Be wary of the security risks of turning on mobile phone Bluetooth for a long time. The public security and national security departments issue prevention tips.

Recently, the public security and national security departments in many places have issued safety reminders. There are hidden risks in keeping Bluetooth on mobile phones for a long time. Listen to what the public security department has to say.

The national security department reminds that criminals may exploit loopholes in Bluetooth technology to illegally steal personal information or even commit secret theft, which not only threatens citizens' personal privacy, but also poses risks to national secrets and security. Criminals will use conference signal broadcasting, protocol certification, free Wi-Fi, etc. in public places to induce people to connect to unfamiliar devices. Once a connection is established, there may be security risks such as calls being remotely eavesdropped, device location being obtained, and various types of sensitive personal information being stolen.

Revealing Bluetooth secret methods

Silent pairing or phishing to steal

How do criminals use Bluetooth to turn mobile phones into monitoring tools to steal mobile phone data? Come and hear what cybersecurity experts have to say.

Wang Yuanyuan, member of the Computer Security Committee of the China Computer Society: If your mobile phone or headset has a Bluetooth vulnerability, at this time, the attacker can complete silent pairing within a few seconds, without you needing to click any consent button, it can achieve automatic pairing. At this time, you can activate the microphone on your mobile phone or headset to monitor your conversation. This is a typical attack method.

In addition, experts said that after the Bluetooth of the mobile phone is turned on, it will continue to broadcast signals to the outside world. Criminals can use this signal to determine whether the target is nearby, so as to track the whereabouts.

Wang Yuanyuan, member of the Computer Security Committee of the China Computer Society: The third category is phishing theft. When you are in a public place, you may receive some special Bluetooth pairing requests. Once you click to agree to the pairing, the other party may immediately send you some files, such as photos, or some files that may have Trojans tied to them. If you open them, your phone may have been implanted with Trojans, and the account password saved by the browser on your phone and some important personal information files on your phone may be stolen.

Prevent Bluetooth hidden dangers

Update the system in time and do not pair randomly

Experts said that there are two simple and feasible ways to resist Bluetooth attacks. One is to keep the mobile phone system up to date, and the other is to never pair with unfamiliar devices in public places. If you accidentally receive a Bluetooth file from a stranger in a public place, be sure to use security software to check for viruses.

Source: CCTV News Client