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Xfinity using WiFi signals in your house to detect motion
(www.xfinity.com)
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this post was submitted on 01 Jul 2025
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If you are interested I can try and find the article on it but a few years ago an article came out where they were able to use wifi signals with enough accuracy that they could see a password that you were typing on your keyboard!!
But basically they use the way the wifi signal bounce off things to make an image in much the same way that echo location works
That is nuts. I've always liked hardwired better but hard to do that with a mobile phone.