The ability to see how identities, credentials, and resources are actually being used across the environment. It is the evidence layer that turns access governance from assumption into decision, and it is essential for removing dormant access safely.
Expanded Definition
Usage visibility is the operational ability to observe how NHIs, credentials, and connected resources behave in real environments, not just how they are defined in policy. It captures authentication frequency, token use, service-to-service pathways, dormant accounts, and unusual entitlement patterns so teams can verify whether access is still justified.
In NHI governance, usage visibility is distinct from inventory and posture management. Inventory answers what exists; usage visibility answers what is active, what is idle, and what is being exercised in production. That distinction matters because service accounts, API keys, certificates, and machine tokens often persist long after the business need has changed. The concept aligns with evidence-driven control validation in the NIST Cybersecurity Framework 2.0, especially where organisations must continuously assess access effectiveness rather than rely on static approval records.
Definitions vary across vendors when telemetry includes only authentication logs, while others require contextual tracing across workload, cloud, and secret-management systems. NHI Management Group treats the broader interpretation as more useful because it supports safe deprovisioning, anomaly detection, and privileged access review. The most common misapplication is treating an access list as proof of usage, which occurs when teams assume approved credentials are still actively required without validating runtime evidence.
Examples and Use Cases
Implementing usage visibility rigorously often introduces telemetry overhead and cross-platform correlation work, requiring organisations to weigh faster privilege reduction against logging complexity and storage cost.
- A platform team reviews service-account authentication logs to find dormant workloads before removing unused credentials, guided by lifecycle controls in the NHI Lifecycle Management Guide.
- A cloud security team traces API key usage across CI/CD pipelines and production apps to distinguish active automation from abandoned keys, then updates the entitlement record only for identities that still exchange traffic.
- An incident responder compares secret access patterns against normal deployment windows to spot token misuse after an unusual export event, using telemetry principles consistent with NIST Cybersecurity Framework 2.0.
- A governance team identifies certificates that authenticate only once per quarter and converts them to tightly scoped, monitored workflows instead of leaving broad standing access in place.
- Security leaders use the findings from Top 10 NHI Issues and the Ultimate Guide to NHIs — Key Challenges and Risks to prioritise which dormant identities can be removed first without breaking application flows.
In practice, usage visibility becomes most valuable where service-to-service trust is large, dynamic, and poorly documented.
Why It Matters in NHI Security
Usage visibility is the evidence layer that makes least privilege defensible for machine identities. Without it, teams cannot tell whether access is genuinely needed, whether secrets are still active, or whether an apparently legitimate identity has become a hidden foothold. That gap increases the chance that dormant credentials survive rotation cycles, remain exposed in code or pipelines, or continue to authenticate after the workload they supported has changed.
The urgency is clear in NHIMG research: only 5.7% of organisations have full visibility into their service accounts, which means most environments are still operating with incomplete evidence about NHI behaviour. That lack of observability undermines incident response, offboarding, and privilege cleanup, especially when identities outnumber human users by a wide margin and change faster than manual reviews can keep up.
For governance teams, usage visibility also supports better decisions about JIT access, ZSP enforcement, and secrets rotation because it reveals what is actually used versus merely approved. Organisations typically encounter the real cost only after a breach investigation, at which point usage visibility becomes operationally unavoidable to address.
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-07 | Usage visibility underpins continuous validation of NHI activity and dormant access. |
| NIST CSF 2.0 | DE.CM | Continuous monitoring requires evidence of how identities and resources are actually used. |
| NIST Zero Trust (SP 800-207) | JP/monitoring | Zero Trust depends on continuous verification of runtime identity behavior, not static trust. |
Use usage telemetry to re-evaluate trust decisions and remove standing access when activity is absent.
