Bluebugging

Syllabus: General Studies Paper 3

Several smartphones have their Bluetooth settings on discovery mode as it is a default setting, making it easy for hackers to access the phones when they are within 10 metres from the device. This is done through a process called Bluebugging.

What is Bluebugging?

• Bluebugging is a form of hacking that lets attackers access a device through its discoverable Bluetooth connection.
• Once a device or phone is bluebugged, a hacker can listen to the calls, read and send messages and steal and modify contacts.
• It started out as a threat to laptops with Bluetooth capability. 
• Later hackers used the technique to target mobile phones and other devices.

How does Bluebugging work?

• Bluebugging attacks by exploiting Bluetooth-enabled devices. The device’s Bluetooth must be in discoverable mode, which is the default setting on most devices.
• The bluetooth enabled device must also be within a 10-metre radius of the hacker.
• The hacker then tries to pair with the device via Bluetooth. Once a connection is established, hackers can use brute force attacks to bypass authentication. 
• They can install the malware in the compromised device to gain unauthorized access to it.

Which devices are susceptible to Bluebugging? 

• Any Bluetooth-enabled device can be bluebugged. 
• Wireless earbuds are also susceptible to such hacks. 
• Apps that enable users to connect to their TWS (True Wireless Stereo) devices or earbuds can record conversations.

What are the techniques to prevent bluebugging?

• Turning off Bluetooth and disconnecting paired Bluetooth devices when not in use.
• Updating the device’s system software to the latest version
• Limited use of public Wi-Fi.
• Using VPN as an additional security measure.