Your billing zip code, or credit card postal code, is the five-digit number on the bottom right, which in this sample is 90210. This would be the zip code associated with your billing address. It ...

In one high-profile case, the home furnishings and cookware chain Williams-Sonoma matched names from its credit card sales and ZIP codes with a database to obtain addresses and other information ...

Your card number is carefully structured. The very first digit is what’s known as the major industry identifier. A 4 means ...

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

Closely guard your credit card security code unless you are certain that a legitimate business needs it – and only if you initiate a transaction.

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