In <[EMAIL PROTECTED]>, on 10/11/98 at 01:15 AM, Marcus Brinkmann <[EMAIL PROTECTED]> said:
[...] >However, I said that the power chord should be removed. the reason is >that I think you can get the monitor screen, user input etc from >radiation led through the power chord. This may be hard but possible, >someone else might know more. No power cord is needed for this. I can stand outside the building with an antenna array and "tune in" to your screen. The (S)VGA card is basically a tv-transmitter with a non-standard signal. Of course it isn't really designed for transmission, but the card, cable and particularly the monitor "leak" too much. A big antenna and some sophisticated equipment may be necessary, but it is possible. An antenna array can be used for focusing on one particular monitor, so wa don't get confused by the 40 others in the building. How to avoid this? Shielded equipment, or simply a machine without a video card. Displaying only non-sensitive data is safe too of course. Helge Hafting -- ----------------------------------------------------------- [EMAIL PROTECTED] -----------------------------------------------------------
