How to set the security protection of verification code

Verification code security protection settings are as follows:

1. Bind the graphic verification code with the SMS verification code. At present, many websites are also using this function. Only by filling in the graphic verification code given by the website correctly can the following operations be completed.

2. Limit the process. Only when the user name and password are entered and checked correctly can the verification code be successfully triggered.

3. The user must fill in the complete personal information to get the verification code, and the information must be true and accurate after checking to ensure that a person can only have one account.

4. The time interval for obtaining the verification code for the same number is generally set to about 60 seconds, and the verification code cannot be obtained repeatedly within the specified time.

5. Set the maximum transmission capacity for each IP.

6. Set the maximum transmission volume for each mobile phone number. If the registration is successful, it will not be re-acquired, and if it has been unsuccessful, it will not be re-acquired.