Xfinity xFi Advanced Security

It protects devices connected to an Xfinity Advanced Gateway over Wi-Fi or Ethernet, including smart TVs, cameras, speakers, and thermostats. Comcast designed it to work without installing security software on every device. [Comcast xFi announcement](https://corporate.comcast.com/press/releases/comcast-launches-digital-security-to-protect-wifi-devices)

The service uses artificial intelligence and machine learning to monitor network traffic and identify suspicious activity. It can block malicious traffic in real time and show security actions in the xFi app or web dashboard. [Comcast xFi announcement](https://corporate.comcast.com/press/releases/comcast-launches-digital-security-to-protect-wifi-devices)

The original service protects devices connected to the home xFi Gateway, so it is primarily a home-network security layer. Comcast later described xFi Complete as the package that extends safe browsing protection to mobile phones outside the home. [Comcast xFi announcement](https://corporate.comcast.com/press/releases/comcast-introduces-cybersecurity-protection-on-the-go-and-tech-upgrade-program-for-xfinity-internet-customers)