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Diagram illustrating ISO 8583 Field 61 Point of Service (POS) data structure

ISO 8583

ISO 8583 Field Descriptions (F61)

F61 - POINT OF SERVICE (POS) DATA: This field provides information about the specific status of the POS at the time of the transaction. Position Usage Attribute 1 POS Terminal Attendance Indicator 0 = Attended terminal (Valid for MasterCard debit card and Maestro transactions only).

Person entering card details on an online payment page

E-commerce

What is Online Payment?

Making payments over the internet using a card is called online payment. Learn what online payment systems are used for and what happens behind an online transaction, from the payment gateway to the issuing bank.

Diagram illustrating the tokenization and detokenization process for card payments

HCE

What Are Tokenization and Detokenization?

Tokenization generates secure data from a credit card number, using specific algorithms, for use during authorization. In CNP transactions, it removes the risk of storing or compromising the original card number.

Credit card and smartphone illustrating online card payments without physically presenting the card

Credit Card

Do I have to use my physical card when shopping?

In the early years of credit cards, using the card physically was mandatory. With the internet and new technologies, we can now pay with only the card details, 3D Secure and contactless NFC payments, even without the card in hand.

Cover of the EMVCo Software-based Mobile Payment Security Requirements document

Security

What is Software-based Mobile Payment Security Requirements?

“Software-based Mobile Payment Security Requirements” is a document published by EMVCo in April 2020 to guide payment application developers in building secure payment applications. This post summarizes its purpose and who it concerns.

Smart Payment Association (SPA) logo

Payment Systems

What is SPA (Smart Payment Association)?

The Smart Payment Association (SPA) is the trade association of the smart payments industry. It provides leadership and expert guidance to help members and customers realize smart, secure and personalized payment systems and services, now and in the future.

Photo illustrating the use of a prepaid card

Credit Card

Is a Prepaid Card a Credit Card or a Debit Card?

A prepaid card may look like a debit card since it has no predetermined limit and purchases are limited to the amount loaded by the cardholder, but in terms of use and operating logic it differs significantly from both credit and debit cards.

Illustration of ISO 8583 message format

ISO 8583

ISO 8583 Field Descriptions (F35)

F35 TRACK-2 DATA: The values printed to the card's Track 2 data in ISO 7813 format, including field separators and start/end sentinels, but excluding LRC (Longitudinal Redundancy Check) characters. It is 37 characters long.

Diagram illustrating the properties and lifecycle of a tokenized card number as it moves through the payment network

HCE

What Are the Characteristics of a Tokenized Card Number?

A tokenized card number replaces a physical card number so transactions can be carried out securely. It is generated by the TSP (Token Service Provider), used by the cardholder or merchant, and travels across the payment systems network.

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…