Blamed by the U.S. for the Sony hack, North Korea selects some of its brightest talent for its cyberwarfare program as its conventional forces age and become obsolete, defectors and experts say.
Source: www.wsj.com
North Korea has built up a substantial Cyber warfare capability centered in the unit called Bureau 121 (of North Korea’s military spy agency, the General Bureau of Reconnaissance).
– U.S. Rep Ed Royce (R – CA)
Bureau 21 is suspected for staging as series of disruptive attacks in recent years; on Seoul Korea’s government websites, banks and broadcasters.
Akira Morikawa 