FBI concludes North Korea 'responsible' for Sony hack

North Korea was responsible for the devastating cyberattack on Sony Pictures, the U.S. Federal Bureau of Investigation said Friday after a two-week investigation.The attack on Sony occurred in late November and resulted in the theft of thousands of files that, after being leaked online, proved highly embarrassing for the company. Financial documents, legal and business agreements, confidential information on employees and, perhaps most embarrassing of all, the entire email boxes of several se