Sony Pictures is investigating the hacking of its computer systems ahead of the release of a film about North Korea’s leader.
In the movie, two reporters are granted an audience with Kim Jong-un. The CIA then enlists the pair to assassinate him.
North Korea described the film as an act of war and an “undisguised sponsoring of terrorism” and called on the US and the UN to block it.
Pyongyang has refused to deny any involvement in the cyber attack.