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.

Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. Update, May 20, 2025: This story, originally published May 19, ...

If you have an Apple or an Android phone—and you probably do—you have the option of locking your phone using a PIN code. With most of these phones, you can choose a four-digit PIN or a six-digit PIN.

Guess how long it would take a computer to brute-force an 8-number password. The answer: instantly. That's according to Hive Systems' Password Table, which shows how shockingly quick passwords of ...

ATM cards and their PINs are becoming the easiest targets in the growing number of cybercrimes. Hackers first try PINs that are easy to guess. Therefore, choosing a 4-digit ATM PIN should be done ...

Personal identification numbers (PINs) are vital for protecting our online banking accounts, devices, and sensitive information. And while it may seem like it is simple to make a four-digit PIN, you ...

Researchers find that a smart bad guy has a one-in-10 chance of guessing the PIN that guards your bank account. I’ve always thought that losing one’s ATM card was an inconvenience, but not a likely ...

Many people have difficulty selecting and remembering a passcode, especially when it involves four-digit pins. But if you plan to default to something as easy as 1-2-3, you might want to rethink ...

Are you using a four-digit PIN code on your Android or iPhone?A newly published Samsung alert suggests you might want to change that.

Ride-hailing company Uber launched a new safety feature that uses randomized PIN numbers on Tuesday to help customers make sure they are getting into the right cars. Once a user a books a ride, they ...