EAU CLAIRE — The city of Eau Claire identified and stopped an outside party last week from using the city’s online payment portal to test stolen credit card numbers. “What happened was that scammers ...

The 15- or 16-digit credit card number on the front or back of your card helps authenticate every purchase you make, whether you’re buying something in person or online. Not only that, but the way ...

The numbers on a credit card help identify the credit card network, the company that issued the card and the cardholder.

Ever find your palms sweating as you enter your payment info into a merchant site you’ve never used before? It’s a natural response; few financial details are more important than your payment methods ...