What if the SMS verification code interface is maliciously attacked?

How to prevent SMS interface verification code from being maliciously clicked? Users maliciously click on the SMS verification code, which will not only increase the company's operating costs, but also have a very bad impact on the company's image (generally, SMS messages will bear the company's signature), so we should guard against this behavior. At present, the means of prevention mainly include the following aspects:

SMS sending interval setting-Set the time interval for repeated sending of the same number, which is generally set to 60- 120 seconds.

IP limit-according to your own business characteristics, set the maximum number of each IP sent every day.

Mobile phone number limit-according to the business characteristics, set the maximum number of each mobile phone number sent every day.

Process restriction-SMS verification and user name and password setting are two steps. After the user successfully sets the user name and password, the next step will be SMS verification, and the verification can only be carried out after the successful receipt is obtained in the first step.

Binding pattern verification code-Binding pattern verification code with mobile phone verification code can effectively prevent malicious software from registering.