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 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.
The messages tend to
be anonymous since the recipient has no idea who has sent the bluejack, and the
recipient has no information about the bluejacker, except for the name and
model of the bluejacker’s mobile phone. Because of Bluetooth’s short-range
networking capabilities, bluejacking can only occur between actors who are
within 10 meters of each other, which makes this activity highly
location-dependent. Contrary to what the name suggests, the bluejack
recipient’s phone is not hijacked; that is, the phone is at no time under the
control of the bluejacker.
We conceptualize bluejacking as a violation of
possessional territory. Inspired by Goffman, we propose that the mobile phone
is a possessional territory as a result of the intimacy and continued contact
between mobile phone users and their phones. A possessional territory, in our
usage, is an object that engenders attachment and defense by those who perceive
possession and can be referred to as a “personal effect.” Possessional territories function
“egocentrically”; that is, they move around with their owners who maintain and
exert regulatory control, such as the definition of settings. Since we
characterize the mobile phone as a possessional territory, we adapt the
category of violation, defined as a temporary incursion where gaining control
is not necessarily the goal as a likely and appropriate category of
infringement in this context.
We also propose that
bluejackers are attempting to personalize their experience of public space by
engaging in the violation of others’ possessional territories through the act
of illicit and anonymous messaging. Visitors to public spaces can engage in habitual
behaviors at a specific location, such as picking a favorite parking spot that
one can return to on each successive visit, to gain a sense of familiarity to
locations that are frequently re-visited. These physical environments then hold
enough significance to inspire defense among those who inhabit them and
defensive behaviors, which can range from defining a personal space within a
conversation or while using a tabletop work-surface. Typically, an inhabitant
of a public place tends to personalize a location if he or she feels that the
social conventions of a space allow one the license to mark a territory.
Bluejacking is
technique by which we can interact with new people and has ability to
revolunerise market by sending advertisement about the product, enterprise etc.
on the Bluetooth configured mobile phone so that the people get aware about
them by seeing them on the phone.
Now a day it is used
in sale promotion or sale tools and in dating. This technique is used in many
fields like cinema , train station, shopping malls ,mobile phone shops etc. now
a days there are new tools available in the markets by which bluejacking can be
done. The basic technology behind bluejacking is similar to Bluetooth because
we can do bluejacking in the mobile or PADs or computers or laptop configured
with Bluetooth.
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