Having an unlocked iPhone–without so much as a four-digit barrier between you and some subway snatcher–is asking for trouble. Four-digit passcodes or PINs were the only way to secure the earliest ...

Your face makes for a very good security check, but your passcode remains a weak spot. Here's how to change it to keep your iPhone data safe by changing your lock screen passcode. People tend to make ...

The iPhone offers strong end-to-end encryption for all your data, and that's a great feature to have on the most important computer in your life. But that encryption is only as good as the PIN or ...