Every client would need to make its own backups, automatically. In such a situation it would be probably best to have two backups, those plus a backup of the en

Every client would need to make its own backups, automatically. In such a situation it would be probably best to have two backups, those plus a backup of the encrypted data for the clients that fail to do the backups on their own. But you raise a good point: That's difficult to do.