They were able to get details to create duplicate car keys, as well as the codes needed to program the keys, linking them to the Jeep Wranglers, because the key designs and codes were stored in a proprietary database which was hacked. After using the duplicate key to get inside the car, the Hooligan members used a handheld electronic device to pair the key with the car’s computer to turn the engine on and drive off. Such key programmers are relatively cheap, with some costing less than $100, and readily available online. It appears the security vulnerability may have been the integrity of the database. Experts say that widespread hacks of cars may soon become a reality.