A research paper the prototype is based on - https://arxiv.org/abs/2007.00500 https://arxiv.org/abs/2007.00500 An idea ingenious in its simplicity, really - ma

A research paper the prototype is based on - https://arxiv.org/abs/2007.00500 https://arxiv.org/abs/2007.00500 An idea ingenious in its simplicity, really - make a beep and watch for a spike in WiFi traffic. If there's a persistent correlation between the two, then someone's relaying audio to the Internet.