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

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

Credit card fraud isn’t always a one-time occurrence — sometimes, an instance of fraud is part of a repeated fraud pattern. As credit card fraud continues to rise, cardholders are an important line of ...

If deleting and reporting scam texts and phone calls has become part of your daily routine, there's another simple way to protect yourself from fraud -- and it may be more effective. Placing a fraud ...

Whenever you can, switch to contactless payment methods to add an extra layer of security. Because your card stays with you, ...

Using a biometric scanner on your credit card makes your transactions more secure, but it might not solve any real issues. Evan Zimmer has been writing about finance for years. After graduating with a ...

It's common to hear stories about various financial scams and assume that they would never happen to you. But unfortunately, there's a fair chance that at some point you could fall victim to a scam, ...