<ul><li>iOS iCloud backups do not provide a useful backup system. They lack chronological, granular, and redundant capabilities.</li><li>iCloud Keychain only stores the latest version of passwords, lacks granularity, and relies solely on Apple's online iCloud service for restoration.</li><li>iCloud Keychain is more of a sync system rather than a backup system.</li><li>The Notes app, promoted by Apple as a replacement for secure notes in iCloud Keychain, has its own backup issues and limitations.</li></ul>

iOS and iCloud Keychain Are Hostile to Backups

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