U.S. investigators say an announcement pinning the blame on hackers working for the Pyongyang regime could come as soon as Thursday.
Because of the North Korean regime's tight control of the Internet in the reclusive country, U.S. officials believe the hack was ordered directly by the country's leadership.
North Korea experts say the country has spent scarce resources on building up a unit called "Bureau 121" to carry out cyber attacks.
Earlier Wednesday, Sony pulled the film, which depicts the assassination of North Korea's leader, following a threat that people should avoid going to theaters where "The Interview" is playing.
The country's major theater companies had said they had decided to postpone or cancel next week's showing.
"In light of the decision by the majority of our exhibitors not to show the film "The Interview," we have decided not to move forward with the planned December 25 theatrical release," Sony said in its first statement on the matter.
(CNN) - FBI agents searched the home of veteran diplomat and Pakistan expert Ambassador Robin Raphel in October as part of a counterintelligence investigation, three U.S. government officials told CNN.
As part of the investigation, Raphel's State Department office was searched and sealed, two of the officials said. It's unclear whether she is the target of the investigation, or what agents were searching for. The officials said it is an ongoing investigation and no charges have been filed.