What is the SMS verification code for?

That is, enter the mobile phone number on the service opening page, and the system will send verification information to your mobile phone. The verification code received by the mobile phone needs to be input into the page again, and the related services can be opened on the mobile phone only after the system is verified.

Generally, the server randomly generates a set of data for your account, that is, a verification code, and then sends the verification code to your mobile phone. Then when you verify on the website, the server saves the verification code sent to you in his database. He checked the verification code you entered with the verification code in the database. In the same situation, even if you pass the verification.