WASHINGTON (MarketWatch) -- The Federal Bureau of Investigation says that the North Korean government is responsible for the cyber-attack on Sony Pictures SNE, -0.87% 6758, +2.34% . In a statement issued Friday, the FBI said it "now has enough information to conclude that the North Korean government is responsible for these actions." Sony was hit by a cyber-attack after being warned not to release the comedy "The Interview," which depicts a fictional assassination of North Korean leader Kim Jong Un. The release of the film was later canceled.