Local device backups can be large and may contain data no longer present on the device.
Use Finder’s device-management interface or the supported Apple workflow to identify backup device, date, encryption, and status.
Keep a backup when:
- It is the only recovery point.
- The device is unavailable or damaged.
- It contains data deleted elsewhere.
- You need it before an update, migration, or repair.
Encrypted backups require their password. Deleting the backup does not recover that password or affect an iCloud backup.
Remove an obsolete backup only after confirming a newer tested recovery path exists.