Managing Backed Up Devices : Change a Device Backup's Passphrase
  
Change a Device Backup's Passphrase
If your backup is passphrase protected, you are prompted for the passphrase in order to access the backup, as described in Passphrase Protecting Backups.
A lock icon indicates that the backup is passphrase protected.
To change the passphrase:
1 Click the passphrase icon .
The Change passphrase window is displayed.
2 Enter the existing password and then the new password and its confirmation.
Note: Remember to keep your passphrase in a safe place. If lost, it cannot be recovered.