DEF CON research takes aim at ZTNA, calls it a bust

DEF CON research takes aim at ZTNA, calls it a bust

Zero Trust Network Access (ZTNA) has been promoted by vendors over the last several years as a foundational approach for network security. The basic premise is to never trust and always verify. While the core ideas behind ZTNA are valid, this multi-billion dollar market faced a brutal assessment at DEF CON 2025 when UK security researchers from AmberWolf demonstrated severe vulnerabilities across three major ZTNA vendors. The research team found…