Advanced Data Protection for iCloud adds end-to-end encryption for items like notes and photos, enhancing privacy.While most iCloud data is encrypted, Advanced Data Protection offers additional security by enabling end-to-end encryption.Apple introduced Advanced Data Protection in 2022 but faced opposition; in 2025, it removed the feature in the UK due to government demands.Enabling Advanced Data Protection strengthens privacy by storing decryption keys only on trusted devices, not with Apple.End-to-end encryption is added to items like iCloud backup, photos, notes, and more upon activating Advanced Data Protection.Certain data like iCloud Mail, Calendars, and Contacts remain with standard security and are not end-to-end encrypted.Requirements for enabling Advanced Data Protection include two-factor authentication, device passcode, and recovery contact or key.Users should securely store recovery keys and add trusted recovery contacts to prevent losing access to their Apple Account.Enabling Advanced Data Protection involves adding a recovery contact, setting up a recovery key, and turning on the feature in device settings.Accessing iCloud.com post-enabling Advanced Data Protection may require additional settings on iOS, macOS, Windows, or Android devices.