Facebook apps know a lot about you: Here's how you can change it

"Its free, and unfortunately, that means we’re actually the product, not the customer," said Kevin Hayes, of what he believes Facebook users tend to forget. As Director of Information Security at Wayne State University, Hayes told 7 Action News, Facebook users are in the dark about the extent to which the site, a strictly ad sponsored platform, is extracting user information for targeted advertising. 7 Action News sat down with the academic to talk about the flourishing concerns in the wake of the revelation that a third party consulting firm, Cambridge Analytica, had accessed and improperly stored troves of Facebook's user data.