Did North Korea Really Hack Sony?

Either popular theory for the origin of the devastating hack on Sony would make for a great film plot: it’s North Korea’s revenge for an insulting Seth Rogen film, or an inside job by a ferociously disgruntled former employee in league with hacktivists. With prominent and highly regarded cybersecurity experts rigidly divided on that question, it’s a Hollywood blockbuster that’s barely past the credits.

All sides agree that the cyberattack against Sony is unprecedented in its personal nature and maliciously destructive scope, an attack not intended to enrich anyone or gather any sort of corporate or financial intelligence but specifically to humiliate and harm a specific multinational company—a truly massive crime.