Now Playing: 1-16-13 Marketplace Tech: Facebook Joins Search, and Red October Mines Government Data

Facebook's big new effort is a search function that works only within the social media. Could "graph search" actually be a game changer? Perhaps -- and the idea that it could may be the reason Yelp's stock took a dive yesterday. Meanwhile online security experts have discovered a form of malware that's been operating for five years. Its name? Red October.