Use a more secure alphanumeric passcode
While iOS these days prompts users to use a six-digit passcode instead of the standard four-digit passcode (here's how to turn a six-digit passcode back to a 4-digit passcode), there is a more sophisticated way to make your iOS device more secure: using an alphanumeric passcode. This means that you can use both letters and numbers in your password as you would when logging on to a website, giving you an almost unlimited number of possible passwords, as opposed to ts.It's fairly easy to do, too. Just head to the Settings app > Touch ID and Passcode > Change Passcode and when prompted to enter a new passcode, tap 'Passcode Options'. This offers you advanced options like opting for the shorter four-digit passcode, or, in this case, a custom alphanumeric code - simply tap that and enter your new password.
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