Full details at http://www.wired.com/2015/08/hackers-tiny-device-unlocks-cars-opens-garages/
RollJam is a device I've created that attacks rolling codes in virtually every vehicle and garage as of August, 2015. It agnostically attacks the non-expiring rolling codes that are sent from a wireless remote to a vehicle or garage door. These devices typically use rolling codes to prevent a replay attack, however my device and software evade this security by jamming during the first two attempts to unlock/open, replays the first code so you successfully unlock/open your vehicle, but then saves the second code that was jammed for later use. More details in my Defcon 2015 talk, "Drive It Like You Hacked It".
posted on august 6, 2015