Start by classifying AI usage by identity type, data sensitivity, and execution context, then enforce policy at runtime rather than only through written rules. Human users, enterprise copilots, and autonomous agents should not share the same control path if they can process different data or take different actions. The goal is visible, auditable behaviour control.
Why This Matters for Security Teams
Policy compliance fails when it is treated as a document problem instead of a runtime control problem. Human employees, copilots, and autonomous agents can all touch the same data, but they do not pose the same risk: agents can chain tools, move faster than review loops, and execute actions that no person explicitly requested. That is why current guidance from NIST AI Risk Management Framework and the OWASP Agentic AI Top 10 both point toward context-aware controls rather than static trust assumptions.
The operational mistake is to use one approval path for every AI interaction and assume RBAC alone will hold. In practice, that leaves gaps around data egress, prompt injection, secret exposure, and unchecked tool use. NHIMG research on OWASP NHI Top 10 shows why identity and agent behaviour have to be governed together, not as separate programmes. In practice, many security teams encounter policy drift only after an agent has already accessed the wrong dataset or triggered an unapproved workflow, rather than through intentional control design.
How It Works in Practice
Start by separating policy by identity type and execution context. A human user with a browser session, an enterprise copilot with read-only assistance, and an autonomous agent with tool access should each have different authorisation rules, different logging requirements, and different credential lifetimes. For agents, the most defensible pattern is just-in-time credential provisioning with short-lived secrets, tied to workload identity rather than a long-lived shared account. That gives the system a cryptographic proof of what the agent is, which matters more than who launched it.
At runtime, evaluate policy against the actual request: what data is being requested, what tool is being invoked, what system is being targeted, and whether the action matches the declared intent. This is where policy-as-code, zero trust, and intent-based authorisation matter. In agentic environments, static IAM rules often fail because the agent’s path is not predetermined. The better pattern is real-time policy evaluation using signals such as task scope, user approval state, data classification, and risk score. See the CSA MAESTRO agentic AI threat modeling framework and NIST AI Risk Management Framework for governance structures that support that model.
- Use separate policy tiers for employees, copilots, and agents.
- Issue JIT credentials per task and revoke them when the task ends.
- Bind secrets to workload identity, not to a person’s login.
- Require approval for sensitive actions such as exports, deletions, and privilege changes.
- Log every tool call, policy decision, and data access path for auditability.
NHIMG research on the Moltbook AI agent keys breach is a useful reminder that agent credentials are often the softest control point. These controls tend to break down when agent workflows span multiple SaaS tools and legacy systems because policy context is lost between handoffs.
Common Variations and Edge Cases
Tighter runtime control often increases friction, requiring organisations to balance speed against assurance. That tradeoff is real, especially for teams that want broad copilots for productivity but strict containment for agents that can act autonomously. There is no universal standard for every approval threshold yet, so best practice is evolving: many organisations start with high-friction controls on high-impact actions and lighter controls on low-risk summarisation or drafting.
The hardest edge cases are delegated workflows, multi-agent chains, and shared service accounts. If an employee asks an agent to “just do it,” the policy engine still needs to know whether that means read, recommend, or execute. Where OWASP Top 10 for Agentic Applications 2026 and NHIMG’s AI LLM hijack breach guidance are most relevant is in showing that policy bypass often happens through chaining, not a single obvious violation. For regulated data, this should be paired with the NIST Cybersecurity Framework 2.0 so governance, monitoring, and response stay aligned.
Current guidance suggests a phased model: classify use cases, separate human and agent control paths, enforce JIT access for agents, and add human approval where the business impact is irreversible. For high-trust internal copilots, organisations may accept broader read access with stronger monitoring, but for autonomous systems the bar should be much higher because behaviour can shift after deployment.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Agentic AI Top 10 and CSA MAESTRO address the attack and risk surface, while NIST AI RMF set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Agentic AI Top 10 | Agentic top-10 guidance addresses runtime risks from autonomous tool use and policy bypass. | |
| CSA MAESTRO | MAESTRO covers threat modeling for multi-step agent workflows and control boundaries. | |
| NIST AI RMF | AI RMF supports governance, accountability, and operational monitoring for AI policy enforcement. |
Model agent paths, tools, and approvals before deployment, then enforce those boundaries in policy code.
Related resources from NHI Mgmt Group
- How can organisations prevent agent privilege drift across human and workload systems?
- Why is single-provider AI agent governance not enough for enterprise security?
- How can organisations reduce the blast radius of compromised agent identities?
- How should organisations prove EU AI Act compliance across the AI lifecycle?
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on June 5, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org