A class-action lawsuit filed in San Francisco last week charges Comcast with exploiting its broadband customers by using their in-home routers to send a separate signal for public Wi-Fi hotspots that extend into their neighborhoods, according to a recent San Francisco Chronicle report.

Comcast has pushed its plan to create public Wi-Fi hotspots to 19 cities so far, and reportedly plans to launch 8 million hotspots by the end of the year. I covered the project when it launched in Chicago this summer. Here’s a quick breakdown from that article on how Comcast is approaching the project.

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