I can easily wrap my cell phone in a Faraday cage that I'm pretty sure can't be penetrated by a malicious (or just nosey) baseband processor on the phone. It's

I can easily wrap my cell phone in a Faraday cage that I'm pretty sure can't be penetrated by a malicious (or just nosey) baseband processor on the phone. It's harder to drive a car when it's wrapped in tinfoil.