Why do mobile cards need telecom verification codes?

In the real-name authentication of mobile phone number, the user's identity information should be verified.

Telecom verification code is a dynamic verification code sent by SMS, which can effectively avoid malicious attacks and fraud and ensure the safety of users' personal information. Entering the correct telecom verification code can prove that the user really owns the mobile phone number and agrees to use it for real-name authentication. Mobile cards need telecom verification code to protect users' personal information and rights and prevent criminals from using identity information for fraud and illegal activities.