We go straight to the source and get Bluetooth executive director Michael Foley to wirelessly transmit an answer to this query.

Bluetooth technology is a short-ranged wireless communications technology to replace the cables connecting electronic devices, allowing a person to have a phone conversation via a headset, use a wireless mouse and synchronize information from a mobile phone to a PC, all using the same core system.

The Bluetooth RF transceiver operates in the unlicensed ISM band centered at 2.4 gigahertz (the same range of frequencies used by microwaves and Wi-Fi). The core system uses a frequency-hopping transceiver to combat interference and fading.

Bluetooth devices are managed using an RF topology known as a “star topology.” A group of devices synchronized in this fashion forms a piconet, which may contain one master and up to seven active slaves, with additional slaves that are not actively participating in the network. (A given device may also be part of one or more piconets, either as a master or as a slave.) In a piconet, the physical radio channel is shared by a group of devices that are synchronized to a common clock and frequency-hopping pattern, with the master device providing the synchronization references.

Let’s say the master device is your mobile phone. All of the other devices in your piconet are known as slaves. This could include your headset, GPS receiver, MP3 player, car stereo, and so on.

Devices in a piconet use a specific frequency-hopping pattern, which is algorithmically determined by the master device. The basic hopping pattern is a pseudorandom ordering of the 79 frequencies in the ISM band. The hopping pattern may be adapted to exclude a portion of the frequencies that are used by interfering devices. The adapting hopping technique improves Bluetooth technology’s coexistence with static (nonhopping) ISM systems, such as Wi-Fi networks, when these are located in the vicinity of a piconet.

The physical channel (or the wireless link) is subdivided into time units known as slots. Data is transmitted between Bluetooth-enabled devices in packets that are positioned in these slots. Frequency hopping takes place between the transmission or reception of packets, so the packets that make up one transmission may be sent over different frequencies within the ISM band.

The physical channel is also used as a transport for one or more logical links that support synchronous and asynchronous traffic as well as broadcast traffic. Each type of link has a specific use. For instance, synchronous traffic is used to carry hands-free audio data, while asynchronous traffic may carry other forms of data that can withstand more variability in the timing for delivery, such as printing a file or synchronizing your calendar between your phone and computer.

One of the difficulties often associated with wireless technology is the process of connecting wireless devices. Users have become accustomed to the process of connecting wired devices by plugging one end of a cable into one device and the other end into the complementary device.

Bluetooth technology uses the principles of device “inquiry” and “inquiry scan.” Scanning devices listen in on known frequencies for devices that are actively inquiring. When an inquiry is received, the scanning device sends a response with the information needed for the inquiring device to determine and display the nature of the device that has recognized its signal.

Let’s say you want to wirelessly print a picture from your mobile phone to a nearby printer. In this case, you go to the picture on your phone and select print as an option for sending that picture. The phone would begin searching for devices in the area. The printer (the scanning device) would respond to the inquiry and, as a result, would appear on the phone as an available printing device. By responding, the printer is ready to accept the connection. When you select the Bluetooth wireless printer, the printing process kicks off by establishing connections at successively higher layers of the Bluetooth protocol stack that, in this case, control the printing function.

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  All wireless devices are vulnerable to a Bluetooth hack by hackers and destroyed by viruses. Bluetooth hacking is a serious issue and Bluetooth enabled devices are in danger of getting hacked, as they are exposed to a few vulnerabilities.
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• Hacking Bluetooth Devices | Bluebugger | Bluesnarfer
  All wireless devices are vulnerable to a Bluetooth hack by hackers and destroyed by viruses. Bluetooth hacking is a serious issue and Bluetooth enabled devices are in danger of getting hacked, as they are exposed to a few vulnerabilities.
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  A warning on the dangers of bluetooth hacking.
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• Bluetooth Hack | Bluescanner | Bluesniff
  All wireless devices are vulnerable to a Bluetooth hack by hackers and destroyed by viruses. Bluetooth hacking is a serious issue and Bluetooth enabled devices are in danger of getting hacked, as they are exposed to a few vulnerabilities.

• Hacking Bluetooth Devices | Bluebugger | Bluesnarfer
  All wireless devices are vulnerable to a Bluetooth hack by hackers and destroyed by viruses. Bluetooth hacking is a serious issue and Bluetooth enabled devices are in danger of getting hacked, as they are exposed to a few vulnerabilities.

