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I still don’t think companies serve you ads based on spying through your microphone
(simonwillison.net)
this post was submitted on 02 Jan 2025
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Believe it, don't believe it, some people believe the earth is flat, and 5G gives you cancer
404 Media previously reported Cox Media Group (CMG) was advertising a service that claimed to target ads based on what potential customers said near device microphones. Now, here is the pitch deck CMG sent to prospective companies. Google has kicked CMG off its Partner Program in response.
We live in an age where the voice can be processed locally on the phone (we’ve had on-device speech-to-text since the late 90s…), and it’s already listening for a wake word, meaning mic is always hot. It doesn’t need to be streamed and use bandwidth; it can fire off 4K of JSON every few hours and relay more than enough information.
Just program whole dictionary of key phrases and scan the wake word buffer like you are already doing. Easy, stealthy, encrypted. Every voice assistant from a major tech company could (and likely IS) doing this.
This also provides ample opportunity for domestic (or even foreign!) spying my state actors, too.