North Korea did it: FBI not budging on Sony hack culprit

FBI officials and data scientists with the U.S. cybersecurity firm Norse met Monday in St. Louis, according to Norse Vice President Kurt Stammberger and an FBI source.

During the three-hour briefing, which was requested by Norse, representatives of the cybersecurity firm shared information they say links several people, including a former Sony employee, to the hack, Stammberger told CNN.

CNN