Start by building a unified identity inventory that correlates human and non-human identities, entitlements, and access paths across IAM, IGA, PAM, and application data. Then use that inventory to rank dormant accounts, standing privilege, and shadow IT before you enforce new control rules. Without that sequencing, teams tend to automate incomplete governance.
Why This Matters for Security Teams
Visibility has to come before tighter control because access policy is only as good as the identity data behind it. If teams harden RBAC, PAM, or secret rotation without a current inventory, they usually protect the wrong accounts and miss the real ones: dormant service accounts, orphaned API keys, unmanaged OAuth grants, and hidden machine identities. That is especially dangerous in environments where NHIs already outnumber human identities by 25x to 50x, and only 5.7% of organisations report full visibility into service accounts, according to the Ultimate Guide to NHIs.
This sequencing also matters for compliance and operational trust. Standards such as OWASP Non-Human Identity Top 10 and PCI DSS v4.0 both push teams toward demonstrable control over identity, credential, and access lifecycles, but they do not remove the need to discover what exists first. In practice, many security teams encounter privilege creep only after an incident exposes an identity they never knew was active.
How It Works in Practice
The practical sequence is straightforward: discover, correlate, rank, then enforce. Start by pulling identity records from IAM, IGA, PAM, cloud platforms, CI/CD tools, code repositories, and application ownership data into a single inventory. Then normalize each identity into a usable record that shows who or what owns it, what it can access, whether it is human or non-human, and whether the credential behind it is still valid. The Top 10 NHI Issues and the Ultimate Guide to NHIs — Key Challenges and Risks are useful references for the most common failure patterns.
- Correlate cloud roles, service accounts, API keys, certificates, and OAuth grants to one owner and one business purpose.
- Tag dormant accounts, standing privilege, and secrets with no rotation path before changing enforcement rules.
- Use the inventory to remove blind spots in PAM and to decide where JIT access is realistic versus where static access still exists.
- Apply policy changes gradually so teams can validate impact on pipelines, workloads, and third-party integrations.
Where possible, tie the inventory to runtime evidence from logs and auth telemetry. That makes it easier to distinguish an account that is merely unused from one that is unused but still embedded in a production workflow. The common guidance is aligned with the NHI Lifecycle Management Guide and with the identity assurance principles in OWASP Non-Human Identity Top 10. These controls tend to break down when identities are created inside CI/CD pipelines or SaaS apps without a central owner because the inventory cannot keep pace with provisioning.
Common Variations and Edge Cases
Tighter identity control often increases operational overhead, requiring organisations to balance reduction in risk against deployment speed and service uptime. That tradeoff becomes sharper in shared-platform environments, where multiple teams use the same service account, or in legacy systems that cannot support modern lifecycle hooks. Current guidance suggests that teams should first isolate ownership and usage before forcing hard cuts, because otherwise revocation can disrupt critical workloads.
There is no universal standard for every exception pattern yet, especially for vendor-managed integrations, ephemeral build agents, and externally hosted SaaS connectors. For those cases, use the inventory to separate unavoidable standing access from access that can move to JIT or short-lived tokens. The research in 52 NHI Breaches Analysis and Cisco DevHub NHI breach shows how often hidden identities remain active long after teams think they have been retired. In mature environments, the right answer is not to tighten everything at once, but to use visibility to decide where zero standing privilege is realistic and where transitional controls are still needed.
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 Zero Trust (SP 800-207) set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-03 | Covers discovery and rotation of NHIs before access hardening. |
| NIST CSF 2.0 | PR.AC-4 | Maps to managing access permissions once identity visibility exists. |
| NIST Zero Trust (SP 800-207) | Zero Trust depends on verified identity context before access decisions. |
Inventory all NHIs first, then rotate or revoke high-risk credentials before enforcing stricter access rules.
Related resources from NHI Mgmt Group
- How should security teams run access reviews for non-human identities?
- How should security teams govern non-human identities that have persistent access?
- How should security teams govern API keys used for generative AI access?
- How should security teams govern delegated admin access from cloud providers?
