Blue jacking is a technique that allows sending text messages and multimedia content between Bluetooth-connected devices within 10 meters without any charges. It works by creating a contact with the desired message in the name field and sending it via Bluetooth to a nearby device. While it does not allow taking control of the targeted device, it can be used to secretly send messages without the recipient's consent. Some ways to prevent blue jacking include putting Bluetooth in non-discoverable mode, performing a factory reset if previously attacked, avoiding connecting to strangers' devices, turning Bluetooth off when not in use, and setting a password for Bluetooth connections. Popular software tools that enable blue jacking include Blue spam, Meeting point, Freejack, and Easyjacking.

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Blue Jacking
Introduction
Blue Jacking is technique of sending text message between devices that connected with
Bluetooth. Blue jacking also allow sending multimedia content from one device to another
devices. The range of sending content within 10 meters and there is no charge of it because
it is connected with Bluetooth and its free.
Blue jacking sounds like hijacking means Bluetooth hijacking, but a bluejacker never hijacks
anything. Both parties remain in absolute control over their devices, and a bluejacker will
not be able to take over your phone or steal your personal information.
How to blue jack?
1. Go to address book and create a new contact.
2. When creating the contact, enter the message you wish to blue jack into the
contact name part.
3. Save the contact.
4. Long press on contact and choose via send card Bluetooth.
5. Search for Bluetooth device within your range.
6. Select the device which you want to connect.
7. And send the contact to that device via Bluetooth
8. You will get the message “card sent” and then listen for the sms message
tone of your victim’s phone.
How to prevent form blue jacking?
1. Setting the Bluetooth on the right mode
Adjust the setting of Bluetooth to non-discoverable mode. The non-
discoverable mode hides the device from attackers or unknown people

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2. Factory reset of the phone
If your device was perpetrated at some point, it means that attacker’s device
has been already been added as a trusted device on your phone.
3. Keep away from strangers
Make it decline any message or connection request from unknown device.
Most attack happen due to accepting connection request from stranger who
then gets added as trusted devices.
4. Putting of the Bluetooth when it has no use
If you don’t use the Bluetooth frequently, keep it off to avoid your device
from being listed in the sender’s device search list.
5. Set password for Bluetooth
Software Tools for blue jacking
Blue spam
Meeting point
Freejack
Easyjacking