The Javascript location data includes time stamps, which means that a person’s movements can be tracked minute by minute, hour by hour, going back months and, in some cases, years.Ī user’s entire past location history can be tracked back to the first instance of a messaging conversation.
Khanna found that the coordinates were accurate to a staggering five decimal places, allowing him to identify not only a friend’s college dormitory but also the room.
The Marauders Map extension allows users’ locations to be tracked to within a metre of accuracy.
