London's Public Bike Data Can Tell Everyone Where You've Been

An anonymous reader writes "I recently posted this article with a few vizualizations and a bit of analysis about the risks associated with open data sets. Thought it might be of interest of Slashdot readers: 'This article is about a publicly available dataset of bicycle journey data that contains enough information to track the movements of individual cyclists across London, for a six month period just over a year ago.'"