What is the use of Apple id SMS?

System: iOS 16. 1.2

Apple id code SMS is used to ensure the security of accounts and devices. Apple id code SMS is a random sequence consisting of 6 Arabic numerals, which is used to verify the ownership of devices and accounts. Starting from iOS 10.3, Apple started double authentication to improve the account security of Apple ID. When applying for an Apple ID, it will send code information to the mobile phone number or device bound to the account to verify the ownership of the account and device.

Apple id is an authentication system. AppleID is an authentication system launched by Apple for its iWork, iTunesStore, AppleStore and other products. As a full-featured account, AppleID allows users to access various resources of Apple. Because AppleID can be used for a variety of products and services provided by Apple, it can also be called Apple account, MobileMe account, Mac account, iTunesStore account and iChat account.

Apple mobile phone id password format must be a combination of English uppercase and lowercase letters and numbers, with at least 8 digits. Apple's AppleID format is summarized as email account number @ plus email domain name extension. Users can apply by QQ email, 126 email, 139 email, etc. It is recommended to use a stable mailbox, and you can retrieve the password of AppleID through the mailbox in the future.