@sonhouse saidIt's like there is a bird song produced by comps when stuff runs. I have heard that myself, hooking up computer chips to audio amps just to hear what they sound like.
https://techxplore.com/news/2022-01-raspberry-pi-viruses-devices-software.html
It analyses the electromagnetic signature of a software set like a virus and they leave a fingerprint that can be traced to a particular virus.
Interesting sounds. I guess you can analyze the birdsong and figure out what virus is doing it.
@Contenchess
No, I think this technique is like collecting bird songs. 2 chirps followed by shhhing sound= virus but not where it starts or ends.