Comcast just turned millions of Xfinity routers into motion sensors

Comcast has introduced Xfinity Shield, a home protection platform that incorporates a feature enabling routers to function as motion sensors. This new service addresses both physical and cyber security concerns. Xfinity Shield comprises two components: WiFi Shield, which offers security in Xfinity WiFi at no extra charge for Internet customers, and Shield Select, which provides additional security through hardware, AI monitoring, and emergency services for a monthly fee of $15.

A key aspect of Xfinity Shield is the WiFi Motion feature, which transforms existing routers into motion detectors without the need for cameras or conventional motion detectors. By utilizing Xfinity Gateway intelligence, WiFi Motion identifies changes in the home's radio frequency signal between the Xfinity Gateway and a WiFi-connected device, subsequently notifying users via the Xfinity app when unusual activity is detected.

It's important to note that this system does not record videos, capture images, or identify individuals.

However, not all Xfinity routers support motion sensing. The feature is currently available for Technicolor XB7, XB8, XB9, XB10, MXB1, and XER10 models. Users should be aware of the privacy implications, as Comcast may disclose WiFi Motion data to third parties under certain circumstances, such as law enforcement investigations or court orders, without further notification. Users have the option to disable the WiFi Motion feature if they have privacy concerns.