Bluetooth security question

[F22]

I've only recently gone Bluetooth with the 920 and a Blackberry 8830.

So I've got questions about security and I figured that there are some experienced Bluetooth folks on this forum.

If I've paired my bb8830 with my Tomtom920 and with some XX Model earphone, can anyone with those same devices use/link/pair/whatever to MY BB or is there some other "security" or pairing/coding that was involved initially. If my phone is on and in my pocket and someone has the same model XX earphone can they dial my phone? Can another Tomtom920 copy my contact list?

Should I turn off "discoverable" unless I'm pairing some new device?

What have I failed to ask in this same vein? (g)


Thanks in advance.

 

[96ss]

Your phone, headset & TT are only discoverable for under 60 seconds or so. And there is the distance problem. There are approx three different distances. Up to 100 feet ($$$$), up to 30 feet, and around 10 feet (which is probably what TT is). So don't worry about anyone walking around trying to hook up with your BT devices. And it is vain.