The Steam gaming platform has been hit by hackers in both their user forums and user databases.
The hackers defaced the forums on Sunday evening and upon investigation, it was found that the intrusion was more extensive than first thought.
Steam is an online gaming community in which users pay to download games and play them on a PC or Mac (it has also been recently introduced for the PS3).
Users can choose from over 1100 games to play online, with a multiplayer environment and social/chat system provided.
The site is owned by Valve, a game developer, but the games available on Steam are not exclusively made by the company. Many of the big gaming names are also on the site such as EA and Sega.
The intruders managed to access a Steam database which included usernames, passwords, game purchases, email and billing addresses, along with encrypted credit card information.
However, Steam said in a statement that there was no evidence that any of the information was stolen or that “the protection on credit card numbers or passwords was cracked.”
“We don’t have evidence of credit card misuse at this time. Nonetheless you should watch your credit card activity and statements closely,” Steam advised customers.
They went on to say that whilst they only know of a few forum accounts that have been compromised, users should change their account passwords next time they visit the forums.
The service is thought to have over 35 million customers.
The forums remain offline at the moment whilst the company continue their investigation.
It is not thought that any of the accounts for the main site have been compromised at this point, so the company are “not planning to force a change of Steam account passwords (which are separate from forum passwords).”
However, they recommend that users change their passwords for that account too, especially if they use the same password for both the forum and the main site.
Forums will be back online as soon as the extent of the intrusion has been identified and Steam have issued an apology to its users for the inconvenience.