I remember years ago reading about this being a black hat method for exfiltrating data from computers not connected to a network. Load the "data to sound" prog

I remember years ago reading about this being a black hat method for exfiltrating data from computers not connected to a network. Load the "data to sound" program from an infected USB drive onto the target, then use a separate device to collect the audio without ever having to touch the network directly. There was even a theory about using laser-based acoustic sensing to pull the audio from any window in the room so you wouldn't even have to be in the physically in the building. Interesting stuff.