How to Hack a BMW. Details on the security flaw that affected 2.2 million cars

0x2A writes: BMW recently fixed a security hole in their ConnectedDrive software, which left 2.2 million cars open to remote attacks. Security expert Dieter Spaar reverse engineered the system and found some serious flaws, including using the same symmetric keys in all vehicles, not encrypting messages between the car and the BMW backend or using the outdated DES.