[Lowfer] * BPL *

[Alberto di Bene]

>>There is another aspect to this as well. A ham bud of mine was in on the
>>developing
>>technique of reading the Puter screens remotely and decoding what the
>>puter was being used for
>>In other words a simple photo detector could be used to observe the
>>raster and show the
>>remote operator what the screen was showing. You could look into a room
>>with a detecter
>> and just read the raster off the wall reflections
>>

This has been demonstrated as feasible, though not so easy, by the 
former satellite card hacker
Marcus Kuhn. Marcus, born in Erlangen Germany, after obtaining a PhD at 
the University of Cambridge,
has found a job in a firm involved in computer security.  He has an home 
page at http://www.cl.cam.ac.uk/~mgk25/
and a reference to a paper describing that security exposure can be 
found here :
http://www.cl.cam.ac.uk/~mgk25/ieee02-optical.pdf

73  Alberto  I2PHD