“A team of researchers at the KU Leuven university in Belgium on Monday plan to present a paper at the Cryptographic Hardware and Embedded Systems conference in Amsterdam, revealing a technique for defeating the encryption used in the wireless key fobs of Tesla’s Model S luxury sedans. With about $600 in radio and computing equipment, they can wirelessly read signals from a nearby Tesla owner’s fob. Less than two seconds of computation yields the fob’s cryptographic key, allowing them to steal the associated car without a trace. ‘Today it’s very easy for us to clone these key fobs in a matter of seconds,’ says Lennert Wouters, one of the KU Leuven researchers. ‘We can completely impersonate the key fob and open and drive the vehicle.'”
Source: Hackers Can Steal a Tesla Model S in Seconds by Cloning Its Key Fob | WIRED