Blue Jacking (Bluejacking)  and Bluetooth explained. Learn how to blue jack a mobile phone. Bluejacking on your mobile phone.

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Blue Jacking (Bluejacking) - Blue Tooth - Bluetooth explained - Blue Jacking Mobile Phones

Bluetooth

Originally Bluetooth was created as a short range wireless protocol that could be used by many everyday electronic objects as a way of communicating. Bluetooth chips can now be found in a wide variety of devices such as mobile phones, pda and laptops. Phone numbers, business cards and messages can now be passed easily from one enabled device to another.

Bluetooth originated from Sweden from where the idea was conceived by technicians at Ericsson. It was decided that a new protocol for short range communication was needed, one that didn't suffer from the limitations of other protocols such as Infra Red. To reduce interference that is often experienced by (IR), the power level was reduced to 1 milliwatt. Bluetooth also uses Spread spectrum signals which have a high resistance to noise as well as jamming. This allows for a sharing of a frequency band with many other transmissions with minimum interference.

Bluetooth is normally effective within a range of around 10 metres. For devices to communicate with each other within this small area, they join a piconet or a personal area network. These devices then announce their presence. Once this has been achieved, it is now possible to transfer data to these devices. As mentioned earlier, business cards, phone numbers, audio files and low resolution video can be transferred.
Blue jacking
So, now we know that information can be transferred to devices within a small area. What can be done? Well, blue jacking is when you create a message as a name within your phone book. The phone book entry could contain a message such as 'Hello, I like your Shoes'. next you then search for any other Bluetooth devices. If you find a device, then you can send your phone book contact containing your message to this device anonymously. Follow the steps below for your basic blue jacking guide:-
 

Acquire yourself a Bluetooth enabled device (preferably a mobile phone)

Create a new phonebook contact containing your message 'I like your Shoes'

Find a busy location (on a Bus, Train, Cafe Bar) The busier, the more likely you are to find a Bluetooth enabled device.

Select your new contact name and send via Bluetooth.

Your device (mobile) will now search for any other enabled Bluetooth devices within a 10 metre range. Your phone will then list all devices found. ( Sometimes the devices can contain information relating to the model.)

 Now select one of the listed devices for your contact info to be sent to.

The fun part now begins, you must casually look around and try and spot the owner of the device !

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