Ross Anderson writes: > We have ended that era. You can now use software to cause the > eavesdropper in the van outside your house to see a completely > different image from the one that you see on your screen. In its > simplest form, our technique uses specially designed `Tempest fonts' > to make the text on your screen invisible to the spooks. Our paper > tells you how to design and code your own. > > Ross Anderson This sounds like a troll. But I'll respond anywany. I'm sorry ross. But I designed `temptest fonts' (as you would have them) over two years ago. My research showed them to be quite useless unless you have a well calibrated video card, and most video cards are not. Further, this only deals with Van-Eck radiation issues - tempest is a much bigger field than just van eck. Cheers, Julian.