What is Encryption the provider cannot open?

This kind of encryption scrambles your data with a key the provider never holds, so the company running the service cannot read the contents of what it stores. If its servers are exposed, the stolen material stays unreadable rather than turning into plain records, which is why backup and password storage tools describe their setup this way. Artmotion says it applies it, so it stands apart here. Apple Inc., Backblaze Computer Backup, Carbonite Safe and CrashPlan Group LLC do not, and each of those services keeps some ability to reach the data it holds.