About 1000 warning radars have been installed in France, used to indicate the actual speed of approaching vehicles by a screen towards the road and warning the riders-drivers about the license points that they would be fined. 


However a French blogger discovered that itĘs very easy to hack the unit by a laptop, a Bluetooth connection and a software freely downloaded beforehand. The four digit code is provided at the manufacturerĘs website and guess what, the installer hasnĘt changed it. The result may be quite spectacular. Any more polite suggestions?