Russian photographer identifies strangers with facial recognition app

Yegor Tsvetkov's project using photos of strangers on St Petersburg metro shows how easy it is to track people

A Russian photographer has proved how easy it is to track down people on social media using facial recognition software.

Yegor Tsvetkov took photos of strangers on St Petersburg's metro and used a facial recognition app which trawls through profiles on VKontakte, Russia's biggest social network, to track down their online profiles.