How can organisations reduce standing access across human and non-human identities?

Why This Matters for Security Teams

Reducing standing access is not just an IAM hygiene task. It is one of the few ways to shrink the blast radius when identities are reused, over-permissioned, or left active after a project ends. That includes humans, contractors, service accounts, API keys, and integrations that often outlive the business need that created them. NHI Mgmt Group notes that Ultimate Guide to NHIs reports 97% of NHIs carry excessive privileges, which is why standing access becomes a compounding risk rather than a static configuration issue.

The practical problem is that access reviews often focus on named users while machine identities keep broad entitlements indefinitely. Security teams then inherit credential sprawl, stale permissions, and offboarding gaps that are invisible until an incident or audit exposes them. Current guidance across identity programs and zero trust models points in the same direction: access should exist only while a valid purpose exists, and it should be revalidated continuously rather than assumed safe because it was approved once. The OWASP Non-Human Identity Top 10 is especially useful here because it frames excessive privilege and lifecycle failure as systemic control gaps, not isolated mistakes.

In practice, many security teams encounter standing access only after a dormant account, forgotten token, or inherited admin grant has already been used for lateral movement or data exposure.

How It Works in Practice

Reducing standing access works best when identity governance is treated as a lifecycle control, not a one-time approval. For human identities, that means replacing blanket access with role-scoped entitlements, time-bound elevation, and periodic revalidation tied to a current job function. For NHIs, it means going further: service accounts, workloads, and integrations should have explicit owners, defined purpose, short token lifetimes, and revocation paths that are exercised automatically when the workload changes or stops.

A practical pattern is to combine least privilege with just-in-time access and continuous attestation. That usually includes:

• mapping every identity to a named business owner and technical steward;
• inventorying all secrets, keys, and certificates, including those in code and CI/CD systems;
• removing persistent admin grants and replacing them with time-limited elevation;
• requiring revalidation before renewal, not after the fact;
• automating revocation when a contractor leaves, a service is retired, or an integration changes scope.

NHIs Mgmt Group data in the Ultimate Guide to NHIs — Key Challenges and Risks shows only 20% of organisations have formal offboarding and API key revocation processes, which explains why standing access persists even when policies exist on paper. The operational model aligns with identity governance standards and with access control guidance from OWASP, but there is no universal standard for every environment yet; engineering teams still need to decide where automation, approval, and exception handling belong. These controls tend to break down in high-churn CI/CD pipelines and multi-cloud environments because ownership changes faster than entitlement review cycles.

Common Variations and Edge Cases

Tighter access control often increases operational overhead, requiring organisations to balance faster delivery against stronger revocation discipline. That tradeoff is most visible when teams rely on shared service accounts, long-lived vendor integrations, or break-glass accounts that were never designed for frequent rotation. In those cases, the goal is not always immediate elimination, but staged reduction with compensating controls and a clear retirement plan.

One important edge case is machine-to-machine access used by batch jobs or data pipelines. Best practice is evolving, but current guidance suggests these identities should be tied to workload identity, not static passwords or shared tokens, and they should be rotated on a schedule short enough to reduce exposure without breaking automation. Another edge case is emergency access. Break-glass access may remain standing by design, but it should be isolated, monitored, and periodically tested so it does not become a permanent privilege path.

The key governance mistake is assuming that one control type covers both humans and NHIs. It does not. Human access reviews, NHI secret rotation, and workload ownership checks need to operate together. That is why the broader NHI governance model in Ultimate Guide to NHIs is useful alongside the OWASP Non-Human Identity Top 10: both reinforce that standing access is a lifecycle failure, not just a permissions issue.

Related resources from NHI Mgmt Group

• How should security teams reduce standing access across users and non-human identities?
• How should security teams run access reviews for non-human identities?
• How should security teams govern non-human identities that have persistent access?
• How do organisations reduce privilege creep across human and non-human identities?