Telstra's GameArena site announced today that their user database was recently compromised, and that the usernames and passwords of customers who log in with non-BigPond addresses (such as Hotmail, or Gmail) are likely to have been stolen. Since there's a good chance that a number of users of games.on.net may also be GameArena users, we'd like to take this opportunity to urge any members who have the same username/password combination at both sites to change it immediately. You can change your password via your user control panel.
I did the password reset and was surprised to see it say that it sent an email to my address. I now remember I was signed up on game-arena many years ago for TF2 clan ladder competitions but that password would be one I sure as hell don't use anymore. EDIT: I do hope mine did not get hacked as I am already getting annoying spam emails.