Ethical Hacking Essentials Practice Test

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Which of the following practices is NOT a countermeasure against Bluetooth attacks?

Keep the device in the discoverable mode
Regularly update firmware
Use strong passwords
Turn off Bluetooth when not in use

The correct answer is: Keep the device in the discoverable mode

Keeping a device in discoverable mode is indeed not a countermeasure against Bluetooth attacks. In fact, doing so can expose the device to a higher risk of attack. Discoverable mode allows other Bluetooth devices within proximity to see your device, making it an easy target for unauthorized connections and potential attacks such as eavesdropping or device hijacking. On the other hand, regularly updating firmware helps ensure that any newly discovered vulnerabilities are patched, strengthening the device's security against potential exploitation. Using strong passwords adds an additional layer of security that can prevent unauthorized access to paired devices. Turning off Bluetooth when not in use is a crucial practice that minimizes the attack surface, as it makes the device invisible to potential attackers, thereby reducing the risk of unauthorized access. Thus, keeping a device in discoverable mode is a practice that increases vulnerability rather than serves as a protective measure against Bluetooth attacks.