👀 More big tech tools to monitor the inside of your HOME

[Comcast Xfinity Shield] can detect movement inside the home by picking up on changes in the radio frequency signal between the Xfinity Gateway and a connected device. If the system detects any unexpected changes, you can receive immediate notification via the Xfinity app."

https://www.engadget.com/2239010/comcast-new-home-protection-setup-uses-wifi-to-detect-motion/