What amazes me is the dearth of information about the security of this protocol [Bluetooth]. I'm sure someone has thought about it, a team designed some security into Bluetooth, and that those designers believe it to be secure. But has anyone reputable examined the protocol? Is the implementation known to be correct? Are there any programming errors? If Bluetooth is secure, it will be the first time ever that a major protocol has been released without any security flaws. I'm not optimistic.

Nokia has admitted that some of its Bluetooth-enabled mobile phones are vulnerable to "bluesnarfing", which is where an attacker could read, modify and copy a phone's address book and calendar without leaving any trace of the intrusion.