Tuesday, 8 September 2009

Bluetooth Car Kits: Who’s listening to my calls?

Many people have had the experience of talking on a cordless or cell phone, and hearing snippets of another person’s conversation, a police radio, etcetera. Therefore, the concern over having someone eavesdrop on your conversation, or even steal data from your mobile phone, because you are using a Bluetooth device, is a legitimate one. However, these kits are designed so that doing so is extremely difficult for hackers.

Bluetooth kits utilize a common frequency for signal; the same frequency used by many mobile phones, cordless phones. However, even though it would seem as though Bluetooth devices would cause, or receive, a lot of interference because of this, the manner in which two Bluetooth devices are paired (or set up to discover and recognize each other) results in no interference. Bluetooth devices must be connected to one another, and once they are they establish a closed network of signal, which is very difficult to hack.

It is possible to take extra steps to protect yourself; if you set your phone and kit so that they are not “discoverable” by other Bluetooth Adapters, it is much more difficult for anyone who might want to steal your information to do so. Also, because Bluetooth devices operate on an extremely low-powered signal, which only has a diameter of about 30 feet, the likelihood that there is someone within 30 feet of you who is trying to steal the use of your phone is very low. So, despite the concerns of the ease of hacking wireless devices, the manufacturers of Bluetooth devices have safeguarded the technology against most opportunities to do so.

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