Bluesnarfing is a device hack performed when a wireless, Bluetooth-enabled device is in discoverable mode. Bluesnarfing allows hackers to remotely access Bluetooth device data, such as the user's calendar, contact list, emails and text messages. This attack is perpetrated without the victim's knowledge.
Bluetooth-enabled devices are vulnerable to bluesnarfing attacks when in discoverable mode because hackers can respond to queries from other Bluetooth-enabled devices, thus gaining unauthorized access to information. Most mobile phone discovery modes are activated by default. Unless the mode is deactivated, a device is susceptible to bluesnarfing attacks. The only way to fully protect a wireless device against bluesnarfing is to turn off Bluetooth. Keeping the phone in "invisible" mode provides some protection.
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