Your Apps Know Where You Were Last Night, and They’re Not Keeping It Secret - The New York Times | iPads, MakerEd and More in Education | Scoop.it
From www.nytimes.com - December 10, 2018 7:14 AM

"Like many consumers, Ms. Magrin knew that apps could track people’s movements. But as smartphones have become ubiquitous and technology more accurate, an industry of snooping on people’s daily habits has spread and grown more intrusive."