A credit card authorization key is a secure code used to process transactions, confirming purchases and preventing fraud between POS systems and banks.

Discover how credit card validation codes work and protect against fraud. Learn about their placement, security role, and examples to secure online transactions.

Bree Fowler writes about cybersecurity and digital privacy. Before joining CNET she reported for The Associated Press and Consumer Reports. A Michigan native, she's a long-suffering Detroit sports fan ...

Robb Sommerfeld used a popular business credit card to help manage finances at National Center for Craftmanship (NCC), a nonprofit where he serves as an executive director — until the bank suddenly ...

Anyone who has lived through several iterations of the “kids these days!” generational wars probably recognizes the rhetoric elders are lobbing at Gen Z for youthful spending choices. The cold brew ...

Credit cards offer rewards and protection, but using them exclusively has downsides. Here's what to know before going all-in on credit.

Whether it’s points, miles, or cashback, it’s nice to get rewarded for shopping. But the lure of rewards programs can encourage people to apply for credit cards and use them to earn free airline ...

Make a list of your credit card debt, from the highest interest rate to the lowest. Decide how much extra you can spare. First, focus on the credit card with the highest interest rate and continue ...

Costco does credit cards very differently than any other retailer. It makes an exclusive deal with one credit card brand, then partners with a bank to offer a signature version of that brand's card.

When Jeff Campbell checked in at the Austin, Texas, airport for a spring break vacation, the last thing on his mind was a credit card chargeback. Instead, he was thinking about the fun he’d have with ...

When you said "I do," little did you know that you might also have agreed to take on your partner's credit card debts. The way these financial obligations are handled legally after nuptials depends on ...