Millions of Volkswagens can be broken into with a wireless hack

Millions of Volkswagens built over the past 20 years can be broken into with a hack that exploits the cars’ remote control key systems, security researchers have found.
Most VWs built since 1995 use one of a handful of electronic “master keys” to remotely open and lock the doors, and those keys can be extracted by reverse engineering the firmware, the researchers wrote in a new paper. 
That alone isn’t enough to break into a car -- the master key has to be comb