Yahoo teams with McAfee to offer search results security

This April 30, 2008 file photo shows an exterior view of Yahoo headquarters in Sunnyvale, Calif. Microsoft Corp. has withdrawn its $42.3 billion bid to buy Yahoo Inc., scrapping an attempt to snap up the tarnished Internet icon in hopes of toppling online search and advertising leader Google Inc. The decision to walk away from the deal came Saturday May 3, 2008 after last-ditch efforts to negotiate a mutually acceptable sale price proved unsuccessful. (AP Photo/Paul Sakuma, File)