Persistent protection is the security strategy most closely associated with data rights management (DRM) solutions. Managing Cloud principles explain that DRM is designed to ensure that data remains protected throughout its entire lifecycle, regardless of where it is stored, shared, or accessed.

Persistent protection means that security controls such as access restrictions, usage limitations, and expiration rules stay attached to the data itself. Even if the data is copied, transferred, or moved outside the original system, DRM policies continue to enforce protection. This approach is critical in cloud environments where data frequently moves across platforms, users, and geographic regions.

The other options do not represent DRM strategies. Multilevel aggregation and enhanced detail relate to data processing or analytics concepts, while unexpired digital content describes a content state rather than a security strategy. Therefore, persistent protection correctly represents the security approach used by data rights management solutions.