Wireless Routers as Motion Detectors

<p>Comcast has <a href="https://gizmodo.com/millions-of-comcast-wifi-routers-can-now-tell-when-youre-moving-around-the-house-2000800324">added</a> motion detection as a feature to its wireless routers:</p> <blockquote><p>The feature sends push notifications to users when motion is detected near a connected device, such as a TV or printer. It has different settings for when people are home, asleep,