The Security Risk of Keyboard Clicks
Gudlyf writes "First the blinking LED security issue, now this: listening to tell-tale keyboard clicks to decipher from afar what a person is typing. This isn't limited to just computer keyboards -- ATM's, telephone keypads, security doors, etc. Apparently with $200 worth of sound equipment and software, these keyboard clicks can be translated to within 80% accuracy. Of course, a whole lot of this is just theory."
You could have the ATM read out the numbers to the blind person as they type them in...
:)
I thought the idea was to make it so the key combination could not be determined audibly. Having a computer voice say "six five nine two" pretty much defeats that purpose.