Tangentially, I seem to recall recently (2020 sometime) where someone made custom firmware for a laptop's wifi card that, since the computer was set up with a c

Tangentially, I seem to recall recently (2020 sometime) where someone made custom firmware for a laptop's wifi card that, since the computer was set up with a central hub for most of its peripherals, could sniff data flowing from things like USB stuff and, more interestingly, its keyboard. It ended up as an extremely elegant keylogger. Cool stuff.