The disconnect between what identity systems think was granted and what access systems show was actually used. This gap weakens governance because teams cannot confidently decide whether access is still necessary, especially in hybrid and distributed environments.
Expanded Definition
A runtime observability gap exists when identity governance records, access controls, and telemetry from systems in use do not agree about what an NHI actually did. In practice, a role may appear provisioned in IAM, yet logs, API gateways, or workload traces show no corresponding use. The reverse can also happen: systems show access activity that governance records never captured. This is more than a reporting defect. It is a visibility failure that breaks assurance across the NHI lifecycle.
Definitions vary across vendors because some tools frame the issue as entitlement drift, while others describe it as access usage mismatch or shadow activity. NIST Cybersecurity Framework 2.0 is helpful here because it treats visibility, monitoring, and governance as linked outcomes rather than separate disciplines, and that framing fits NHIs and autonomous agents well. For NHI programs, runtime observability should connect inventory, authentication events, secret use, and workload execution into one evidence chain. When those signals are disconnected, teams cannot tell whether access is stale, necessary, or simply invisible.
The most common misapplication is treating an audit report as proof of actual use when runtime telemetry is missing or incomplete.
Examples and Use Cases
Implementing runtime observability rigorously often introduces telemetry overhead and integration complexity, requiring organisations to weigh stronger governance against additional platform cost and data handling effort.
- A service account appears in IAM with broad permissions, but application logs show it has not called production APIs for 90 days, prompting removal after review guided by the Ultimate Guide to NHIs.
- An AI Agent uses a short-lived token to trigger a deployment workflow, yet the secrets manager shows no matching issuance record, indicating broken traceability between runtime access and credential controls.
- A machine identity authenticates successfully from a new cloud region, but the access path is not reflected in RBAC change history, so the event must be reconciled against NIST Cybersecurity Framework 2.0 monitoring expectations.
- After an incident, investigators find that an expired API key was still accepted by one edge service, revealing a gap between policy state and operational enforcement.
- A platform team correlates secret rotation, token issuance, and workload traces to prove that an NHI’s privileges are still in active use before approving JIT access changes.
These cases show why runtime evidence matters: it separates dormant access from active dependency and prevents teams from revoking something critical by mistake.
Why It Matters in NHI Security
Runtime observability gaps weaken zero trust because zero trust depends on continuous verification, not just initial provisioning. They also undermine offboarding, privilege cleanup, and incident response, especially in hybrid estates where identities, secrets, and workloads move faster than manual reviews. NHI Mgmt Group research shows that only 5.7% of organisations have full visibility into their service accounts, which explains why this gap is so common and so persistent. The same visibility problem is closely tied to excessive privilege and stale secrets, both of which expand exposure when usage cannot be proven or disproven.
For security leaders, the practical risk is not only lost audit confidence. It is the inability to decide whether a credential can be rotated, revoked, or left in place without disrupting a dependency. That is why runtime observability belongs alongside lifecycle management in any serious NHI program, as reinforced in the Ultimate Guide to NHIs and in governance-oriented standards such as NIST Cybersecurity Framework 2.0.
Organisations typically encounter the operational cost of this gap only after an incident review, at which point access reconstruction becomes unavoidable to prove what actually happened.
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-01 | Runtime visibility gaps expose weak inventory and monitoring for non-human identities. |
| NIST CSF 2.0 | DE.CM | Continuous monitoring and anomaly detection are central to identifying access-usage mismatches. |
| NIST Zero Trust (SP 800-207) | PA-1 | Zero Trust requires continuous verification of identity and access context, not one-time trust. |
Use runtime evidence to validate each NHI request and revoke trust when usage cannot be proven.
Related resources from NHI Mgmt Group
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on May 29, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
