Steam Database Hacked, Valve Investigating Possible Theft - Game

Valve said today its Steam database was hacked last weekend and that personal information, including names, e-mails, and encrypted credit card information may have been compromised.

Valve upgrades Steam's security after several games are hacked and filled with malware

Steam (service) - Wikipedia

Steam user database compromised after forum hack - The Verge

Valve To Investigate Epic Game Store's Use Of Steam Files - Game Informer

Valve's online game service Steam hit by hackers - BBC News

How To Recover a Steam Account That Has Been Hacked

Steam Web sites hacked, gamer data exposed - CNET

Steam hacked! : r/Steam

Steam Hack Worse than Thought…Three Months Later