Treat the software inventory as part of identity governance. If an application uses service accounts, API keys, tokens, or delegated integrations, then software retirement, renewal, and ownership changes must trigger access review and offboarding steps as well as financial review.
Why This Matters for Security Teams
Software assets are not just business systems. When they hold service accounts, API keys, tokens, certificates, or delegated integrations, they become non-human access paths that must be governed with the same rigor as workforce identity. The common failure is treating application retirement, vendor change, or ownership transfer as an IT operations task only, while the permissions attached to that software continue to live on.
That gap matters because software identities often outlast the team that created them, and they frequently carry broader access than anyone remembers. NHIMG’s Ultimate Guide to NHIs notes that 97% of NHIs carry excessive privileges, which helps explain why software inventory and identity governance cannot be separated. The same lifecycle logic appears in the lifecycle processes for managing NHIs guidance: creation, ownership, rotation, and offboarding need explicit control points, not informal follow-up.
Security teams also need to connect this to broader control frameworks. NIST’s Cybersecurity Framework 2.0 treats identity governance and asset management as linked outcomes, which is the right mental model here. In practice, many security teams encounter dormant access paths only after an application is decommissioned or a developer leaves, rather than through intentional lifecycle review.
How It Works in Practice
Effective governance starts by making software ownership visible in the identity inventory. Every application, integration, automation, and machine process should map to a business owner, a technical owner, and the non-human credentials it relies on. That means service accounts, OAuth grants, API keys, signing keys, and delegated access tokens are tracked as identity-bearing assets, not as incidental configuration.
From there, control the lifecycle in the same sequence used for human access, but with automation where possible:
- Register the software asset at onboarding, including its access dependencies and business purpose.
- Bind credentials to the application lifecycle with expiry, renewal, and rotation requirements.
- Trigger access review when ownership changes, the application is retired, or a vendor relationship ends.
- Revoke secrets and delegated access before archive or shutdown, then verify no orphaned permissions remain.
- Log the offboarding action for audit and financial reconciliation, especially where SaaS entitlements or usage-based billing are involved.
This is where NHI-specific guidance becomes practical. NHIMG’s Top 10 NHI Issues highlights how excessive privilege, secret sprawl, and weak offboarding turn routine software change into security exposure. The operational takeaway is to treat software retirement as a mandatory identity event, with access review, credential revocation, and owner sign-off occurring together rather than in separate queues.
For governance structure, the OWASP Non-Human Identity Top 10 is useful for identifying common failure modes such as overprivileged machine access and poor secret handling. These controls tend to break down when software is managed across multiple teams with no single accountable owner because no one has full visibility into the credentials that survive decommissioning.
Common Variations and Edge Cases
Tighter lifecycle control often increases operational overhead, requiring organisations to balance stronger revocation discipline against release velocity and support burden. That tradeoff becomes visible in environments with many ephemeral services, CI/CD pipelines, and third-party integrations, where a fully manual approval chain would slow delivery unacceptably.
Current guidance suggests a risk-based approach. Low-impact internal automation may justify shorter review windows and templated offboarding, while customer-facing or privileged integrations need stricter approvals, shorter token lifetimes, and more frequent reassessment. There is no universal standard for this yet, but best practice is evolving toward context-based review that reflects data sensitivity, privilege level, and blast radius.
Two edge cases deserve special attention. First, shared service accounts can hide ownership ambiguity, so security teams should move toward unique workload identity wherever possible. Second, software acquired through mergers or vendor transitions often arrives with undocumented secrets and delegated access. In both cases, the regulatory and audit perspectives from NHIMG are clear: if the organisation cannot prove who owns the access path, it does not actually govern it.
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 CSF 2.0 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-03 | Covers secret rotation and lifecycle hygiene for software-held access paths. |
| NIST CSF 2.0 | PR.AC-4 | Aligns with managing access permissions for software and machine identities. |
| NIST CSF 2.0 | ID.AM-2 | Identity-bearing software must be included in asset inventories to be governed. |
Tie every app credential to renewal, rotation, and revocation triggers during software offboarding.
