Which is a reason I don't use cloud backups or if I did it would only be one of my backups.
Instead I have backup software (storagecraft shadow protect desktop edition - ditched acronis it was awful as was the support) running which does full/incremental backups of my pc which has raid disks to a 4TB external drive. I then have a small linux server which drags the lastest full/incremental backup from my pc to itself via a secure connection as it does for all my other backups and puts them on its own external drive.
I off site a copy regularly by burning to DVD.
So I should be able to restore to a point in time which is ok and if I have too then I can try and recover other unencrypted files as I need.