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

Credit card security codes are three-digit codes on the back of your card (four-digits on the front if you have an American Express card) used to verify that have the physical card. You typically ...

A credit card CVV, or card verification value, is a three- or four-digit security code that appears on your credit card and is used to prevent fraud. Many or all of the products on this page are from ...

For some credit card purchases in Canada, a postal code is required as a security measure. If using a credit card in the U.S., you may need to use a ZIP code instead. Many or all of the products on ...

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Code offers "significant" new tool for identifying shooters, one advocate said. A gunman in Aurora, Colorado, who killed 12 people in a mass shooting at a movie theater, in 2012, legally acquired ...

A credit card categorization code that could improve the tracking of gun sales was approved by an international panel that sets standards for the payments industry, according to New York City ...

Patrick T. Fallon / AFP via Getty Images Gun control advocates are cheering a new change in the credit card industry that they say could help prevent gun violence. This week, credit card companies ...