Bluejacking
Bluejacking is the sending of unsolicited messages over Bluetooth to
Bluetooth-enabled devices such as mobile phones, PDAs or laptop computers,
sending a vCard which typically contains a message in the name field (i.e. for
bluedating or bluechat) to another Bluetooth enabled device via the OBEX
protocol. Bluetooth has a very limited range; usually around 10 meters on
mobile phones, but laptops can reach up to 100 meters with powerful
transmitters.
Bluejacking allows phone users to send business cards anonymously
using Bluetooth wireless technology. Bluejacking does not involve the removal
or alteration of any data from the device. Bluejackers often look for the
receiving phone to ping or the user to react. In order to carry out a
bluejacking, the sending and receiving devices must be within 10 meters of one
another. Phone owners who receive bluejack messages should refuse to add the
contacts to their address book. Devices that are set in non-discoverable mode
are not susceptible to bluejacking.
Mobile phones have been adopted as an everyday technology, and they are
ubiquitous in social situations as users carry them around as they move through
different physical locations throughout the day. As a communicative device, the
mobile phone has been gradually taken up in ways that move beyond merely
providing a channel for mediated conversation. One such appropriation is
bluejacking, the practice of sending short, unsolicited messages via vCard
functionality to other Bluetooth-enabled phones. To choose the recipients of
bluejacks, senders complete a scan using their mobile phones to search for the
available Bluetooth-enabled devices in the immediate area. A bluejacker picks
one of the available devices, composes a message within a body of the phone’s contact
interface, sends the message to the recipient, and remains in the vicinity to
observe any reactions expressed by the recipient.
You can download full Bluejacking seminar abstract from here.
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