PR.AA-05 establishes a policy-driven approach to managing access permissions, ensuring they are granted based on need (least privilege) and distinct roles (separation of duties). This includes regular reviews to revoke unnecessary privileges, such as when roles change, and enforcement through technical controls. It minimizes the risk of excessive or conflicting access rights.

This subcategory supports a secure environment by aligning authorizations with risk levels, considering factors like geolocation or device health in dynamic systems like zero trust. It ensures accountability through periodic audits, maintaining proper access boundaries across the organization. PR.AA-05 balances usability with stringent access control.