North Korea Rejects U.S. Accusation Over Sony Hack, Proposes Joint Probe

(RTTNews) - North Korea on Saturday rejected the U.S. accusation that Pyongyang was behind a recent cyber attack on Sony Pictures and proposed conducting a joint investigation with the United States.

The attack has prompted the U.S.-based Sony Pictures Entertainment or SPE to cancel the Christmas Day release of its comedy movie entitled "The Interview," which depicts an assassination attempt on North Korea leader Kim Jong Un.

During the year-end news conference on Friday, U.S. President Barack Obama called the SPE's decision to cancel the movie release "a mistake," saying his government will "respond proportionally" to the cyber attack, for which he pointed the finger at the North Korea.

On Friday, the U.S. Federal Bureau of Investigation or FBI claimed its investigation found what it called "enough information" to conclude that the North Korea was "responsible for" the attack, including linking the so-called data deletion malware used in this attack to "other malware that the FBI knows North Korean actors previously developed."