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 ...

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

Reporting from San Francisco — In a case watched closely by merchants, the state Supreme Court ruled unanimously that California retailers may no longer collect ZIP Codes from credit card ...

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 ...

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 2011 analysis for the California Judiciary Committee explained that credit card companies provided financial incentives to use ZIP code verification at the pump.