Accountability sits with the teams that own identity governance, network enforcement, and service continuity because open internal access paths are usually a design choice, not an accident. If those paths enable disruption, the control owners should be able to show which risks were accepted, reduced, or left unresolved.
Why This Matters for Security Teams
When internal access paths stay open, resilience is no longer just a service uptime issue. It becomes an accountability issue across identity governance, network enforcement, and application owners. Open east-west paths, broad service trust, and lingering credentials can turn a localized failure into a wider outage or a lateral movement event. That is why current guidance from the OWASP Non-Human Identity Top 10 and NIST control thinking both point back to ownership, least privilege, and continuous review, not one-time hardening.For NHI-specific risk, the Ultimate Guide to NHIs is clear that service identities, secrets, and workload permissions must be governed as operational assets, not just security artifacts. If the same internal route can still reach sensitive services after a control failure, the organisation has accepted a resilience dependency that needs a named owner and an explicit recovery objective. In practice, many teams discover that dependency only after a service disruption exposes how many internal paths were left open by design.
How It Works in Practice
Accountability for resilience should be assigned to the teams that can actually change the condition: identity, platform, network, and service owners. The question is not whether an internal path exists, but whether it is justified, monitored, and revocable when risk changes. That means mapping each internal trust path to a control owner, a business service, and a recovery target. The 52 NHI Breaches Analysis is useful here because repeated incidents show that compromised NHIs often turn open internal access into a resilience failure, not just a credential problem.Practically, teams should treat resilience ownership as a control chain:
- Identity governance owns service account scope, rotation, and lifecycle review.
- Network enforcement owns segmentation, allowlists, and path reduction.
- Service continuity owns failover, backup assumptions, and recovery testing.
- Risk governance owns the decision to accept any residual internal exposure.
For control validation, NIST SP 800-53 Rev. 5 emphasizes boundary protection, access enforcement, and system resilience as measurable obligations, not vague intentions. Where internal service-to-service access is necessary, it should be short-lived, logged, and tied to a specific workload identity rather than a standing trust relationship. That is especially important for NHI-heavy environments where secrets and tokens are often the real blast radius. The State of Secrets in AppSec research shows how fragmented secrets handling can make containment slower than response teams expect. These controls tend to break down when legacy systems require flat network reachability because the organisation cannot revoke access without breaking core business processes.
Common Variations and Edge Cases
Tighter internal controls often increase operational overhead, so organisations have to balance resilience gains against migration cost, service fragility, and on-call complexity. That tradeoff is real, especially in hybrid estates where older applications cannot yet use workload identity or fine-grained policy evaluation.One common edge case is a shared platform team that enforces the technical control but does not own the service outcome. In that model, accountability is split: the platform team owns the mechanism, while application and business owners own the risk acceptance. Another exception is regulated recovery architecture, where some internal paths remain open for disaster recovery or break-glass access. Those paths should be explicitly documented, time-bounded, tested, and reviewed after every exercise.
Best practice is evolving toward stronger linkage between internal access and real-time policy, but there is no universal standard for this yet. For NHI-heavy estates, the Microsoft SAS Key Breach and DeepSeek breach both underline the same lesson: open access paths become resilience problems when secrets, tokens, or service permissions remain valid longer than their operational need. When that happens, accountability belongs to the owner who could have reduced the exposure but did not.
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, NIST SP 800-53 Rev 5 and NIST Zero Trust (SP 800-207) set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST CSF 2.0 | GV.OC-03 | Clarifies accountability for risk ownership across internal access paths. |
| OWASP Non-Human Identity Top 10 | NHI-03 | Relevant to managing NHI secrets and service credentials that keep paths open. |
| NIST SP 800-53 Rev 5 | AC-4 | Information flow enforcement governs whether internal paths can remain open safely. |
| NIST Zero Trust (SP 800-207) | SC-7 | Zero trust requires explicit control of internal network paths and trust boundaries. |
Assign each open internal path to a named risk owner and review it in governance cycles.
Related resources from NHI Mgmt Group
- Who is accountable when access logs or policy decisions are missing during assessment?
- Who is accountable for third-party access in healthcare zero trust?
- Who is accountable when business associates access ePHI without strong MFA?
- Who is accountable for exposing remote access services to the internet?
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on July 10, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
