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Context

• Cybersecurity experts note that apps that let users connect smartphones or laptops to wireless earplugs can record conversations, and are vulnerable to hacks. Through a process called bluebugging, a hacker can gain unauthorised access to these apps and devices and control them as per their wish.

What is bluebugging?

• It 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 for laptops with Bluetooth capability. Later hackers used the technique to target mobile phones and other devices.
• Wireless earplug apps are vulnerable to hacks.

How does bluebugging hack devices?

• Bluebugging attacks work by exploiting Bluetooth-enabled devices. The device’s Bluetooth must be in discoverable mode, which is the default setting on most devices. 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 malware in the compromised device to gain unauthorised access to it.
• Bluebugging can happen whenever a Bluetooth enabled device is within a 10-metre radius of the hacker. However, according to a blog by VPN service provider NordVPN, hackers can use booster antennas to widen the attack range.

How can one prevent Bluebugging?

• Turning off Bluetooth and disconnecting paired Bluetooth devices when not in use, updating the device’s system software to the latest version, limiting the use of public Wi-Fi, and using VPN as an additional security measure are some of the ways to prevent bluebugging.

https://www.thehindu.com/sci-tech/technology/what-is-bluebugging-and-how-is-it-used-to-hack-bluetooth-enabled-devices/article66191220.ece#:~:text=It%20is%20a%20form%20of,for%20laptops%20with%20Bluetooth%20capability

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