Ex-Worker Theory Casts Doubt on North Korea as Sony Hacker

At least one former employee of Sony Corp. (6758) may have helped hackers orchestrate the cyber-attack on the company’s film and TV unit, according to security researcher Norse Corp. The company narrowed the list of suspects to a group of six people, including at least one Sony veteran with the necessary technical background to carry out the attack, said Kurt Stammberger, senior vice president.