Evaluating Zero Trust Network Access: A Framework for Comparative Security Testing

Not all Zero Trust Network Access (ZTNA) solutions are created equal, and despite bold marketing claims, many fall short of delivering proper Zero Trust security.

In a crowded market with vague standards and feature parity buzzwords, organizations are left guessing which solutions enforce the principles of Zero Trust. While most evaluations rely on vendor checklists and surface-level comparisons, this white paper takes a different approach: building and applying a hands-on testing framework grounded in NIST SP 800-207 and the CISA Zero Trust Maturity Model.

This research uncovers gaps, clear differentiators, and actionable insights by testing five leading ZTNA products across the core pillars of Identity, Devices, Networks, Applications, and Data. The result is a methodology for objectively comparing ZTNA solutions based on their alignment with core Zero Trust principles and organizational security requirements.