Triangulation of mobile phones was developed by Cambridge Positioning Systems, back in 1993. It's been part of mobile networks for a long time so telcos have h

Triangulation of mobile phones was developed by Cambridge Positioning Systems, back in 1993. It's been part of mobile networks for a long time so telcos have had a lot of time to figure out ways to extract money from location data. https://www.mrao.cam.ac.uk/~pjds/temp/index.htm https://www.mrao.cam.ac.uk/~pjds/temp/index.htm https://www.theguardian.com/technology/2000/aug/17/efinance.business https://www.theguardian.com/technology/2000/aug/17/efinance....