Zero Trust Network Access (ZTNA) is the fundamental component behind the zero trust model. It provides secure access to resources based on user identity and device posture, rather than relying on network location. ZTNA enables organizations to implement granular, defined access controls, providing users with the least privilege necessary to perform their tasks. By limiting access to only the applications and services users have permission to see, the approach minimizes any potential attack surface and reduces the risk of unauthorized lateral movement—a common vulnerability exploited by cybercriminals. By denying access by default and setting up one-to-one encrypted connections between devices and the resources they utilize, ZTNA provides secure remote access to specific applications and services while concealing most infrastructure and services. This also allows for location and device-specific access control policies to be implemented, preventing compromised devices from connecting to services.