Best Buy, Wal-Mart and Radio Shack, fierce competitors in the sale of electronic merchandise, each deploys payment terminals that prompt customers to tap in a PIN when paying with a debit card. Their ...

Could this be the year of the PIN? Shoppers have been shifting to personal identification number-based debit cards over the last five years, opting to use them for everyday purchases. But consumers ...

This is an excerpt from Dollar Scholar, the Money newsletter where news editor Julia Glum teaches you modern money lessons you NEED to know, one week at a time. Don ...