Mordechai Guri
Israeli researcher who has made a genre of his own out of getting data off computers that aren't connected to anything.
Since the mid-2010s Guri, at Ben-Gurion University of the Negev, has published a long run of attacks on air-gapped machines. AirHopper (2014) made the graphics card broadcast FM radio to a nearby phone, GSMem (2015) turned the memory bus into a GSM transmitter, and BitWhisper (2015) leaked bits as heat between two adjacent PCs. Then came fan noise (Fansmitter), the hard-drive LED (LED-it-GO), power lines (PowerHammer), Wi-Fi signals from RAM (AIR-FI) and SATA cables (SATAn).
Every one of them assumes the machine is already infected, and bandwidth is often counted in bits per second. That isn't really the point. Each paper chips away at the idea that an isolated computer is a safe computer, and serves as a reminder that the TEMPEST problem never went away.