Just got to have that red-hot Gnarls Barkley single before it even hits iTunes? Good luck. Gone are the days when a simple password was all that stood in the way of a best-selling artist's next hit landing in the wrong hands. The music industry has turned to the next generation of online security to thwart cyberthieves--one that may soon extend to other security-sensitive cybertransactions like banking.
For the past six months, to access the newest releases, you have had to supply something perhaps even harder to replicate than your fingerprints: fine motor skills. Your typing speed and the pressure of...