The worst hacks of all time

Sony Pictures' epic hack is perhaps the worst of all time.

An unrelenting stream of embarrassing memos, hacked employee data and corporate secrets were exposed by hackers. All because a group of hackers, allegedly with ties to North Korea, wanted Sony to cancel its screening of The Interview, a silly Seth Rogen movie about killing dictator Kim Jong-Un.

The company continued to feel the impact of the attacks months after, with downed computers and persistently frozen email.

Now, just weeks after the devastating cyber-attack, Sony Pictures Entertainment co-chairman Amy Pascal is stepping down from her post.