"in the firmware" part is pure speculation. It's fair to assume worst as a security best practice, but pedantically we just don't know if a mal-firmware can in

"in the firmware" part is pure speculation. It's fair to assume worst as a security best practice, but pedantically we just don't know if a mal-firmware can in fact ignore it. There could be like, the kill switch input distributed to radio amplifier and such. A lot of analog components has on-off(usually not-enable) inputs.