ISO 8583
ISO 8583 Field Descriptions (F95)
DE 95, Replacement Amounts, shows the transaction amount information in full or partial reversals. Here are its subfields and how it relates to F4.
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ATM
Transactions You Can Make at an ATM
Moving branch transactions to channels such as ATMs, internet banking and mobile banking lowers banking costs, so almost every transaction can now be done through them. Here is what ATMs offer.
HCE
What components make up an HCE Token (Transaction Token)?
The token used in HCE transactions contains more than just a new number derived from the card number. It also includes single-use keys, an expiration date, RSA keys and certificates, transaction limits, and an Application Transaction Counter (ATC).
Payment Systems
Dynamic CVM Limit Management Approach: A New Era in Card Security
One of the most notable recent developments in card payments is that contactless limits are no longer fixed and can be managed dynamically per customer. Mastercard and Visa are taking different but complementary approaches, and ISO 8583 may need to evolve with them.
EMV
What is an Application Identifier (AID)?
The AID tells the terminal which applications are present on a chip during a POS or ATM transaction. What does the AID do? It lets the terminal determine whether it supports an application on the chip. In Tag 9F06, it is 5-16 digits long.
Cryptocurrency
What Is Bitcoin?
Bitcoin is a digital currency launched experimentally in 2009 by Satoshi Nakamoto. It has no ties to any central bank, can be bought and sold with national currencies and can be transferred without any intermediary.
Credit Card
Apple Is Rewriting the Card World...
Most of us remember the impact the first iPhone, introduced by Steve Jobs on January 9, 2007 and revolutionary for its time, had on our lives. In a similar way, a product that will completely change how we use and view credit cards...
Credit Card
What should you know before buying a prepaid card?
A prepaid card is a customized chip or chipless card that is not linked to a bank account and has no credit limit like a credit card. You can only spend up to the amount loaded onto the card.
Merchant & POS
What Happens Behind the Scenes When a QR Code Is Scanned? | Closed-Loop Payments #2
In the first post I explained what closed-loop payment systems are and how they differ from open-loop ones. Many of the replies I received boiled down to one question: how do these systems actually work behind the scenes once a QR code is scanned?
Payment Institutions & E-Money
Amendments Made to the Communiqué on Information Systems of Payment and Electronic Money Institutions and Data Sharing Services of Payment Service Providers
On 7 October 2023, the CBRT amended the Communiqué on Information Systems of Payment and E-Money Institutions and Data Sharing Services of Payment Service Providers, first published on 1 December 2021. Links to the new text, a comparison table and a detailed summary of changes follow.
Debit Card
What Is a Prepaid Debit Card?
A prepaid card is a customized card that is not linked to a bank account and has no credit limit like a credit card - you can spend only up to the amount loaded onto it. Prepaid cards function just like a bank card or credit card.
Debit Card
What Are the Cards Issued by E-Money Institutions and Their Transaction Fees?
The use of prepaid cards, and the number of prepaid cards issued by e-money institutions, has risen sharply. This post looks at why, how to choose a card, and which fees prepaid cards charge.