They supposedly keep the public wifi and your private wifi separate, both with separate bandwidth and networks. I do not really see any harm, and it could be useful if you are roaming around.
They supposedly keep the public wifi and your private wifi separate, both with separate bandwidth and networks. I do not really see any harm, and it could be useful if you are roaming around.
They run a separate IP address for the public WiFi and the person has to sign in/use the app to get access so they know who it is. It is not free WiFi, but a benefit of the cable internet subscription.
I guess I just would not worry about it since you would pretty much have to be in my house to use my WiFi, so it would just be friends that could roam on to it. I do not live on a busy corner of a city where who knows how many people might be walking by.
That means that if someone were to set up a malicious Wi-Fi access point called “xfinitywifi,” devices that have connected to Xfinity’s network before could automatically connect without alerting the user or asking for the password. Alternatively, using a “honeypot” tool such as PwnStar, an attacker could spoof both the “xfinitywifi” SSID and the Xfinity login page—stealing their Xfinity credentials in the process.
http://arstechnica.com/security/2014/06/free-wi-fi-from-xfinity-and-att-also-frees-you-to-be-hacked/
As the article says, you can set up a hot spot of your own called xfinitywifi and use it to harvest all the credentials of passersby...