Just as an additional pointer, the German newspaper
Sueddeutsche Zeitung opened up today with a bit on the ease with which 100 million cars worldwide are exposed to a badly implemented remote car key system:
http://www.sueddeutsche.de/auto/funkfernbedienungen-geknackt...Wired has some stuff on it as well: https://www.wired.com/2016/08/oh-good-new-hack-can-unlock-10...