The Steam video game service, used by 35 million people, has been compromised by hackers.
Its owner and operator, Valve, uncovered an intrusion into a user database while investigating a security breach of its discussion forums.
The attackers used login details from the forum hack to access a database that held ID and credit card data.
Valve said that, so far, it had no evidence that credit cards were being misused or Steam accounts abused.
The defacement took place on 6 November and the Steam forums were taken offline when Valve learned of the attack.FULL NEWS HERE