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> electric utilities use the FM radio text channel [..] and their meters pick it up and use it. Hope those updates are cryptographically signed. Would be unfor
by antsar 6y ago
> electric utilities use the FM radio text channel [..] and their meters pick it up and use it.
Hope those updates are cryptographically signed. Would be unfortunate if your car refuses to charge because someone dropped an FM transmitter outside...
- adrianN 6y agoI don't think that's a very realistic threat model. There are already a lot of things you can break with a pirate transmitter, and from what I hear enforcement of the relevant laws is very strict.
- antsar 6y agoI'm imagining a raspberry-pi-sized FM transmitter in someone's bushes causing their (and only their) smart electronics to behave differently. Unless the victim is savvy enough to detect it, or the utility company is concerned enough to investigate, it seems viable (especially as a short-term attack). Good smarthome gear shouldn't cause any harm (or major inconvenience, from that matter) just because the electricity price changes, but we all know the "S" in "IoT" stands for "security"...
- zitterbewegung 6y agoGo try taking a FM transmitter and attempt to disrupt a local FM station. Guess what you can’t because they are transmitting 100x of your power.
- RealityVoid 6y agoIf your transmitter is closer than theirs, you can probably overcome this.
- tengbretson 6y agoIf you're not limited to only the power of transmitter you can legally buy, then yes, you absolutely can.