Evan Halper reports:
It was a crowded primary field and Tony Evers, running for governor, was eager to win the support of officials gathered at a Wisconsin state Democratic Party meeting, so the candidate did all the usual things: He read the room, he shook hands, he networked.
Then he put an electronic fence around everyone there.
The digital fence enabled Evers’ team to push ads onto the iPhones and Androids of all those attending the meeting. Not only that, but because the technology pulled the unique identification numbers off the phones, a data broker could also use the digital signatures to follow the devices home. Once there, the campaign could use so-called cross-device tracking technology to find associated laptops, desktops and other devices to push even more ads.
Read more on the L.A. Times.
h/t, Joe Cadillic