(NYPOST) — The Chinese database Victor Gevers found online was not just a collection of old personal details.

It was a compilation of real-time data on more than 2.5 million people in western China, updated constantly with GPS coordinates of their precise whereabouts. Alongside their names, birthdates and places of employment, there were notes on the places that they had most recently visited — mosque, hotel, restaurant.

Note: Read our discussion guidelines before commenting.