Chapter 3 Basics 43
Go to Settings > Privacy. You can see which apps and
features have requested and been granted access to the following information:
•
Contacts
•
Calendar
•
Reminders
•
Photos
•
Bluetooth Sharing
•
Microphone
•
Camera
•
HomeKit
•
Health
•
Motion Activity
•
Twitter
•
Facebook
policy for each third-party app to understand how it uses the data it’s requesting. For more
information, see support.apple.com/kb/HT6338.
Security
Security features help protect the information on iPhone from being accessed by others.
Use a passcode with data protection
For better security, you can set a passcode that must be entered each time you turn on or wake
up iPhone.
Set a passcode. Go to Settings > Touch ID & Passcode (iPhone models with Touch ID) or
Settings > Passcode (other models), then set a 4-digit passcode.
Setting a passcode turns on data protection, using your passcode as a key to encrypt Mail
messages and attachments stored on iPhone, using 256-bit AES encryption. (Other apps may
also use data protection.)
Increase security.
a combination of numbers and letters, you use the keyboard. If you prefer to unlock iPhone using
the numeric keypad, create a passcode using numbers only.
(iPhone models with Touch ID) Go to
Settings > Touch ID & Passcode. See Touch ID sensor, below.
Allow access to features when iPhone is locked. Go to Settings > Touch ID & Passcode (iPhone
models with Touch ID) or Settings > Passcode (other models). Optional features include:
•
Today
•
•
Siri (if enabled, see Siri settings on page 48)
•
Passbook (see Chapter 26, Passbook, on page 12 2)
•
Reply with Message (see When someone calls on page 50)
Allow access to Control Center when iPhone is locked. Go to Settings > Control Center. See
Control Center on page 34.
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