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.

(Reuters) -An international standards body has approved creation of a merchant code for gun retailers, a representative said on Friday, following pressure from activists who say it will help track ...

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 ...

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 ...

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 merchant category code — or an MCC — is a four-digit number used by credit card companies to classify businesses for payments, taxation and rewards purposes. MCCs affect the interchange rates and ...