Originally Posted by Europa
The problem is that some bluetooth devices use default passcodes that cannot be changed.
True, but my car kit has a designated code and the iPhone is not like that. Besides, even if someone could connect to your headset while it's connected to your iPhone, they couldn't get any data from it since the headset lacks the Bluetooth profiles to
send data to another device, it can only pull. They'd need to pull data from your iPhone directly, and you'd need to enter a passcode for that to happen, and it's unlikely you'll accept a pairing request that you haven't initiated yourself.