see more

Joe Stewart, director of malware research at Dell SecureWorks, a unit of Dell Inc., speaks to a colleague in front of a pair of large wall mounted monitors in his office in Myrtle Beach, South Carolina, U.S., Friday, Jan. 18, 2013. Stewart, 42, spends his days hunting for Internet spies. Photographer: Stephen Morton/Bloomberg via Getty Images

Joe Stewart, director of malware research at Dell SecureWorks, a unit of Dell Inc., speaks to a colleague in front of a pair of large wall mounted monitors in his office in Myrtle Beach, South Carolina, U.S., Friday, Jan. 18, 2013. Stewart, 42, spends his days hunting for Internet spies. Photographer: Stephen Morton/Bloomberg via Getty Images