How can security teams tell whether identity governance is working in a utility?

Look for evidence that access reviews are completed on schedule, stale access is removed quickly, and entitlement history is traceable across cloud, hybrid, and legacy systems. If teams cannot prove who approved access, when it changed, and when it was revoked, governance is incomplete. The signal is operational evidence, not policy documentation alone.

Why This Matters for Security Teams

Identity governance in a utility is only working if it can prove that access is granted, reviewed, and removed with enough speed and traceability to survive operational scrutiny. That matters more in utilities because environments often span cloud control planes, plant systems, vendors, and legacy platforms with different ownership models. NIST’s Cybersecurity Framework 2.0 treats governance as an outcomes problem, not a documentation exercise, and that is the right lens here.

For non-human identity exposure, NHI Management Group research shows how often the control gap is measurable rather than theoretical: only 5.7% of organisations have full visibility into their service accounts, while 71% of NHIs are not rotated within recommended time frames. Those numbers from the Ultimate Guide to NHIs show why access reviews alone are not enough if entitlement history and revocation evidence cannot be produced on demand. In practice, many security teams discover governance failure only after an audit request, incident review, or vendor dispute has already exposed the missing evidence.

How It Works in Practice

Security teams should measure governance by asking whether they can reconstruct the full identity lifecycle for any person, service account, API key, or agent in the utility. That means proving who approved access, what business need justified it, when it was last recertified, what changed, and when it was revoked. The Ultimate Guide to NHIs — Lifecycle Processes for Managing NHIs is useful here because it frames governance as an end-to-end lifecycle, not a one-time provisioning event.

Operationally, the strongest signal is evidence from multiple systems that aligns to the same identity record:

• Joiner, mover, and leaver workflow timestamps that tie back to ticketing or approval records.
• Access review outcomes showing both attestation and removal for stale privileges.
• Secret rotation or key revocation logs with timestamps and ownership.
• Cross-system reconciliation across cloud IAM, PAM, SCADA-adjacent tooling, and legacy directories.
• Exception handling records for break-glass or emergency access, including expiry.

For utilities, this also means treating NHIs as first-class governance objects. The Top 10 NHI Issues research highlights recurring failures such as excessive privilege, poor rotation, and weak visibility. NIST CSF 2.0 reinforces the need to identify assets, protect them, and monitor for drift rather than assuming that a quarterly review closes the loop. When governance is working, teams can answer questions without hunting across spreadsheets and tribal knowledge, and they can do it for both human and machine identities. These controls tend to break down when legacy OT platforms cannot emit usable audit logs because entitlement changes are opaque or manual.

Common Variations and Edge Cases

Tighter governance often increases operational overhead, requiring utilities to balance stronger proof of control against the need to keep critical systems available. That tradeoff is real in outage recovery, vendor maintenance windows, and plant-floor exceptions, where rigid processes can slow restoration work if they are not designed carefully.

Current guidance suggests that the most reliable programs do not rely on a single review cadence. Instead, they use risk-based reviews for high-impact accounts, JIT access for temporary elevated privileges, and automatic expiry for secrets and tokens. This is especially important where third parties connect through service accounts or OAuth apps, because broad approval lists can hide long-lived access paths. NHI Management Group’s research shows how common that blind spot is, and the State of Non-Human Identity Security is particularly relevant when evaluating vendor-connected access.

There is no universal standard for proving governance maturity in every utility, but the practical test is consistent: if an identity can be approved but not traced, or revoked but not verified, governance is incomplete. In mature environments, evidence is continuous and searchable, not assembled after the fact.

Related resources from NHI Mgmt Group

• How can security teams tell whether automation is helping or harming identity governance?
• How can security teams tell whether identity fabric is working?
• How can IAM teams tell whether identity governance is actually working?
• How do security teams know whether machine identity governance is working?