in this case, it is probably because the information and phone number of the mobile phone have been leaked.

In this case, you can do the following:

1. Check whether the SMS blacklist function is turned on. Whether the third-party security management software was used to intercept the short message, and the function was turned off or uninstalled. If it doesn't work, please back up the data in your phone and restore the factory settings.

2. download the application of the national anti-fraud center and intercept it technically.

3. Call the customer service of China Mobile, China Unicom and China Telecom. The key is to see which operator's phone number you use and ask them to solve it through technical support.