How should organisations respond when trusted access becomes the attack path?

Why This Matters for Security Teams

When trusted access becomes the attack path, the control problem changes. The danger is no longer only credential theft at the edge, but inheritance of access inside systems that already assume legitimacy. That is why NHI governance, privilege scoping, and attack-path analysis must be treated as one operating model, not separate disciplines. NHIs often outnumber humans by 25x to 50x in modern enterprises, and 97% carry excessive privileges, which means inherited trust is frequently broader than teams realise.

This is also where attack paths become operationally meaningful. A service account, API key, or delegated token may appear low risk in isolation, yet once it can reach a crown-jewel system, the blast radius changes. The issue is amplified by delayed rotation and weak offboarding. NHIMG’s Ultimate Guide to NHIs shows that 79% of organisations have experienced secrets leaks, with 77% resulting in tangible damage. That pattern aligns with the broader risk model described in OWASP Non-Human Identity Top 10 and the containment logic in the NIST Cybersecurity Framework 2.0.

In practice, many security teams encounter the real attack path only after a trusted token has already been used to move laterally into a system they assumed was insulated.

How It Works in Practice

The right response is to map what each identity can actually do, then reduce that reach before an attacker does. For machine, service, and delegated identities, this means identifying the privileged chains that connect authentication to action: which token can call which API, which workload can assume which role, and which approval path can be abused to escalate. The most effective teams now combine attack-path analysis with zero standing privilege, short-lived credentials, and strict workload identity controls rather than relying on static RBAC alone.

Current guidance suggests that organisations should treat access as a runtime decision. That means evaluating context at request time, not only assigning roles at onboarding. A practical model uses policy-as-code for enforcement, then issues just-in-time credentials only for a single task or bounded session. Workload identity is the anchor here because it proves what the agent or service is, not just what secret it holds. Standards and implementation guidance from CISA cyber threat advisories and the Anthropic report on AI-orchestrated cyber espionage both reinforce the need to assume fast, automated chaining once trust is inherited.

• Inventory every non-human and delegated identity, then map each one to its reachable systems and data.
• Replace long-lived secrets with short-lived, task-scoped credentials wherever the platform supports it.
• Set explicit expiry, revocation, and re-approval rules for privileged sessions and API tokens.
• Review role inheritance, trust relationships, and cross-account assumptions for lateral movement risk.
• Prioritise crown-jewel paths first, not every identity equally, because containment is bounded by the most valuable reachable asset.

These controls tend to break down in highly dynamic environments where identities are created automatically across many clusters or accounts because ownership, revocation, and provenance become difficult to keep synchronized.

Common Variations and Edge Cases

Tighter credential scoping often increases operational overhead, requiring organisations to balance containment against pipeline speed and automation reliability. That tradeoff is real, especially where legacy systems expect persistent secrets or where CI/CD jobs reuse tokens across multiple steps. Best practice is evolving, and there is no universal standard for this yet, but the direction is clear: make broad trust an exception, not the default.

Edge cases usually appear in environments with shared service accounts, third-party integrations, or long-running background jobs. In those settings, a strict just-in-time model may need compensating controls such as segmented vault access, per-workload attestations, and continuous policy evaluation. NHIMG’s OWASP NHI Top 10 is especially relevant when delegated access is being used by autonomous or semi-autonomous systems, because the same trust path can be reused at machine speed. The MITRE ATLAS adversarial AI threat matrix is also useful where AI-driven workflows can chain tools and expand reach in ways static reviews miss.

Organisations should be cautious about treating “trusted” internal identities as inherently safe. Once an attacker captures a privileged token, the distinction between internal and external collapses quickly. In practice, the most common failure is not weak authentication at login, but weak containment after trust has already been granted.

Related resources from NHI Mgmt Group

• How do organisations keep AI-assisted access changes accountable?
• How should security teams run access reviews for non-human identities?
• How should security teams govern non-human identities that have persistent access?
• What is the difference between attack surface management and NHI governance?