What does the principle of least privilege mean in the context of ZTNA?

The principle of least privilege in the context of Zero Trust Network Access (ZTNA) emphasizes the importance of granting users and devices the minimum levels of access necessary to perform their tasks. This means that users should only have access to the specific resources and data they need for their work, reducing the risk of unauthorized access and potential security breaches.

Implementing this principle helps to limit the attack surface within an organization. For instance, if a user only needs access to a certain application, they should not be granted access to the entire network or unnecessary resources. This careful curation of access rights strengthens security by minimizing the potential impact of compromised accounts or insider threats.

While the other choices might suggest broader access or convenience, they do not align with the security implications of the least privilege approach. Granting unrestricted access or allowing users to access entire network segments goes against the core principle of ZTNA, which is to ensure stricter access controls and reduce risk.