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 ...

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

Williams-Sonoma subsequently ran the plaintiff’s name, credit card number, and ZIP code information through computer software that conducts reverse look-up searches and traced the plaintiff’s ...

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