What is the use of appleid code SMS?

Authenticate users and protect accounts. AppleID code SMS is a way for Apple to verify user identity and protect account security. When the user is setting or modifying the AppleID, the system will send a short message containing the verification code to the mobile phone number registered by the user.

This verification code usually consists of six numbers. Users need to enter this verification code within a specified time to confirm that they are the legitimate account owner. By using this SMS verification mechanism, Apple ensures that users' accounts are not accessed and used by unauthorized persons. This security measure effectively protects the confidentiality of users' personal information and accounts, and provides convenience for enjoying Apple products and services with peace of mind.