01.02.08
How to Sniff a Cellular Bluetooth Headset
This is a pretty cool idea. It’s worth pointing out that you must first sniff the bluetooth address which is similar to a MAC address and then you must guess the pin. Most devices are apparently set to a default of ‘0000′ so if you’re concerned, set yours to something else. Of course there are only 10^4 or 10,000 unique pin combinations, which isn’t that hard to brute force.