[jagged-chisel]

To be clear: keeping a local copy of some data provides not control over how the remote system treats that data once it’s sent.

[lxgr]

Which is what I said in my second sentence.

[jagged-chisel]

It’s worse than “[they] can see everything.” They can share it.

[lxgr]

Is it not a given that anyone that gets access to a piece of information is also capable of sharing it?