I have a database snapshot taken before bad guys overtook the database. So there's no reason to think payout addresses have been modified. Any change of wallet on pool profile requires email confirmation by account owner so I think we're on safe side here.
Unfortunately the user database can be considered as compromised, so the attacker knows user's emails :-(.
let me rephrase: were the passwords securely hashed?
And salted?
Not to preach to you, but this is a perfect example why everyone should use unique passwords on every website.
I personally use 20+ character randomly generated passwords thanks to LastPass. Makes secure password management so easy.