> You decide on a timeframe for deletion of backups (ie. X days). You keep a record of deletion requests you receive for X days. If you need to restore to a bac

> You decide on a timeframe for deletion of backups (ie. X days). You keep a record of deletion requests you receive for X days. If you need to restore to a backup, you delete data again for the users that requested it. All of which requires a good deal of development work.