SEOUL, SOUTH KOREA - MARCH 21:  A researcher inspecting for computer viruses at Hauri Inc. the IT security software vendor on March 21, 2013 in Seoul, South Korea. A cyber attack on the computer networks that run three South Korean banks, two broadcasters and an internet service provider in South Korea yesterday has been traced to an IP address in China, despite many experts suspecting the attacks to originate in North Korea. Officials noted that while the attack was traced to an IP address it China may have originated elsewhere and been routed through the country to disguise the attackers.  (Photo by Chung Sung-Jun/Getty Images)