With the abundance of Bluetooth devices around today, and the lack of security for most of them, not only testing for the existence of Bluetooth devices within your network, but also investigating them, is a very important security function. Keep in mind that Bluetooth is a low power wireless technology, and therefore covers a short distance. Depending on the class rating of the Bluetooth, the distance will vary from 0.5 m (class 4) all the way to 100 m (class 1). So depending on the class and the distance from your Raspberry Pi, you may pick up some devices, but others may be out of reach. Some examples of device you may pick up include iWatches, hands-free ear pieces, and speakers just to name a few.

In this section, we are going to investigate some tools that you can use to not only scan for Bluetooth devices, but also investigate and potentially connect to. Bluetooth devices can not only be compromised, but also can be a very important vector that hackers can use to...