The next time you use your Apple ID to buy something from the App Store or iTunes, or sign in to your Apple account or iCloud storage, think about what would happen if the bad guys had your password. If this is a scary thought, you can upgrade your account with two-factor authentication.
Was introduced in 2015 with iOS 9 as an upgrade to the two-factor authentication. Step-by-step verification Apple's two-factor authentication introduced in 201
For example, if you want to buy an item through your iPad, the code may appear on your already authenticated iPhone. This type of protection may sound awkward. However, you only need to do this once for your Apple devices after authentication has been enabled ( unless you need to log out, delete the device, or change your password, Apple says) . Future attempts to access or sign in to your Apple account to purchase an app or other item will only require your password.
The process establishes a trusted relationship between an Apple device and your Apple ID, adding that extra level of security. Two-factor authentication is available to iCloud users with at least one mobile device running iOS 9+ or a Mac running OS X El Capitan or later. Follow these steps to enable two-factor authentication on your Apple mobile device and your Apple account.
Enable two-factor authentication
Restart your iPhone or iPad. Go to Settings> iCloud. Touch your Apple ID at the top of the iCloud screen on your mobile device.
Enter your Apple password when prompted. On the Apple ID screen, tap the password and security setting.
On the Password and Security screen, tap to enable Two-Factor Authentication.
An Apple ID Security screen appears, click the Next link.
On the Phone number screen, enter your mobile phone number if it is not already displayed, and if you set it up on your iPhone, you will also be asked if you receive the verification code via SMS or phone call If you set it up on your iPad, you can only receive it via SMS. Let's select a text message Click "Next" or the "Next" link.
You will be prompted to log in using your Apple ID password.
Two-factor authentication is now enabled.
The next time you try to access your Apple account on another device, you will receive an Apple login request on your originally authenticated device approximate location. (Do not worry if the location is not nearby, it's based more on the IP address and network factors than on the physical locale.) Click Allow.
You'll see a six-digit numeric verification code. Enter the code on the device from which you want to access your Apple account. You can now access your account, iCloud content and settings, and any App Store or iTunes content you want to purchase.
Disable Two-Factor Authentication
Given the amount of data stored in your Apple account, two-factor authentication is a good idea. But if it gets too annoying, you can disable it. Sign in to your Apple account online via appleid.apple.com. Scroll down to Security> Two-Factor Authentication and click " Disable Two-Factor Authentication".