A fountain operates outside the headquarters building of Symantec Corp. in Mountain View, California, U.S., on Tuesday, Aug. 24, 2010. Intel Corp.' $7.68 billion purchase of McAfee Inc. may put pressure on rival Symantec Corp., the largest supplier of security software, to build hacker-thwarting technology inside corporate computers and forge new alliances to stay competitive. Sales will reach $16.5 billion this year in the global security software market according to Gartner Inc. Photographer: Tony Avelar/Bloomberg via Getty Images