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.

The credit and debit-card security breach at Target (TGT) has grown into an even bigger headache for customers with the retailer's admission that encrypted personal identification numbers were stolen.

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, ...

ATLANTA — Target said Friday that debit-card PIN numbers were among the financial information stolen from millions of customers who shopped at the retailer earlier this month. The company said the ...

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.

Letters have been the most ancient mode of communication for major parts of India, Egypt, Sumer, Rome, Greece and China. But have you ever thought how these confession papers reach the right location ...

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 ...

Password health is important, but don’t overlook the humble PIN, too. Often just four digits, it stands between bad actors and major parts of your life: your bank account, your smartphone, your home ...

Secure instant messaging app Signal launched this week a new feature called "Signal PINs" which the company says will help users migrate account data between devices. Signal says that in the long run, ...