User Guide

Chapter 3 Basics 45
Note:If you turn iPhone o after setting up the Touch ID sensor, you’ll be asked to conrm your
passcode when you turn iPhone back on and unlock it the rst time. You’ll also be asked for your
Apple ID password for the rst purchase you make in the iTunes Store, App Store, or iBooks Store.
Delete a ngerprint. Tap the ngerprint, then tap Delete Fingerprint. If you have more than one
ngerprint, place a nger on the Home button to nd out which ngerprint it is.
Name a ngerprint. Tap the ngerprint, then enter a name, such as “Thumb.”
Use the TouchID sensor to make a payment in the iTunesStore, AppStore, or iBooksStore.
When purchasing from the iTunes Store, App Store, or iBooks Store, follow the prompts to enable
purchases with your ngerprint. Or go to Settings > Touch ID & Passcode, then turn on iTunes &
App Store.
Use TouchID for Apple Pay. (iPhone 6 or iPhone 6 Plus) Go to Settings > Touch ID & Passcode
to ensure that Apple Pay is enabled with your Touch ID. For more information see Apple Pay on
page 132.
iCloud Keychain
iCloud Keychain keeps your Safari website user names and passwords, credit card information,
and Wi-Fi network information up to date. iCloud Keychain works on all your approved devices
(iOS 7 or later) and Mac computers (OS X Mavericks or later).
iCloud Keychain works with Safari Password Generator and AutoFill. When you’re setting up a
new account, Safari Password Generator suggests unique, hard-to-guess passwords. You can use
AutoFill to have iPhone enter your user name and password info, making login easy. See Fill in
forms on page 67.
Note:Some websites do not support AutoFill.
iCloud Keychain is secured with 256-bit AES encryption during storage and transmission, and
cannot be read by Apple.
Set up iCloud Keychain. Go to Settings > iCloud > Keychain. Turn on iCloud Keychain, then
follow the onscreen instructions. If you set up iCloud Keychain on other devices, you need to
approve use of iCloud Keychain from one of those devices, or use your iCloud Security Code.
Important:If you forget your iCloud Security Code, you have to start over and set up your iCloud
Keychain again.
Set up AutoFill. Go to Settings > Safari > Passwords & AutoFill. Make sure Names and Passwords,
and Credit Cards, are turned on (they’re on by default). To add credit card info, tap Saved
Credit Cards.
The security code for your credit card is not saved—you have to enter that manually.
To automatically ll in names, passwords, or credit card info on sites that support it, tap a text
eld, then tap AutoFill.
To protect your personal information, set a passcode if you turn on iCloud Keychain and AutoFill.
Limit Ad Tracking
Restrict or reset Ad Tracking. Go to Settings > Privacy > Advertising. Turn on Limit Ad Tracking to
prevent apps from accessing your iPhone advertising identier. For more information, tap About
Advertising & Privacy.