TL;DR: Zero trust fails when teams treat identity, device, and application controls as separate checkboxes instead of a single trust chain, according to Beyond Identity’s analysis. The practical lesson is that identity remains the control plane for NHI governance, and weak credential hygiene still undermines every downstream access decision.
Editorial analysis by NHI Mgmt Group, based on content published by Beyond Identity: “Security Perimeters in Zero Trust”.
Key questions
A: Start with a clear map of users, devices, services, and data, then apply verification at each access point.
Q: Why do weak credentials and device drift still undermine zero trust programmes?
A: Because zero trust depends on continuous trust validation, not a one-time sign-in event.
Q: What breaks when access and device controls are managed in separate systems?
A: Lifecycle events become harder to validate, access revocation becomes less reliable, and policy enforcement can diverge between tools.
Practitioner guidance
- Harden phish-resistant authentication Require phishing-resistant MFA for high-risk user populations and privileged workflows so that identity proofing is not reduced to reusable secrets or easily relayed factors.
- Make device posture a live condition Continuously evaluate endpoint compliance and revoke access when devices lose encryption, firewall, patch, or EDR coverage.
- Separate routine and privileged application actions Apply step-up verification for critical transactions, administrative actions, and sensitive data operations inside applications.
Bottom line: Zero trust works as a trust chain, not as three separate security checkboxes.
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Identity is the control plane that makes zero trust real: Zero trust architectures do not start with network segmentation, they start with proving identity at the moment of access. Once credentials, phishing resistance, and least privilege weaken, every downstream device or application decision inherits that weakness. The field should stop describing identity as one pillar among many and treat it as the trust primitive that the other pillars depend on.
A few things that frame the scale:
- 90% of IT leaders say properly managing NHIs is essential for a successful zero-trust implementation, according to the Ultimate Guide to NHIs.
A question worth separating out:
Q: How do teams decide when to apply stronger controls to application actions?
A: Use the sensitivity of the action, not just the user’s login status, to determine the control. Routine access can rely on baseline policy, but privileged or high-impact actions should trigger step-up verification, tighter authorization, or additional monitoring before the action is allowed.
👉 Read our full editorial: Zero trust perimeters are only as strong as identity controls