Backups & restore points · Encryption and passphrases
What does "That backup passphrase didn't match" mean?
Short answer: The passphrase saved on this Mac doesn't unlock that cloud backup — usually a typo at setup. Click Re-enter passphrase…, type the one the backup was made with and click Reconnect. Nothing is deleted.
It means the passphrase saved on this Mac no longer unlocks that cloud backup — most often a typo when it was first set. Nothing has been deleted.
To fix it: 1. Open Data Backup and find the set marked Needs attention. 2. Click Re-enter passphrase…. 3. Type the passphrase the backup was actually encrypted with and click Reconnect.
Storage Studio checks it against the backup right away ("Checking… a cloud backup can take a minute."). If it matches, the set reconnects to all your existing versions and carries on. If it doesn't, the dialog stays open so you can try another variant.