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Comcast has launched WiFi Motion, an opt-in feature for newer Xfinity gateways that uses changes in Wi-Fi signals to detect movement inside a home and send alerts through the Xfinity app. The capability is available at no extra cost on compatible devices including the XB7 and newer models, and works by monitoring signal disruptions between the gateway and selected connected devices rather than relying on cameras or dedicated sensors. Comcast is positioning the feature as a basic home security tool that can notify customers when motion is detected.
The rollout has raised privacy concerns because the motion data is generated from activity inside customers’ homes and Comcast says that information from WiFi Motion may be disclosed to third parties in connection with law enforcement investigations, disputes involving Comcast, court orders, or subpoenas. Comcast says the system is intended to detect motion only and not identify specific individuals or precisely track their location, but the launch highlights how Wi-Fi-based sensing research is moving into mass-market consumer networking products.
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Comcast said an August 18 update to the Xfinity app enabled the WiFi Motion capability for Xfinity customers. The update allowed eligible users with compatible Xfinity gateways to turn on the opt-in motion-detection feature in the app.
TidBITS reported that Comcast's WiFi Motion relies on proprietary technology from Cognitive Systems rather than the emerging IEEE 802.11bf Wi-Fi sensing standard. The report also said Comcast stores WiFi Motion event data in cloud systems.
Comcast rebranded its WiFi Motion feature as part of Xfinity Shield, a bundle that combines Wi-Fi-based motion detection with cybersecurity protections built into the Xfinity Gateway router. The change expands the feature's product positioning beyond standalone motion alerts in the Xfinity app.
Comcast said information generated from customers’ use of WiFi Motion may be disclosed to third parties without further notice in certain circumstances. The cited cases include law enforcement investigations or proceedings, disputes involving Comcast, and compliance with court orders or subpoenas.
Comcast announced WiFi Motion, an opt-in feature for newer Xfinity gateways that detects motion in a home by monitoring disruptions or changes in Wi-Fi signals and sends alerts through the Xfinity app. The feature is available at no extra cost for eligible customers and is positioned as a basic home security capability without requiring cameras or additional hardware.
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