Add Yahoo as a preferred source to see more of our stories on Google. Merchant category codes, sometimes called MCC codes or merchant codes, classify merchants based on the products or services sold.

Now that the International Organization for Standardization has approved a new code to identify purchases at stores that sell guns and ammunition, many groups are speaking up about threats to privacy ...

US credit card giants said they will implement a new merchant category code for the nation's gun retailers, which gun control activists say will help flag potential mass shooters and gun traffickers.

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 ...

Did you know that when a credit card company processes a payment it uses different codes to signify different kinds of retailers? There’s a code for pet supply stores. Another one for florists. For ...

A new code identifying credit card sales of guns and ammunition has been approved by the International Standards Organization, creating a potential path for card networks to help law enforcement ...

Merchant category codes, sometimes called MCC codes or merchant codes, classify merchants based on the products or services sold. Credit card issuers use these codes to determine how to categorize ...