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Password system controlled by a glance

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    A new password system based on eye motion could one day lead to a secure security system that can be accessed with only a look.
    The system will be based upon the idea that no two people trace a path with their eyes in exactly the same way. By recording eye motions, the system will be able to analyze two features: fixation--when the eyes linger on an aspect of the screen, and saccades--the quick movements of the eye as it shifts between points. This information will be compared to previous eye-movement data to recognize the unique properties of an individual's eye movements and allow, or deny, access.
    The new system will be superior to conventional eye scanners because those scanners can be fooled by a high resolution photo of the correct eye.
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