ALBUQUERQUE, N.M. (WHAT THE TECH?) — You probably have at least one simple four-digit code memorized. We use them for a lot of important things like debit cards and phones. But some pin-codes are more ...

Update, May 26, 2025: This story, originally published May 24, has been updated with a brief history of PIN codes, information regarding the most secure codes you can use and why 8068 really isn’t the ...

Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. Keeping your iPhone or Android device secure is a no-brainer.