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.

A few weeks ago, Tarah Wheeler, the senior director of Data trust, Threat, and Vulnerability Management at Splunk, shared a list of the most common PIN codes people use to protect their smartphones ...