Will the mobile phone reveal information after turning on Bluetooth?

Mobile phone Bluetooth is flawed and may be attacked, but we can't effectively prevent it because we are choking on food.

In some public places, there are some malicious Bluetooth receiving devices. As long as your Bluetooth is on, it will actively connect to your mobile phone, forcing a deceptive dialog box, such as "Do you agree to automatically back up your address book?" Once you click agree, the hacker will get the phone call records, contact information and other key information.

Precautions: First, we should enhance risk awareness, don't connect unfamiliar Bluetooth devices at will, and try to turn them off when Bluetooth is not used in public places. Second, important data should not be stored in the mobile phone for a long time, and should be cleaned regularly. Third, when you click on any request for authorization to obtain the mobile phone address book, pay attention to identify the authenticity.

Mobile phone Bluetooth will leak information. In the 2020 National Cyber Security Publicity Week, such a test was done on the spot of the special program "Cyber Security e-Guarding". Network technicians use the Bluetooth vulnerability of mobile phones to force a deceptive dialog box to pop up. Once the user clicks "agree", the technician will get the call record and contact information of the mobile phone, and some can even see the balance of the bank card.

Although the disclosure of Bluetooth information is based on agreeing to the relevant request, in order to reduce the risk, it is best to turn it off when not using Bluetooth in public, and don't connect strange Bluetooth devices at will when using Bluetooth.

Finally, when you click on any request for authorization to obtain the mobile phone address book, you must pay attention to identifying the authenticity.