Fortune:

Adding strength to the whole proposition is AT&T’s unique aggregate customer data trove and its value in addressable advertising over DirecTV and AT&T’s direct-to-consumer streaming services; ads can also be directed less precisely through the former Turner networks. “Say you and your neighbor are both DirecTV customers and you’re watching the same live program at the same time," says Brian Lesser, who oversees the vast data-crunching operation that supports this kind of advertising at AT&T. “We can now dynamically change the advertising. Maybe your neighbor’s in the market for a vacation, so they get a vacation ad. You’re in the market for a car, you get a car ad. If you’re watching on your phone, and you’re not at home, we can customize that and maybe you get an ad specific to a car retailer in that location."

Such targeting has caused privacy headaches for Yahoo, Google, and Facebook, of course. That’s why AT&T requires that customers give permission for use of their data; like those other companies, it anonymizes that data and groups it into audiences—for example, consumers likely to be shopping for a pickup truck—rather than targeting specific individuals. Regardless of how you see a directed car ad, say, AT&T can then use geolocation data from your phone to see if you went to a dealership and possibly use data from the automaker to see if you signed up for a test-drive—and then tell the automaker, “Here’s the specific ROI on that advertising,“ says Lesser. AT&T claims marketers are paying four times the usual rate for that kind of advertising.

This is a really interesting profile, but this chunk just gives me the heebie-jeebies.

And I work in Online Advertising!