Federal investigators have eyed North Korea as a possible source of hackers that breached the computer networks at Sony Pictures Entertainment, ABC News reported Wednesday.
Jonathan Karl and Pierre Thomas write Sony decided not to release a comedy that depicts a fictional assassination plot against North Korean’s leader after perpetrators threatened an attack on theaters that would show the film.
A group called Guardians of Peace has claimed responsibility for the cyber attack.
“Somebody is playing mind games with [Sony],” Richard Clarke, a former White House counterterrorism adviser, told the TV station.
“I think North Korea has little or no capability to do any physical attacks, commando activity or terrorism in the U.S.,” Clarke added, according to the report.
The New York Times reports intelligence officials believe the attack was state-sponsored hacking and routed from multiple command and control facilities worldwide.
Sony’s hackers also appeared to have used malware and wiping tools that were identified in two previous cyber attacks that occurred in South Korea and Saudi Arabia, according to the newspaper.
Bernadette Meehan, a National Security Council spokesperson, told reporters the U.S. government is assessing potential strategies for responding to the Sony hack.