Found an interesting paper by Nicolas Christin and his group at CMU, available here. The authors examine the encrypted passwords across the entire university and run algorithms to guess the passwords. They break down the demographics along with how many attempts it took to guess the password. What's interesting? Check out Figure 1! Business students have the most guessable passwords, while Computer Science students have the least. I encourage all to check out this paper, or at least browse through the graphs!