Hi guys, when i logged on forums, I saw my user was hacked! And my mood said: Hello! This is the black hawks. Please help! Who is hacking me?

Try to PM a mod or admin. If that doesn't work go on OldCP and if you see a mod of admin immediatly ask them to let them change your password. And they'll PM you your new password so the hacker won't be able to access your account anymore.