What is bluebugging, and how is it used to hack Bluetooth-enabled devices?

• 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.

Bluebugging

• A form of hacking
• Lets attackers access a device through discoverable Bluetooth connection.
• Allows hacker to listen to calls, read & send texts & steal & modify contacts
• Threat was first reported in 2004

How does bluebugging hack devices?

• Attacks work by exploiting Bluetooth-enabled devices.
• The device’s Bluetooth must be in discoverable mode - usually default setting.
• The hacker then tries to pair with the device via Bluetooth.
• After connection, hackers can use force attacks to bypass authentication.
• Install malware in the device to gain unauthorized access to it.
• Can happen within a 10-meter radius range of the hacker.
• Also, hackers can use booster antennas to widen the attack range.

Prevention of bluebugging

• Turning off Bluetooth & disconnecting 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
• Making Bluetooth devices undiscoverable from Bluetooth settings
• Modern anti-virus softwares to detect strange and spam-like content

Devices most susceptible to such attacks

• Apps that enable users to connect to their TWS (True Wireless Stereo) devices or earbuds can record conversations.
• The apps of these TWS devices can record conversations.

Prelims Takeaway

• Bluebugging