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Actually the Feds (aka CIA) were doing this, Van Ecking, the Russian Embassy back during the late 60's and mid 70's. It was even demonstrated on a 60 Minutes segment during the 80's. You can easily by 30+ yards a way and still pick up a signal.
Another thing, the CIA also did the same thing with computer keyboards and could tell exactly which keys were depressed and in what order.
Do you know the name of the program or the software which can audibly calculate keyboard key presses ? I have been told about that but never found the name of the project.
This video is 100% true. The military program is called emsec, eminations security or tempest. They can capture LCD now via ground leakage into a building by tapping into the basement electrical cabinet very easily. Everything plugged into a power point is connected to earth wire. Think about it. Cheers
All the theoretical concepts they explain on the video are true... but: 1. I really doubt about how far the signal can travel... I doubt its more than a couple meters. 2. About the LCD monitors, I guess the concepts you are talking about are the same that PLC technology uses, and It also makes sense, but again, it would be a pain in the ass, the signal would get a lot of noise from other devices operating at the same frequency (I.E., other similar monitors, etc). There are better ways to spy.
I found it a perfectly good "primer" to RF snooping concepts. Tempest was a nice visual aid, the clear mesh showcased some cool materials engineering, and I suspect I have a new foil hat substrate in my future. Triple threat!
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Another thing, the CIA also did the same thing with computer keyboards and could tell exactly which keys were depressed and in what order.
1. I really doubt about how far the signal can travel... I doubt its more than a couple meters.
2. About the LCD monitors, I guess the concepts you are talking about are the same that PLC technology uses, and It also makes sense, but again, it would be a pain in the ass, the signal would get a lot of noise from other devices operating at the same frequency (I.E., other similar monitors, etc).
There are better ways to spy.
I found it a perfectly good "primer" to RF snooping concepts. Tempest was a nice visual aid, the clear mesh showcased some cool materials engineering, and I suspect I have a new foil hat substrate in my future. Triple threat!