still needed, still scoped correctly, and still rotated on time. That is why the operational burden cannot sit with IAM alone. NHI Management Group notes that only 5.7% of organisations have full visibility into their service accounts in the Ultimate Guide to NHIs, which makes accountability a practical control, not a governance slogan. The same visibility gap shows up in breach analysis like the 52 NHI Breaches Analysis, where weak ownership and stale credentials repeatedly appear as root causes. NIST’s NIST Cybersecurity Framework 2.0 reinforces that governance and asset oversight are shared responsibilities, not a security-only activity. In practice, many security teams encounter expired or overprivileged identities only after an incident review reveals that nobody owned the evidence trail.
How It Works in Practice
The cleanest model is a shared-accountability chain. Security defines standards, telemetry, and exceptions. Platform, application, and infrastructure owners prove the identities they create or consume remain legitimate. IAM or identity engineering implements the tooling that enforces policy, collects evidence, and automates checks. That division matters because continuous hygiene is not a quarterly review; it is a recurring proof process.
A workable operating model usually includes:
- asset or service ownership mapped to every non-human identity;
- an explicit review cadence for rotation, expiration, and revocation;
- evidence from vaults, CI/CD, cloud control planes, and ticketing systems;
- exception handling with named approvers and expiry dates;
- metrics that show stale secrets, orphaned accounts, and overdue attestations.
The best source of truth is the system owner, because that team can confirm whether a credential is still needed for production, testing, or a vendor integration. IAM teams should not be expected to guess intent after the fact. Where possible, current practice favours automated signals from secrets managers and cloud logs over manual attestation, but there is no universal standard for this yet. The NHI Management Group Top 10 NHI Issues research shows how often organisations fail when ownership, rotation, and visibility are disconnected. For broader identity program design, the NIST Cybersecurity Framework 2.0 is useful because it ties governance to ongoing protection and detection, rather than one-time provisioning. These controls tend to break down when identities are embedded in ephemeral pipelines with no durable service owner, because nobody remains accountable once the deployment is complete.
Common Variations and Edge Cases
Tighter accountability often increases operational overhead, requiring organisations to balance faster delivery against stronger proof of identity legitimacy. That tradeoff becomes visible in environments with heavy DevOps automation, vendor-managed integrations, or shared platform teams. In those settings, the question is not only who owns the account, but who can evidence its continued need when the code path changes weekly.
Best practice is evolving for delegated ownership models. For example, an application team may own the credential lifecycle for its service account while a central IAM team owns the policy, vault integration, and audit reporting. Similarly, a third-party integration may require the business owner to approve continued access even if a vendor operates the workload. That split is sensible, but it only works if revocation authority is unambiguous. If the account is orphaned, shared across multiple squads, or hidden inside a CI/CD template, accountability becomes diffuse and hygiene degrades quickly.
One useful rule is that whoever benefits from the identity should be able to justify it, and whoever can revoke it should be able to show the evidence. That is the operational bridge between policy and enforcement. When organisations skip that bridge, the result is usually stale access, delayed offboarding, and unclear exception ownership, especially in fast-moving cloud and multi-team delivery environments.
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 CSF 2.0 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-03 | Continuous hygiene depends on rotation and revocation of non-human credentials. |
| NIST CSF 2.0 | GV.RM | Shared accountability is a governance and risk management requirement. |
| NIST CSF 2.0 | PR.AA | Identity management controls rely on accurate authorization and lifecycle evidence. |
Assign an owner for each NHI and enforce recurring rotation, expiry, and revocation checks.
