Configuration profiles enhance device security by allowing IT administrators to enforce policies such as passcode requirements, app restrictions, and encryption settings. Deployed via MDM or manually, they ensure devices meet organizational security standards. Network performance (option B) is improved by content caching, not profiles. Data separation (option C) is a User Enrollment feature. Simplified enrollment (option D) aligns with ADE. The Apple Platform Deployment Guide emphasizes security as a primary benefit of configuration profiles.