Discussion in 'privacy general' started by HURST, Oct 21, 2008.
While that is a very interesting experiment, it required too many devices to be unplugged in order to filter out the keyboard's transmissions. Who types on their laptop with the screen down (this turns off the LCD on most laptops), no power, and no mouse? The likely hood of this scenario happening in the wild is slim at best.
Also, this is not sudden news:
There are many TEMPEST grade (resistant to interception) peripherals and cables. I myself have created TEMPEST grade computer centers for a government. Honestly, as far as keyboard signal interception, simply wrapping your keyboard cable in a layer of heavy duty tin foil would be enough to block someone from picking up those specific signals without being completely obvious (ie sitting next to you). This, of course, is an option for the extremely paranoid.
Today's average desktop has so many processors, cabling, and peripherals sending out a barrage of signals that an attempt to decode them is highly unlikely to give useful results.
In my opinion, if you're that worried about signal interception, you could always build a Faraday Cage around your computer room.
Actually if someone is that paranoid they might should just unplug their computer.
Apparently it only worked with older keyboards and that newer keyboards were make alot more insulation and were more resistant. I don't think i'd be too worried.