No, not a bug. We don't have an app or an interface - it's just, as you say, a filesystem and there aren't any real guardrails. If your source files are 0000

No, not a bug. We don't have an app or an interface - it's just, as you say, a filesystem and there aren't any real guardrails. If your source files are 0000 and you 'rsync -a' you will achieve just that. As for the original thought experiment, a one way chute for information that you can retrieve out of band is kind of interesting ... so Mallory can't gain anything with your credentials because you intentionally mis-wrote your backups but, of course, you could still formally attest your identity and retrieve them from (whatever organization). Again, just a thought experiment.