Bluebugging

Definition
Bluebugging exploits a security flaw in the firmware of some older Bluetooth devices to gain access to the device and its commands.

Overview
This attack uses the commands of the device without informing the user, allowing the attacker to access data, place telephone calls, eavesdrop on telephone calls, send messages, and exploit other services or features offered by the device.

Source

 * NIST Special Publication 800-121, at 4-3.

External link

 * Bluebug.