Apple SMS reminds you to change your password.

If the password is not reset, the following problems will occur:

1, unable to log in to iCloud account: iCloud is a cloud service provided by Apple. If you don't reset your password, you won't be able to log in to your iCloud account, resulting in the inability to use iCloud services, including backup, device search, synchronization and other functions.

2. The account is locked: Apple may lock your account for a certain period of time to protect the security of the account. If the password is not reset, the account will be locked, so you need to contact Apple Customer Service to unlock the account.

3. Security risk: If the password has been leaked, the account may be attacked, resulting in personal information disclosure and property loss.