Bluetooth, as one of the essential features of smartphones and laptops, has solved the problem of short-range wireless transmission since its inception. With the updates in versions, the transmission rates have gradually improved, making Bluetooth a standard feature in almost every laptop and smartphone.
Bluetooth has certain advantages over other short-range wireless transmission tools. Firstly, with enhanced signals, the transmission distance can reach up to 100 meters, allowing for bends and not requiring direct alignment, and it can even connect devices in different rooms with multiple connections possible. As the demand for wireless products grows, many users prefer to minimize the number of cables on their computers, and Bluetooth provides an excellent solution.
However, as a transmission method, security is also crucial. Recently, the IoT security research company Armis discovered eight zero-day vulnerabilities in the Bluetooth protocol. What impact will these vulnerabilities have? Theoretically, these vulnerabilities could affect all devices with Bluetooth capabilities, serving any malicious purpose, such as cyber espionage, data theft, ransomware attacks, and even utilizing IoT devices to create botnets. For individuals, it could lead to access to contacts, photos, documents, and the downloading of malicious applications.
Although vulnerabilities in Bluetooth have been exposed, there are still solutions available. It is advisable to turn off Bluetooth when not in use and apply patches when necessary.