Sony Pictures Entertainment and the F.B.I. on Wednesday were seeking more information about an attack that crippled Sony’s computer systems — including whether North Korea, or perhaps a former employee, was responsible.”The investigation continues into this very sophisticated cyberattack,” the studio said in a statement. It added that a news report by the technology site Re/code, which said that North Korea had been identified as the source of the attack and that the studio planned an imminent announcement, was “not accurate.”
http://www.nytimes.com/2014/12/04/business/sony-pictures-and-fbi-investigating-attack-by-hackers.html