Take the 2-minute tour ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free, no registration required.

Most of you might have watched the TV series 'Numb3rs'.

http://en.wikipedia.org/wiki/Numb3rs

In one of those episodes they were discussing about how to capture the contents on the screen of a computer using just an antenna. Now I don't remember in which episode it was. But I am curious to know whether such scenarios possible practically?

http://www.math.cornell.edu/~numb3rs/

Please add that episode name If anyone remembers it.

share|improve this question
add comment

1 Answer

up vote 4 down vote accepted

I didn't see the episode, but it may be referring to "Phreaking", by which the signals from a CRT monitor can be listened-in on (it uses high frequency changing currents to display the information, so these will inevitably result in some RF radiation from which this information can in principle be extracted).

Wikipedia article has a bit more info.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.