Apple introduced Advanced Data Protection (ADP) last year, which provides the highest level of cloud data security and protects most of your iCloud data using end-to-end encryption. Although it is an optional setting, it is important for users to protect their data, including iCloud backups, photos, notes, and more. No one can access your end-to-end encrypted data, not even Apple, and this data remains secure even in the event of a data breach in the cloud.
How does an Apple user turn on ADP?
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Open the Settings app.
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Tap on your name, then tap on iCloud.
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Scroll down and tap on Advanced Data Protection, then turn on Advanced Data Protection.
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Follow the on-screen instructions to review your recovery methods and enable Advanced Data Protection.
Apple advises that users who use Advanced Data Protection are responsible for their data recovery. Apple will not have access to the keys required to recover data, so users need to set up a Recovery Contact or Recovery Key on their account. These additional recovery methods can be used to regain access to data if users ever forget their passwords or lose access to their accounts.
Sources
https://support.apple.com/guide/security/advanced-data-protection-for-icloud-sec973254c5f/web
https://9to5mac.com/2022/12/16/how-to-turn-on-iphone-end-to-end-encryption-messages-icloud/
