A simple idea that's surprisingly secure: drawing your own unlock pattern on a touchscreen. Faster and easier to remember than a password, and much harder to guess or crack.
Going as far back as the Bible, and as widely known as the phrase 'Open, Sesame,' passwords are a textual link to our past. But they may not be around much longer.
The first line of cyberdefense is having a good password. What does research say about what that actually means?