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Payment Systems
Official Gazette No. 32332 dated 07.10.2023 published the amending Regulation and Communiqué covering digital wallets, e-money, share transfers, cloud outsourcing, remote identity verification and card system choice.
ISO 8583
F14 - DATE, EXPIRATION DATE: the expiration date printed on the card by the issuing bank, a 4-digit numeric value in YYMM format. See how it's checked and why the YYMM order matters.
Payment Systems
In payment systems, an “appeal” is the process of objecting to the outcome of a transaction dispute. It is usually discussed alongside chargebacks, but it plays a critical role in interbank dispute resolution, when a party asks the card scheme to re-evaluate a concluded decision.
ISO 8583
F2 is the Card Number field in ISO 8583, identifying the cardholder and issuing bank. This post covers its structure, the 8-digit BIN update, field format, first-digit scheme identification, and PCI DSS security requirements.
HCE
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).
Online & Authorization
A reference guide to authorization response codes seen on POS and ATM transactions, with plain-language explanations of what each code means and what to do about it.
Merchant & POS
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?
Entrepreneurship
Neuromarketing is a technique for developing a marketing strategy from the results of closely examining purchasing perception in the human brain, aiming to understand consumer behavior and the psychology behind it.