Chapter 5 Internet services 48
For more information about iCloud, see the iCloud website. For more information about iCloud
security and privacy, see the Apple Support article iCloud security and privacy overview.
For more information about system requirements for iCloud, see the Apple Support article
System requirements for iCloud.
Note: Some features require a Wi-Fi connection. Some features aren’t available in all countries.
Access to some services is limited to 10 devices.
iCloud Drive
Users can safely store their documents on iCloud Drive and access them anywhere, anytime from
their iPhone, iPad, Mac, or Windows PC. iOS app document libraries are also accessible from a
Mac, so a document started on an iOS device can be edited on a Mac.
Users can also share their Pages, Numbers, and Keynote documents stored in iCloud Drive with
others. Each iOS app shows compatible documents stored in iCloud Drive. On a Mac, iCloud Drive
appears as a folder in OS X. Users drag and drop to add les, organize with folders and tags, and
even search using Spotlight.
iCloud keeps your information up to date on all your devices. Any changes made to a le while
oine are automatically updated as soon as the device is back online.
iCloud Keychain
iCloud Keychain specically keeps website passwords used in Safari and Wi-Fi network passwords
up to date on all your iOS devices and Mac computers set up for iCloud. It can store passwords
for other apps that support it. iCloud Keychain also stores credit card information you save in
Safari, so Safari can autoll it on your iOS devices and Mac. iCloud Keychain also stores Internet
account sign-in and conguration information.
iCloud Keychain consists of two services:
•
Keeping Keychain up-to-date on all devices
•
Keychain recovery
Keeping the Keychain up-to-date on iOS devices and Mac computers requires devices to
participate only after user approval, and each keychain item that’s eligible is exchanged with
per-device encryption via iCloud key value storage. The keychain items are temporary and don’t
persist in iCloud after being synced.
Keychain recovery lets users save their keychain with Apple, without giving Apple the ability
to read the passwords and other data it contains. Even if the user has only a single iOS device
or Mac, keychain recovery provides a safety net against data loss. This is particularly important
when Safari is used to generate random, strong passwords for web accounts, because the only
record of those passwords is in the keychain.
The user’s iCloud Keychain is backed up in iCloud if the user creates an iCloud Security Code.
Secondary authentication and a secure escrow service are important features of keychain
recovery. The user’s keychain is encrypted using a strong passcode, and the escrow service
provides a copy of the keychain only if a strict set of conditions is met.
Important: If the user doesn’t create an iCloud Security Code, Apple can’t help recover the iCloud
Keychain. See the Apple Support article Frequently asked questions about iCloud Keychain.
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