Have you ever felt uneasy when someone on the phone asked for your credit card security code? Your instincts were on target. Just as most people keep their Social Security and phone numbers close ...

A credit card security code is a three- or four-digit number that’s found only on a physical credit card.

A credit card security code provides protection against fraud in online and over-the-phone transactions.

Credit card security codes shield your account details against information leakage. Find out more about how they work with Forbes Advisor.

An ever-changing security code could prevent credit card fraud and thefts.

Key Takeaways The location of your credit card's CVV, or security code, varies based on what credit card you have. The three- or four-digit CVV number makes fraud more difficult, since it acts as ...

Credit Card Security What Is a Validation Code? A validation code—also known as a CVV, CV2, or CVV2 code—is a series of three or four numbers located on the front or back of a credit card.