Ownership should sit with the identity team, but it must include the platform and application teams that expose or consume agent access. The practical rule is that every agent identity needs an owner, a revocation route, and an audit trail. If those three things are unclear, accountability will fail when the agent’s access changes.
Why This Matters for Security Teams
Ownership of agent identity and federation is not a paper exercise. If the identity team owns the control plane but platform and application teams control how agents are created, connected, and retired, gaps appear at the exact moments that matter most: onboarding, privilege changes, and offboarding. Current guidance from the Ultimate Guide to NHIs and the NIST AI Risk Management Framework both point to shared accountability, because autonomous workloads cross boundaries that classic identity operating models were never designed to handle.
The practical issue is federation. An agent often authenticates through one system, receives tokens from another, and invokes tools owned by a third. If no single owner is responsible for the lifecycle, revocation becomes delayed, token trust chains drift out of sync, and audit evidence fragments across teams. NHIMG research shows how often this breaks in reality: 91% of former employee tokens remain active after offboarding, and 73% of vaults are misconfigured, which is why lifecycle ownership has to be explicit rather than implied. In practice, many security teams encounter revocation failures only after the agent has already retained access longer than intended.
How It Works in Practice
The cleanest model is a federated ownership pattern with one accountable owner and multiple contributing operators. The identity team should own the policy, lifecycle standard, trust relationships, and deprovisioning workflow. Platform teams should own the runtime integration that mints, refreshes, and logs agent credentials. Application teams should own the business justification, scope, and approval for each agent’s access to tools, APIs, and downstream services. This division aligns with the way agentic systems are described in OWASP Agentic AI Top 10 and CSA MAESTRO agentic AI threat modeling framework, where control responsibility follows the real system boundaries rather than org chart convenience.
Operationally, mature teams define a lifecycle record for every agent identity. That record should include:
- an accountable business owner and a technical steward
- the federation source, relying parties, and token issuance path
- scope, expiry, and revocation triggers for all credentials
- logging ownership for authentication, authorization, and token exchange events
- an offboarding path that is tested, not merely documented
Federation also needs explicit trust policy. If the agent uses workload identity, the identity team should manage issuer trust and assurance requirements, while the platform team validates runtime identity proof and the application team defines what the agent may do once authenticated. NHI lifecycle governance is strongest when this is mapped to the lifecycle guidance in the NHI Lifecycle Management Guide, especially where short-lived credentials, rotation, and deprovisioning intersect.
These controls tend to break down when agents are allowed to self-provision access across multiple platforms without a central revocation workflow, because no team can prove where trust ends or who can actually shut it down.
Common Variations and Edge Cases
Tighter lifecycle governance often increases handoff overhead, so organisations have to balance speed of agent delivery against the cost of formal ownership. That tradeoff is real, especially for experimental agent pilots where product teams want rapid iteration and security teams want deterministic control.
There is no universal standard for this yet, but current guidance suggests using different ownership patterns by risk tier. A low-risk internal agent may have a single identity owner with platform enforcement. A high-impact agent with production data, external federation, or delegated tool execution should require dual approval from identity and application leadership, plus platform sign-off for runtime trust. Where agents span business units, the accountable owner should be the team that can answer for the agent’s access decision and revoke it immediately, even if another team runs the infrastructure.
Edge cases appear when federation crosses organisational boundaries, such as third-party agents, shared service meshes, or delegated access into SaaS platforms. In those environments, ownership should extend to contract terms, trust revocation, and monitoring of external issuers, not just local IAM tickets. NHIMG’s Top 10 NHI Issues and the 52 NHI Breaches Analysis both reinforce the same pattern: lifecycle failure is usually a coordination failure, not a tooling failure. The right ownership model is the one that makes revocation possible before exposure becomes an incident.
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, OWASP Agentic AI Top 10 and CSA MAESTRO define the specific risk controls and attack patterns relevant to this topic.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-01 | Lifecycle ownership and revocation are core NHI identity governance concerns. |
| OWASP Agentic AI Top 10 | A-03 | Agentic systems need runtime control over autonomous access and tool use. |
| CSA MAESTRO | MAESTRO maps ownership across agent lifecycle, trust, and deployment boundaries. |
Define a single accountable owner and shared operating model for federation, issuance, and deprovisioning.
