They extend access beyond the user’s immediate session and often keep working after the original business need has ended. That persistence increases the chance of data access, lateral movement, and compliance exposure. The risk rises when organisations cannot see where those tokens live or who is responsible for revoking them.
Why This Matters for Security Teams
User-generated NHIs are risky because they are created by employees, developers, and operators outside the normal identity lifecycle, then left to run with permissions that outlive the original task. That creates a governance gap: the business thinks the access was temporary, but the token, API key, or service account often remains active. NHI Management Group’s Ultimate Guide to NHIs shows how common this gap is, and NIST Cybersecurity Framework 2.0 reinforces that identity governance must be continuous, not event-based. The risk is not only unauthorized access, but also poor ownership, weak rotation, and missed offboarding when staff change roles or projects end.
Security teams often underestimate how quickly user-generated credentials spread into code, scripts, CI/CD jobs, and shared tooling. Once that happens, revocation becomes harder than issuance, and the blast radius expands beyond a single user session. In practice, many security teams encounter the problem only after a leaked token or forgotten service account has already been used for lateral movement, rather than through intentional lifecycle control.
How It Works in Practice
User-generated NHIs typically begin as a convenience artifact: a developer creates an API key for testing, an analyst saves a token to automate reporting, or an engineer provisions a service account to bridge a workflow. The issue is that these identities often bypass formal approval, inherit broad privileges, and remain valid long after the user stops needing them. Best practice is to treat every user-generated NHI as a governed workload identity, not a personal shortcut.
Operationally, this means security teams need three controls working together:
- Discovery and inventory, so teams know where secrets, tokens, and service accounts exist.
- Ownership and lifecycle enforcement, so each NHI has a named owner, expiry, and revocation path.
- Least-privilege access, so the credential can only do the specific task it was created for.
That guidance aligns with the 52 NHI Breaches Analysis, which shows how often weak visibility and poor control turn routine access into an enterprise incident. It also matches the NIST framing that identity risk must be managed across protect, detect, and respond, not only during provisioning. Where organisations are more mature, they replace long-lived static credentials with short-lived tokens, secrets rotation, and automated offboarding tied to the business event that created the access.
That model works best when the NHI is tied to a real system owner and monitored for abnormal use. It becomes much harder when credentials are embedded in source code, copied into third-party tools, or shared across teams without a clear revocation workflow. These controls tend to break down in fast-moving engineering environments where users can create credentials faster than governance teams can discover and retire them.
Common Variations and Edge Cases
Tighter control over user-generated NHIs often increases operational overhead, so organisations must balance developer velocity against revocation discipline. That tradeoff is real, especially in engineering-led environments where teams rely on self-service automation to move quickly.
There is no universal standard for exactly how every user-generated NHI should be approved or expired, but current guidance suggests a few common patterns. Short-lived credentials are safer than persistent keys. Central vaulting is better than secrets stored in code or config files. And user-generated access should not be treated the same as centrally managed workload identity when the business impact is high.
Edge cases matter. Some user-generated NHIs are legitimate temporary bridges during migrations, incident response, or partner integration. In those cases, the key question is whether the organisation can prove who owns the credential, what it can access, and when it will be revoked. That is the difference between controlled exception and unmanaged risk. NHI Management Group’s Top 10 NHI Issues and the Key Challenges and Risks section both point to the same operational reality: the longer a user-generated NHI lives, the more likely it is to become invisible, overprivileged, and hard to remove.
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 AI RMF set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-03 | Covers weak rotation and lifecycle control for long-lived NHI credentials. |
| NIST CSF 2.0 | PR.AC-4 | Addresses least-privilege access and ongoing access governance for NHIs. |
| NIST AI RMF | GOVERN | Supports accountability and oversight for identity risk in AI-enabled workflows. |
Map each user-generated NHI to a named owner and enforce least privilege continuously.
