A group of British scientists have cracked the codes used to start many luxury car marques
The High Court imposed an injunction against one of the computer scientists from the University of Birmingham to prevent him from publishing a paper that could reveal the codes to brands such as Porsche, Bentley’s and Lamborghinis. Volkswagen uses the cryptography system in the vehicles that it manufacturers.
http://www.theguardian.com/technology/2013/jul/26/scientist-banned-revealing-codes-cars