North Korea's Internet shut down just days after the U.S. blamed Kim Jong Un's government for the hack on Sony.
So how exactly did hackers break into Sony's computer system?
Tom Foreman is OutFront.
Erin Burnett OutFront airs weeknights at 7 p.m. ET. Designed to showcase Erin's unique style--casual, smart, and confident--OutFront stays ahead of the headlines, delivering a show that's in-depth and informative.