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so, malware on my phone can fake these signals and order 200 gallons of laundry detergent for me?
by zzzeek 9y ago
so, malware on my phone can fake these signals and order 200 gallons of laundry detergent for me?
- JoeAltmaier 9y agoNot sure at all how that would work. Can your phone generate arbitrary backscatter waveforms? I don't think it can.
- TeMPOraL 9y agoIf the malware could access and modify the radio driver then why not? Also, TX-capable SDRs are getting cheaper and cheaper :).
- JoeAltmaier 9y agoRadios are largely hardware in the TX component. Not a lot you can do but point them at data. I'm not sure ANY data pattern looks like backscatter?
- penagwin 9y agoOr the malware on your phone could... idk order 200 gallons of laundry through the amazon app on your phone? Seems a lot easier, I don't think the app requires authentication for purchases. Or malware could just say "Hey Alexa [insert other name here]" and order detergent (This has happened accidentally in commercials).
- zzzeek 9y ago> Or the malware on your phone could... idk order 200 gallons of laundry through the amazon app on your phone? Seems a lot easier, I don't think the app requires authentication for purchases. it was just an example. If arbitrary, easy to replicate signals without an authentication start to represent meaningful device input, then that means anything that can generate these signals (such as maybe your phone, or maybe someone with a transmitter sitting in your driveway) can spoof your intent. It's like if someone could come into your house and start typing on keyboards. and yes the example of speaking arbitrary voice commands to wake up alexas and google devices is a real problem too.