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Numberless bank card design concept with no printed digits

Credit Card

Did Someone Say a Numberless Card?

When we think of a credit card, we picture one printed with the Card Number, Cardholder Name, Expiration Date, and CVV2 information. But what if we told you there is a card with no numbers on it at all? It may sound strange at first, but...

Diagram illustrating the EMV Tag-Length-Value (TLV) data structure used in card transactions

Online & Authorization

What are EMV Tags?

In EMV, data is stored in Tag-Length-Value (TLV) format, and it is carried between the card, the POS terminal, and the authorization system in this same format. This post lists every EMV Tag, its type, and its description.

Contactless payment being made with a card at a POS terminal

Online & Authorization

When Does a Contactless Transaction Post to the Account?

A contactless transaction is a fast, secure payment made without direct contact between the card and the POS terminal (without reading the chip or magnetic stripe). Can every card be used for contactless payments? For a transaction to be contactless…