That paper discusses a type of TEMPEST attack my point is that they don't even need access to power lines to do this sort of attack, enough leaks through the air. http://2po5jdzeffv2kyv3.onion/polyfront/tempestmonitor.png image of a TEMPEST attack carried out against a monitor, ten meters away and through two walls image of the way the military protects from such attacks http://2po5jdzeffv2kyv3.onion/polyfront/tempest2.jpg turn your monitor into a radio broadcast http://www.erikyyy.de/tempest/ causes monitor to leak signals that your radio then picks up and plays as music