TED: Lorrie Faith Cranor: What’s wrong with your pa$$w0rd? - Lorrie Faith Cranor (2014)

Summary: Lorrie Faith Cranor studied thousands of real passwords to figure out the surprising, very common mistakes that users -- and secured sites -- make to compromise security. And how, you may ask, did she study thousands of real passwords without compromising the security of any users? That's a story in itself. It's secret data worth knowing, especially if your password is 123456 ...