Despite a lack of compelling evidence, the world has mostly assumed that villainous North Koreans broke into Sony last year, causing one of the biggest digital meltdowns of all time. But many experts remain skeptical, including one veteran hacker who says he's positive the Russians did it.

An Anonymous hacker tried to use stolen source codes to extort $50,000 from antivirus firm Symantec. Turned out it was a law enforcement sting. Now Anonymous is in spin mode, claiming the hacker was trying to raise money for poor kids in India.