TEMPEST is an acronym from the military mindset. The technology is also known by its inventor's name, van Eck.
You can read more about it by googling up "van Eck phreaking."
With a laptop or a liquid crystal display (LCD) monitor or other low-emission monitor, you make it much harder to read your screen. With an old cathode ray tube, there is a huge amount of radio frequency emission from your monitor.
Yes, you can mask that emission with a Faraday cage. Or you can buy a low emission monitor. Or you can run a high emission monitor in the same room.
You can also work out the technique for a "van Eck detector" which involves searching your neighborhood with a high gain antenna and a television monitor, looking for another signal which matches whatever simple icon you've put up on your computer screen.
'leakage' comes from the cables connecting the pieces of hardware.
Easily fixed with a power supply inside your Faraday cage. The problem is then connecting to the 'net.
There is also R/F emission from your keyboard and from other items within your computer. You are probably worrying too much if you spend much of your time in a Faraday cage and also online, since your online activity almost certainly compromises your privacy in ways that obviate van Eck phreaking.
Regards,
Jim
--- You are currently subscribed to e-gold-list as: [EMAIL PROTECTED] To unsubscribe send a blank email to [EMAIL PROTECTED]
Use e-gold's Secure Randomized Keyboard (SRK) when accessing your e-gold account(s) via the web and shopping cart interfaces to help thwart keystroke loggers and common viruses.
