Bluejacking only works because many phones have Bluetooth switched on by default, are discoverable and have beamed contact reception enabled. It was once thought that “beam contacts” would replace the exchange of business cards at meetings, but it never really caught on. It simply makes use of the “beam contacts” facility that exists somewhere in the menu structure of most mobile phones.
Bluejacking is merely using Bluetooth to pop up a message on someone else’s phone, generally pretty harmless and legal unless it’s employed to harass or send distressing messages. The first thing to note is that what I’ve just described is properly called “bluesnarfing”, although most press reports of Bluetooth abuse prefer the term “bluejacking” because it sounds more sensational by association with hijacking and carjacking.
