Learn in the textbookAdvanced Authentication Methods and Payment Authentication
DefinitionEMV 3-D Secure (EMV 3-Dセキュア) is an international identity check for online credit card payments in which the card issuer confirms that the person using the card really is the cardholder.
ExplanationA stolen card number and expiry date can be typed in by anyone, so on their own they cannot stop someone posing as the cardholder. The issuer therefore checks, at the moment of payment, whether it is really the cardholder, at the request of the merchant accepting the card. In Japan, online merchants are now required to adopt this scheme.
AnalogyIt is like a shop that, instead of checking a customer's identity itself, phones the bank that issued the customer's card to ask whether it is really them before handing over the goods.
Memory hookEMV comes from the initials of Europay, Mastercard and Visa, and lives on in the name of EMVCo, the body that manages the standard. The 3-D stands for three domains: the merchant side, the issuer side, and the part that connects them.