When amortisation and utilisation are unclear, finance and security teams lose a reliable view of cost, renewal exposure, and unused capacity. That leads to weak forecasting, poor audit readiness, and delayed decisions on right sizing. The practical failure is not just accounting noise, but incomplete governance over software spend and entitlements.
Why This Matters for Security Teams
When amortisation and utilisation cannot be seen clearly, the failure is rarely limited to finance. Security teams lose a dependable picture of which entitlements are active, which licences are idle, and where spend is masking excess privilege or shadow access. That makes it harder to prove least privilege, plan renewals, and identify accounts that should have been removed long before an audit or incident.
This is especially important for NHIs because software licences, service accounts, and API credentials often move together in procurement, operations, and identity workflows. If usage data is fragmented, an organisation may renew capacity that is no longer needed while retaining dormant access that should have been revoked. NIST guidance in NIST SP 800-53 Rev 5 Security and Privacy Controls treats accountability, access control, and auditability as core controls, not accounting afterthoughts.
NHIMG research shows how quickly visibility failures become security failures: in the Ultimate Guide to NHIs, only 5.7% of organisations have full visibility into their service accounts, while 97% of NHIs carry excessive privileges. In practice, many security teams discover wasted licences and overexposed access only after a renewal review, an audit finding, or a breach has already exposed the gap.
How It Works in Practice
The practical fix is to connect contract data, entitlement data, and runtime usage into one governance view. That means mapping each licence or subscription to a business owner, a technical owner, the associated NHI or application, and the renewal date. For security teams, the key question is not just “how many licences are purchased?” but “which identities, workflows, and integrations actually depend on them right now?”
For NHIs, this works best when utilisation is measured at the identity layer, not only through billing reports. A service account, token, or API key may be technically active even if it has low transaction volume. That distinction matters because dormant access can still be highly privileged. Current guidance suggests pairing periodic entitlement reviews with continuous telemetry, so that right-sizing decisions are based on actual use rather than vendor billing summaries alone.
- Link contracts to the exact systems, teams, and NHIs they cover.
- Track licence usage against last-seen activity, not just invoice quantities.
- Flag idle or underused entitlements for reclamation before renewal.
- Reconcile unused capacity with access review and offboarding workflows.
This is where NHI governance becomes operational, not theoretical. If a secret, token, or service account is tied to a paid platform subscription, the renewal cycle should trigger both a cost review and an access review. That alignment is consistent with the visibility and lifecycle emphasis in Schneider Electric credentials breach, where unmanaged credentials and weak oversight illustrated how quickly exposure can spread. These controls tend to break down in hybrid estates with multiple procurement systems, because no single team owns the full picture of spend, entitlement, and runtime usage.
Common Variations and Edge Cases
Tighter contract and utilisation tracking often increases process overhead, requiring organisations to balance governance accuracy against procurement speed and operational flexibility. That tradeoff becomes sharper when licences are bundled, pooled across business units, or consumed by third parties, because the raw count of seats no longer reflects actual risk or value.
Best practice is evolving for shared and dynamic environments. For example, a platform licence may be transferred across teams while the underlying NHI remains unchanged, or an integration may continue using a dormant token even after the associated user population shrinks. In those cases, utilisation metrics should be interpreted alongside access rights, rotation status, and ownership records. There is no universal standard for this yet, so teams should document their own measurement method and apply it consistently.
Coverage gaps are also common when SaaS procurement, cloud ops, and identity governance sit in separate tools. That is why NHIMG’s broader visibility findings matter: only 5.7% of organisations report full service-account visibility, and the same blind spots that hide secrets often hide unused capacity. The result is a false sense of control, where renewals look efficient but entitlements remain overprovisioned in practice.
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 and CSA MAESTRO 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-02 | Visibility gaps hide overprovisioned service accounts and unused entitlements. |
| NIST CSF 2.0 | GV.OV-01 | Oversight of spend, entitlement, and access needs continuous governance reporting. |
| NIST AI RMF | AI risk governance emphasises accountability, measurement, and traceable oversight. | |
| CSA MAESTRO | GOV-03 | Agent and workload governance depends on clear ownership and lifecycle visibility. |
Build a recurring governance view that links licence utilisation to access reviews and renewal decisions.
Related resources from NHI Mgmt Group
- What breaks when organisations cannot see agent-to-agent handoffs?
- What breaks when organisations cannot see behaviour changes across traders, bots, and AI agents?
- What breaks when organisations cannot see third-party app consent clearly?
- What breaks when organisations cannot map all of their APIs and the identities using them?