In iOS 9, Apple has added a minor tweak that's aimed at improving the security on your iOS device. Instead of defaulting to let users select a four-digit passcode to unlock a device, Apple will now ask users for a six-digit code.
The extra two numbers are meant to make it even harder for a would be hacker to force his or her way into your iOS device. When you first update to iOS 9, Apple doesn't force you to select a new six-digit security code, however.
If you want to increase the security on your device, or perhaps change back to a four-digit code, this is what you'll need to do.
- Launch the Settings app.
- Find and select Touch ID & Passcode.
- Enter your current PIN code if/when prompted.
- Find and select Change Passcode.
- Enter your current code again.
- Enter a new, six-digit code (twice).
Notice there's a link titled Passcode Options just above the number pad when you're entering the passcode. Tapping on this will allow you to create an alphanumeric code, custom numeric code or toggle between a four- and six-digit passcode.
You're done. Press the home button to exit the Settings app. The next time you're prompted for a passcode, remember to enter all six numbers.
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