Steam Announces Steam Guard
Gamers familiar with Steam know it as both a retail outlet as well as game publisher, DRM service, and online game storage service. Gamers who purchase games through Steam or register existing games through Steam have access to all of their games on any computer. Simply by logging into a computer and downloading the game allows the gamer to play any game he owns on any PC or PS3. The catch, of course, is that only one login can be active at any time.
The advantage of this scheme is clear: gamers need not lug all their gaming disks and gaming rig around with them. Logging into their account from home, they can play all their games. Log off the home account and head back to their parents for the weekend, it’s easy to log into their computer (after everyone else has gone to bed, of course). There they can download any games registered on Steam and play them. Heading over to an old friend’s house, you can log in there, download a game, and show your buddy how great it is.
Obviously Steam was designed from the ground up to make it easy to access a library of games from any computer. Up until now, however, the only security on that Steam account was a gamer’s login and password. If someone were to steal that information, accessing the library would be simple.
So today Steam has announced it is offering a free new level of security called Steam Guard. Simply put, whenever you attempt to login to your Steam account from an unverified computer, Steam will send an email to you requesting validation.
Full details on the service can be found here: https://support.steampowered.com/kb_article.php?ref=8232-WSGZ-8021&snr=1_41_4__42&l=english