Injecting code with RFI

1. 2019-01-24 at 1:31 AM UTC

   #1
   We'reAllBrownNosers African Astronaut
   Van eck phreaking is passive(mostly?).... Could it be also active? Can you inject intelligible code that the processor can actually read?
   
   Just browsing articles on air-gapped and caged systems and I thought maybe, since you can transmit audio through a speaker without the speaker being powered on, with an RF amplifier because the RF induces voltage/current in the wires.
   
   Directional antenna + amplifier to inject code....? Maybe hide it in normal internet traffic.
2. 2019-01-24 at 7:42 PM UTC

   #2
   

   esbity African Astronaut
   It's possible. I think it'd be more of a government agency that does it though.
3. 2019-01-25 at 4:48 PM UTC

   #3
   We'reAllBrownNosers African Astronaut
   I would imagine a maser would be the most precise way to do this. Hmm.