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. http://money.cnn.com/gallery/technology/2015/02/05/worst-hac...