Snoopers won’t stand a chance if you enter your PIN using only eye movements.
A system that uses infrared light to track the position of your eyes as you look at numbers and letters displayed on a screen could soon make that possible. "While it is simple to look over someone’s shoulder to tell what keys they are pressing, it’s harder to tell exactly where on the screen the user is looking," says Manu Kumar, who helped create the system, called EyePassword, at Stanford University in California.
EyePassword works by shining an invisible infrared beam on the user’s face. That produces a reflection or "glint" in their eye that stays in the same spot no matter where they look, in contrast to their pupils, which move whenever their gaze shifts. A camera tracks the relative positions of the glint and the person’s pupils and uses this to work out what …
source: NewScientist (requires membership) more at: engadget.com
