Steam to protect accounts with Sandy Bridge encryption
 

Steam Guard will take advantage of upcoming Intel® Identity Protection Technology (Intel® IPT), an encrypted, hardware-based feature available with the new 2nd Generation Intel® CoreT and Intel® CoreT vProT processors. IPT generates a new numerical password every 30 seconds, integrating into the processor functionality that previously required a separate card or key fob.

http://www.joystiq.com/2011/03/03/va...and-hijack/yea