This past Sunday, a group called Gnosis launched a massive hacker attack on Gawker media, one of the web's most popular blog networks (Lifehacker, Gizmodo, Jezebel, io9, Jalopnik, Kotaku, Deadspin and Fleshbot). 1.3 million registered users' passwords were compromised, and 188,279 of them were decoded and made public. The biggest takeaway? Many Gawker denizens use downright dumb passwords. (Guess they didn't see their own Lifehacker's story on avoiding such a thing.)