Hack a Bike

The "Call a Bike" system of the german railway company "Deutsche Bahn" offers bikes for self-hire in Berlin and other german cities. Sophisticated technology enables customers to rent a bike using their mobile phone. The system is advertised as being "unbreakable" but an article in our latest edition of our magazine "Die Datenschleuder" demonstrates the opposite: "Hack a Bike" uses advanced reengineering to turn the system upside down.