Glyn Moody writes:
Three years ago, Techdirt wrote about how German politician Malte Spitz obtained six months’ worth of basic geolocation data for his mobile phone. He then gave this to the German newspaper Die Zeit, which produced a great visualization of his travels during this time. That showed clearly how much was revealed from such basic data. Since then, of course, metadata has assumed an even greater importance, as it has emerged that the NSA routinely gathers huge quantities of it about innocent citizens. More chillingly, we also know that people are killed purely because of their metadata. But what exactly does metadata show about us? We now have a better idea thanks to the generosity of Ton Siedsma from Holland. He has allowed researchers to access not just the geolocation data of his mobile phone, but all of its metadata:
Read more on TechDirt.