Apple's security code is a two-step verification mechanism introduced by Apple, also known as "double authentication". It is a security measure that can protect users' accounts and personal information from being accessed and used by unauthorized people.

How to set Apple's security code?

To set up an Apple security code, you need to open the Apple account settings page, and then follow these steps:

In the Security tab, locate the Two-factor Authentication option, and then click the Open button.

Enter your phone number and choose how to receive the verification code (SMS or phone).

Enter your verification code, and then click the Verify button.

Create your security code. A security code is a set of numbers and letters used to verify your identity. Please make sure that you choose a strong password and keep it in a safe place.

Enter your security code, and then click the Continue button.

What does Apple's security code do?

The role of Apple Security Code is to protect your Apple account and personal information. After enabling two-factor authentication, you need to enter your password and security code every time you try to log in to your account. This means that even if someone knows your password, they can't access your account unless they also know your security code.

In addition, Apple's security code can also be used to verify your identity, so as to carry out some sensitive operations, such as changing your account information, purchasing applications or other operations involving payment.