Valve has just announced the new feature for Steam and the Steamworks tools that will let Steam users only allow one PC to have access to his or her Steam account and all the games on that account. Steam Guard will also allow users to see if any third parties try to log in or change settings in their Steam annount from outside PCs.
Steam Guard will also work with a new feature in Intel's second generation Core PC processors, the Identity Protection Technology. It's a hardware-based feature that generates a new password every 30 seconds. Valve's Gabe Newell is quoted in the press release as saying, "Account phishing and hijacking are our (number one) support issues. With Intel's IPT and Steam Guard, we've taken a big step towards giving customers the account security they need as they purchase more and more digital goods." There's no word on exactly when Steam Guard will be made available for Steam owners.
[Via email press release]