Transcript for US Officially Blames North Korea for Sony Hacking
Sources tell ABC news half percent a new warning to Sony praising the company's decision to cam the controversial movie the interview. I yeah but threatening it could release more damaging information if executives quote make additional trouble with the US government officially blaming North Korea today for that unprecedented cyber attack on Sony. Sources say the masterminds we're likely part of a North Korean spy unit called bureau 121. Its so called cyber warriors recruited his children and trained for years at this military installation. Likely routing the electronic attack and threats through computers around the world. The president considers it to be. A serious national security matter and it's being treated as such. This is one of the world's biggest star says Hollywood should've taken a stand. George Clooney telling deadline dot com in an exclusive interview we can not be told we can't see something by Kim Jong rude of all expletive people. We have allowed North Korea to dictate content. That is just in Spain. Clooney claims last week you circulated a petition asking other A Lister is to support Sony to ignore the criminals demands and release the movie he says not one person would sign on. Adding this is just where we are right now how scared this industry's been made. A lot of actors and directors and producers are frustrated that North Korea. Convince Sony not to release this movie but I think on the studio side and they wanted to stand. And just yesterday Sony suspended its studio tours indefinitely but wouldn't say if it was in response to the threats. Marcy Gonzales ABC news New York.
This transcript has been automatically generated and may not be 100% accurate.