The accountable teams are security, platform engineering, and procurement together, because the impact spans access, migration, support, and cost. End-of-life decisions should trigger lifecycle review for every dependent workload identity, every rotation workflow, and every integration that relies on the affected tier.
Why This Matters for Security Teams
When a secrets platform is sunsetted or re-packaged, the risk is not just operational inconvenience. It becomes an identity, access, and resilience issue at the same time. Every dependent workload, rotation job, API integration, and break-glass path may be tied to a control plane that no longer exists in its current form. That is why accountability must sit across security, platform engineering, and procurement, not in a single queue.
Security teams often underestimate how quickly a tooling change turns into a secrets exposure problem. Once support ends or a tier changes, stale credentials and broken automation can linger unnoticed. NHI Management Group’s research on the Guide to the Secret Sprawl Challenge shows how quickly unmanaged secrets accumulate across environments, and the same pattern applies when a platform is withdrawn without lifecycle planning. The core failure is assuming the platform owner will clean up what downstream teams have embedded into pipelines, apps, and infrastructure.
In practice, many security teams encounter credential exposure only after a platform migration has already broken rotation or left old secrets active in production, rather than through intentional decommissioning.
How It Works in Practice
Accountability starts with a shared inventory, not a shared assumption. A sunset or re-package event should trigger a formal review of every secret class the platform issues, every workload identity that consumes those secrets, and every automation path that depends on renewal, revocation, or escrow. If the platform also brokers access for agents or service workloads, the review must include runtime authorization paths, not just human admin access.
In current guidance, the safest operating model is to treat this as a lifecycle control problem. Security defines the required controls, platform engineering maps the technical dependencies, and procurement governs notice periods, contract terms, and support continuity. The practical sequence is usually:
- Identify all dependent services, pipelines, and non-human identities.
- Classify secrets by blast radius, rotation interval, and revocation dependency.
- Replace long-lived secrets with short-lived credentials where feasible.
- Validate fallback paths for rotation, recovery, and emergency access.
- Confirm who signs off on residual risk before the old tier is retired.
This is where standards become useful. The OWASP Non-Human Identity Top 10 is a strong reference for aligning secret hygiene with workload identity and credential lifecycle control. For an NHI-focused operational view, NHI Management Group’s Ultimate Guide to NHIs - Static vs Dynamic Secrets is especially relevant because it distinguishes durable secrets from ephemeral ones in exactly the kind of transition that decommissioning exposes. When the platform change affects CI/CD or build runners, the dependency map should also include CI/CD pipeline exploitation case study patterns, since those environments often hold the fastest-moving credentials.
These controls tend to break down when the platform has been embedded as a hidden dependency inside unmanaged scripts, ephemeral build jobs, or vendor-managed integrations because no single team can see the full credential path.
Common Variations and Edge Cases
Tighter platform retirement controls often increase migration cost and coordination overhead, requiring organisations to balance faster decommissioning against the risk of breaking mission-critical automation. That tradeoff is especially sharp when the “new” platform is a repackaged tier from the same vendor, because teams may assume continuity even though support terms, rate limits, or secret storage semantics have changed.
There is no universal standard for this yet, but best practice is evolving toward explicit ownership by dependency type. For example, security should own secret-risk decisions, platform engineering should own technical cutover and rollback, and procurement should own commercial safeguards such as notice windows, exit clauses, and support commitments. If the platform serves AI or agentic workflows, the review should be more conservative because autonomous systems can fan out access in ways that are hard to predict.
One useful signal is whether the platform ever issued long-lived secrets that are still valid after support ends. GitGuardian’s State of Secrets Sprawl 2026 notes that 64% of valid secrets leaked in 2022 are still exploitable today, which is why decommissioning must include revocation verification, not just documentation updates. The moment a sunset plan ignores revocation testing, accountability shifts from a governance question to an incident response question.
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 secret lifecycle and rotation risk during platform sunset. |
| NIST CSF 2.0 | GV.OC-2 | Ownership and external dependencies must be defined for decommissioning. |
| NIST AI RMF | Shared accountability and lifecycle risk fit AI RMF governance principles. |
Document decision rights, residual risk, and shutdown criteria before repackaging or sunset.
Related resources from NHI Mgmt Group
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on July 8, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
