Infamous security researcher Sammy Kamkar last week demonstrated a gadget that can intercept wireless signals to unlock cars and garage doors. Kamkar showed off the device, which cost him just $32 to make, at the DefCon conference in Las vegas. Dubbed "RollJam," the wallet-sized gadget works like this: When the gizmo senses a signal from a key fob used to open a vehicle or garage door, it prevents the signal from reaching the door, while at the same time intercepting and storing the unlock code emitted by the fob.
from TechNewsWorld http://ift.tt/1Wf79tw
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