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Well, the device knows exactly what signal it's putting out through the speaker, so it can predict what the microphone will pick up. It doesn't know what someon
by sparky_z 10y ago
Well, the device knows exactly what signal it's putting out through the speaker, so it can predict what the microphone will pick up. It doesn't know what someone with a hoarse voice is about to say.
- banana_giraffe 10y agoThat attack described in the video isn't something the phone is producing and picking up (most phones already ignore what they playback), but rather a sound played by a laptop picked up by the phone. And further, the attack described is a sentence that doesn't sound to a human like "Ok Google" or "Hey Siri", or whatever
- sparky_z 10y agoOkay, that's what I didn't understand. Thanks.