In the case of malicious chargers I believe Apple already authenticates peripherals to make data capture more difficult. If you’re unauthenticated then you will

In the case of malicious chargers I believe Apple already authenticates peripherals to make data capture more difficult. If you’re unauthenticated then you will not be able to do much unless explicitly authorised. Of course, none of that matters if you can reflash the device or exploit the boot ROM.