In this Friday, July 5, 2013 photo, a man walks by a sign at Cyber Terror Response Center of National Police Agency in Seoul, South Korea. The hackers who knocked out tens of thousands

 

              In this Friday, July 5, 2013 photo, a man walks by a sign at Cyber Terror Response Center of National Police Agency in Seoul, South Korea. The hackers who knocked out tens of thousands
In this Friday, July 5, 2013 photo, a man walks by a sign at Cyber Terror Response Center of National Police Agency in Seoul, South Korea. The hackers who knocked out tens of thousands of South Korean computers simultaneously this year are out to do far more than erase hard drives, cybersecurity firms say: They also are trying to steal South Korean and U.S. military secrets with a malicious set of codes they’ve been sending through the Internet for years. (AP Photo/Lee Jin-man)