Bluetooth Hacking
Currently no such major software has been developed to stop the hacking however newer devices are built taking into account threats and experts believe that they will prove to be more secure. Regardless of all this, there are always some precautions that can be taken i.e.
Always keep Bluetooth off when it is not required, and rename the device to something generic, rather than keeping the default name which is device manufacturer and model number,also make sure that you have the original PIN code of the phone with you so that in case your phone gets hacked you can reset it to factory settings but only at the cost of erasing all your data.
All this helps in preserving privacy since an attacker can spot the device physically and match it with discovered list. Bluetooth is a useful connectivity technology, so use it, enjoy it, but play safe!
(Courtesy: Hassam,Hubpages.com)