Lock Your iPad, iPod Touch, Or iPhone
Don't worry about data snoops. It's easy to lock your iOS device. Here's how.
First set up the code to lock your iOS device. Go to Settings >> General. Tap on Passcode Lock.
Tap Turn Passcode On.
Enter in a four-digit numerical code--twice.
And you've got a lock code. The passcode keeps all lurkers away. Just don't forget it!
Keep it private, too.
Now your iPhone is safe from prying eyes.