How AT&T’s plan to become the new Facebook could be a privacy nightmare

"“It’s tens of billions of dollars on the table, at a minimum. So of course they want to be in this market,” says Jonathan Mayer, an assistant professor at Princeton University who studies the intersection of technology and law. “It’s plausible because they have untapped data,” he adds. “They have info about what their customers do when they use home internet connections. They also have the data you get when you sign up, and then they can go and buy more information about you.” According to Mayer, telecoms are arguably the only businesses outside of the traditional tech industry that can monitor and analyze large amounts of online activity while simultaneously knowing those users’ real identities."