N.S.A. Breached North Korean Networks Before Sony Attack, Officials Say (Published 2015)N.S.A. Breached North Korean Networks Before Sony Attack, Officials Say WASHINGTON — The trail that led American officials to blame North Korea for the destructive cyberattack on Sony Pictures Entertainment in November winds back to 2010, when the National Security Agency scrambled to break into the computer systems of a country considered one of the most impenetrable targets on earth. Spurred by
