It's "one file" in the sense that you're backing up all your important stuff with one file upload. You can backup as many files as you'd like, but if you name

It's "one file" in the sense that you're backing up all your important stuff with one file upload. You can backup as many files as you'd like, but if you name them the same thing on upload, they will rewrite each other. I like to name my backups by date, so I end up with files named 20121009.backup.tar.gz.enc. Tomorrow it will be 20121010.backup.tar.gz.enc. It is preferred that people encrypt their backups before upload, but it's not enforced. There is no checking of file contents. Let me know if you have any more questions! :)