What does Zero Trust Network Access (ZTNA) rely on?

Zero Trust Network Access (ZTNA) is fundamentally built on the principle of least-privileged access, which means that users are granted the minimal levels of access necessary to perform their functions. This approach enhances security by ensuring that access to sensitive resources is tightly controlled and continuously verified.

With ZTNA, each access request is evaluated based on the identity of the user, the context of the request, and the security posture of the device being used. This means that even if a user has previously been authenticated, further verification is required for access to various network resources. This focus on identity and context helps mitigate insider threats and limits the attack surface within an organization's environment.

Other options do not align with ZTNA principles. Trusting all users by default contradicts the Zero Trust model, which is rooted in the idea that no user should be trusted automatically. Regular password changes are a traditional security measure that does not inherently connect to the key tenets of ZTNA, which emphasizes robust identity verification and access controls. Lastly, system performance monitoring, while important for network management, does not directly relate to the foundational principles of ZTNA concerning access control based on identity.