The wireless protocol named Bluetooth is enjoying growing popularity in part due to regulations around the world that require drivers to use hands-free headsets when they’re on the phone. Automobile manufacturers have begun building these units into new models, and do-it-yourself kits abound; but unfortunately, they’re not always configured securely.

The result? The Car Whisperer, an auditing tool from security researchers at the Trifinite Group, which includes several noted Bluetooth researchers. The Car Whisperer tool makes it possible to “inject audio data” into a poorly configured Bluetooth device and also to eavesdrop on conversations held inside the car.

The group’s blog contains this and many other tools designed to compromise poorly protected Bluetooth systems. The Trifinite associates are passionate about spreading the word on Bluetooth security, making it A Site to See [1].