Company Tracks Iowa Caucusgoers by their Cell Phones

Submitted by Blake on Wed, 03/02/2016 - 09:41

So on the night of the Iowa caucus, Dstillery flagged all the auctions that took place on phones in latitudes and longitudes near caucus locations. It wound up spotting 16,000 devices on caucus night, as those people had granted location privileges to the apps or devices that served them ads. It captured those mobile ID's and then looked up the characteristics associated with those IDs in order to make observations about the kind of people that went to Republican caucus locations (young parents) versus Democrat caucus locations. It drilled down farther (e.g., 'people who like NASCAR voted for Trump and Clinton') by looking at which candidate won at a particular caucus location.

From Company Tracks Iowa Caucusgoers by their Cell Phones - Schneier on Security