Steam Accounts Hijacked Via Huge Security Loophole -- Valve Responds

Over the past week, hackers were able to utilize a security loophole in PC game service Steam to hijack other users accounts, leading to stolen accounts and Valve scrambling to plug the hole. The problem appears to be fixed now, but Valve had to take the Steam store temporarily offline to implement the fix. Steam has an excellent reputation as far as security goes, and that makes something like this all the more important for the dominant service in PC gaming.