Security expert Bruce Schneier mentions gaze tracking software called Chameleon that helps protect your privacy by trying to ensure that when you look at your computer screen you see what you expect, whereas anyone trying to shoulder surf won’t see what’s really on the monitor but just random text.
Or with a consumer Webcam version PrivateEye the software blurs the screen when you turn away, and uses face recognition to provide a pop up warning when it detects anyone else’s face looking at your monitor.
Clever if it works. Schneier thinks its effectiveness will mostly be a usability issue.
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