Mark Zuckerberg, certified tech genius worth 51.4 billion dollars, was hacked because he has a ridiculously stupid password. The coding prodigy who (according to The Social Network, at least) scored perfectly on his SATs, protected his Twitter, Instagram, and Pinterest profiles with the word "dadada." No capitals, no numbers, no special characters. Just "dadada," according to a boast by the hackers reported by Yahoo! Finance.

It could either be a reference to Dada, the post-World War I absurdist art movement, or "Dada," a common baby term for dad. Either way, it's a pretty dumb choice for password. Apparently, the password was stolen among 100 million others by hackers in 2012 and leaked last month.