The security administrator's actions of removing default permissions and adding permissions only for users who need access as part of their job duties best describe the principle of least privilege.
This principle ensures that users are granted the minimum necessary access to perform their job functions, reducing the risk of unauthorized access or data breaches.
Least privilege: Limits access rights for users to the bare minimum necessary for their job duties, enhancing security by reducing potential attack surfaces.
Encryption standard compliance: Involves meeting encryption requirements, but it does not explain the removal and assignment of specific permissions.
Data replication requirements: Focus on duplicating data across different systems for redundancy and availability, not related to user permissions.
Access control monitoring: Involves tracking and reviewing access to resources, but the scenario is about setting permissions, not monitoring them.