"Geofencing" captures the social media posts of people entering a specific area. The technology locates any cellphones that cross into the area by locking onto their geolocation systems, and then records social media posts and sometimes other data from the phones.
Versions of geofencing have been used in politics, including by the Trump reelection campaign and the Texas Democratic Party, and by retailers, who send ads touting sales and products to any nearby cellphones.
The documents also show that the university signed a three-year, $73,500 contract for the use of geofencing in 2016, a contract that ran through the end of October 2019.
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