How can Google retrieve the password by SMS if it forgets the password?

Google forgot the password and retrieved it by SMS as follows:

1. First log in to Google account, click ChangePasswordRecoveryOptions in the interface, select China, and enter your mobile phone number. There is an option for China, and China Mobile and China Unicom are also in the list of supported operators on the help page.

2. Secondly, enter the email address or user name for logging into Google account. Complete the text verification process. Enter the characters displayed on the screen, and then click Submit.

3. Finally, we will send an email to the alternate email account provided when you set up your Google account. Follow the instructions in the email to reset the password.