UPDATE 6-U.S. determines N.Korea behind Sony attack as studio pulls movie
December 17, 2014 at 21:50 PM EST
LOS ANGELES, Dec 17 (Reuters) - A U.S. government source said investigators had determined North Korea was behind a cyberattack on Sony Pictures as the studio pulled all plans to release its comedy, "The Interview," about an assassination attempt on the North Korean leader.
