At this stage passwords are irrelevant. You already moved your data out. This is all there is to it: either you control access, or you don't and then all bets are off.
It is common knowledge that any ai tool will upload whatever it has access to.
So why the drama? It did what it was designed to do and what you consented to by using it.
If you don't want your foot sawn off learn maybe something about tool safety.