How to Double Lock Your iPhoneby Avery Martin
Locking your Home screen to prevent unwanted eyes from viewing your content provides one level of security; setting a second password to prevent access to the iPhone's system settings secures your device further. After you set the a passcode for the Lock screen, you should also configure the length of time allotted before your device automatically locks. The system timeout to enable the passcode prompt automatically starts as low as one minute or as long as "Never."
Tap the "Settings" app. The Settings app holds the key to most of your iPhone's configuration settings.
Select "General" and choose the "Passcode Lock" option.
Tap "Turn Passcode Lock On," and then type and confirm your four-digit Passcode. Set the "Simple Passcode" toggle switch to the "On" position before selecting the option to turn on your passcode if you want to use an alphanumeric code.
Tap the "General" button to return to the General screen.
Select the "Restrictions" option.
Tap "Enable Restrictions." Enter and confirm your passcode.
Tap the "General" button and select "Auto-Lock."
Set a timer to automatically lock your iPhone. Select an option in one-minute increments up to five minutes or "Never."
- Information in this article applies to iOS 6. It may vary slightly or significantly with other versions or products.