Btcrack: BTcrack is a Bluetooth PIN cracking tool.
BTcrack change or reconstruct the password and Link key from
hacked Pairing exchanges.

BlueTest: It is a Perl script which is designed to
extract data from vulnerable Bluetooth devices like the mobile
phone.

The device information is easily accessible and you can
easily browse information of all the supported files. BTBrowser
works on devices that support Java Bluetooth specification.
BTCrawler: BTCrawler is a scanner used for Windows Mobile
devices. It also scans for devices within its range and does a
service query.

Of course, it makes people vulnerable to Bluetooth hack
because of the cell phone units and laptops that have Bluetooth
devices in them. These hackers are now equipped to gain access
to any Bluetooth device made available to them.

Bluetooth works when two Bluetooth enabled devices
communicate with each other. Before they can do that, they need
to be able to find each other first. The Bluetooth device
should be made available so they can be found by the other
Bluetooth device. However, this is also the time when the cell
phone or laptop is vulnerable for attacks.

Most cell phone units are the ones who have fallen victim to
Bluetooth hacking. There are many kinds of attacks and they can
either be in the following forms: bluesnarfing, bluejacking and
bluebugging. Bluesnarfing means unauthorized access to a
Bluetooth enabled device so the person could steal personal
information or files. We can protect ourselves from
bluesnarfing if our phones are not in discoverable mode.
Another type of bluetooth hacking is bluejacking which is
relatively harmless as it only involves somebody sending you an
electronic business card. The one who has sent you that card is
probably in the same room with you. Last but not the least is
Bluebugging, which is another type of bluetooth hacking. It
enables the person to listen in on your phone conversations,
make calls and send or receive text messages using your
account. This is quite similar to the first type but this is
more used on the older types of phones.

Of course, it makes people vulnerable to Bluetooth hack
because of the cell phone units and laptops that have Bluetooth
devices in them. These hackers are now equipped to gain access
to any Bluetooth device made available to them.

Bluetooth works when two Bluetooth enabled devices
communicate with each other. Before they can do that, they need
to be able to find each other first. The Bluetooth device
should be made available so they can be found by the other
Bluetooth device. However, this is also the time when the cell
phone or laptop is vulnerable for attacks.

Most cell phone units are the ones who have fallen victim to
Bluetooth hacking. There are many kinds of attacks and they can
either be in the following forms: bluesnarfing, bluejacking and
bluebugging. Bluesnarfing means unauthorized access to a
Bluetooth enabled device so the person could steal personal
information or files. We can protect ourselves from
bluesnarfing if our phones are not in discoverable mode.
Another type of bluetooth hacking is bluejacking which is
relatively harmless as it only involves somebody sending you an
electronic business card. The one who has sent you that card is
probably in the same room with you. Last but not the least is
Bluebugging, which is another type of bluetooth hacking. It
enables the person to listen in on your phone conversations,
make calls and send or receive text messages using your
account. This is quite similar to the first type but this is
more used on the older types of phones.

Hacking come in many forms and most of our gadgets are
bluetooth enabled. We always have to remember that these people
do not always intend to get personal information but they are
out to do us harm such as spreading of viruses. So be careful
because there are different kinds of people out there, some can
be more evil than others. Description: The article warns us
from the dangers of bluetooth hacking.

Of course, it makes people vulnerable to Bluetooth hack
because of the cell phone units and laptops that have Bluetooth
devices in them. These hackers are now equipped to gain access
to any Bluetooth device made available to them.

Bluetooth works when two Bluetooth enabled devices
communicate with each other. Before they can do that, they need
to be able to find each other first. The Bluetooth device
should be made available so they can be found by the other
Bluetooth device. However, this is also the time when the cell
phone or laptop is vulnerable for attacks.

Most cell phone units are the ones who have fallen victim to
Bluetooth hacking. There are many kinds of attacks and they can
either be in the following forms: bluesnarfing, bluejacking and
bluebugging. Bluesnarfing means unauthorized access to a
Bluetooth enabled device so the person could steal personal
information or files. We can protect ourselves from
bluesnarfing if our phones are not in discoverable mode.
Another type of bluetooth hacking is bluejacking which is
relatively harmless as it only involves somebody sending you an
electronic business card. The one who has sent you that card is
probably in the same room with you. Last but not the least is
Bluebugging, which is another type of bluetooth hacking. It
enables the person to listen in on your phone conversations,
make calls and send or receive text messages using your
account. This is quite similar to the first type but this is
more used on the older types of phones.