Sources with first-hand knowledge of the investigation said officials have n't ruled out the possibility that a Sony insider or former employee aided in the attack . U.S. government officials are preparing to blame North Korea as the culprit behind the NSA hack . The Obama administration is holding high - level meetings to discuss the matter .
U.S. government officials are preparing to blame North Korea as the culprit behind the NSA hack . The Obama administration is holding high - level meetings to discuss the matter .