re tempest in article apr lynx dac northeastern edu angel foghorn leghorn coe northeastern edu kirill shklovsky writes in article apr infodev cam ac uk rja cl cam ac uk ross anderson writes i m afraid this doesn t work either we can pick up laptop screens without any problem i heard somewhere can t name the source that tempest does not necessarily pick up just crts but it can pick up emissions from almost any chip if that is true the kind monitor would not make any difference becuase everything on the screen can be picked up from the video controller can anybody verify or refute this yes that s true tempest is nothing magic it s just listening to any available electromagnetic emissions and using all the analysis techniques you know to separate out the interesting stuff the nice thing about old crts is that they used to put out lots of signal so they re easy to detect and if you do your sync carefully you can watch the output on the monitor in your deceptively marked chevy step van some brands of electric typewriters were even worse in both cases it s especially nice because it gets you the data the user is looking at rather than whatever stuff the paging algorithm is paging out to disk etc with newer quieter equipment there isn t as much signal and it s harder to isolate the fun parts tempest rated equipment has much lower signal levels but everything has vibrations as master chuan said pray for peace bill bill stewart wcs anchor att com at t bell labs m holmdel nj no i m from new jersey i only work in cyberspace white house commect line fax
