George,

> Gordon,
>
> Even if they pick up electrical signals from all the components of the
> computer, I see no way how that could be used, except for the signals from
> the keyboard (which I know is already used because the keyboard is a
rather
> simple mechanism).


No that is not the case. The tempest system that I am aware of can take the
signal and reproduce the entire active computer onto a slave computer. Once
in, the remote operator is basically sitting in front of your computer just
like you are and is able to watch on the screen what you are doing.

It is not much unlike pointing an antennae and listening to the radio. The
station broadcasts a signal and your tuner intercepts it and plays it on the
radio. In this case, your processor emits its own frequency and that can be
tuned into and played on a computer just like the radio.

But all this is a moot point. The same can be done via your brain and a
tempest like system can be used to turn your eyes into cameras and reproduce
what you see onto a monitor.

I could be just a paranoid kook though...

uspto.gov search 3,951,134 , 1974!!!
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fn
etahtml%2Fsearch-bool.html&r=0&f=S&l=50&TERM1=3%2C9512C134&FIELD1=&co1=AND&T
ERM2=&FIELD2=&d=pall

4,140,997 1979

see also:

patent
4877027
4877027
4858612
3766331
3629521
4,889,526

those patents just scratch the surface of what whas happenning in the 1970s

Gordon
www.katzglobal.com
Anonymous Hosting(tm) Solutions


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