NY Times: Last month, a hacker stole 32 million passwords from social networking software provider RockYou and briefly posted them on the Web. Researchers analyzed the list, and what they found was disturbing.
The most commonly chosen password, used by nearly one percent of the users, was "123456," and number two was "123245." In all, about 20 percent of people selected text strings from the list of 5,000 most commonly used passwords, a list that includes "qwerty," "abc123" and "princess."
"I guess its just a genetic flaw in humans, Amichai Shulman, the chief technology officer at Imperva, told the NY Times. "Weve been following the same patterns since the 1990s."