What's a verification code, and why are they so important? Six-digit verification codes are a form of two-factor authentication, a process that helps keep your important online accounts secure. For ...

New estimates from a security researcher suggest GrayKey, a digital forensics tool in active use by U.S. law enforcement agencies, is capable of cracking Apple's standard six-digit iPhone passcode in ...

Still using a four-digit passcode? You can beef up your iPhone and iPad security by setting a passcode with six digits or more and even use alphanumeric characters. Here's how. Passcodes used to be ...

While setting up a lock screen PIN on your Android or iPhone, there's always the fear that you might forget it one day. That's especially true if you usually rely on quicker methods without a password ...