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ISO 8583
F23 - CARD SEQUENCE NUMBER: Information used to distinguish cards sharing the same card number. For example, the Card Sequence Number is incremented by 1 when a card is renewed. In an authorization transaction, if the F22 value is '05x'...
Merchant & POS
Mobile phones are entering our lives more every day. One study found people forget their wallets more often than their phones. This post explains how to buy fuel with TOTAL Mobile Payment and BKM Express without getting out of the car.
Merchant & POS
A Card Recovery Bulletin is a list of problem cards (lost, stolen, expired, over-limit, counterfeit or otherwise flagged) published by card schemes such as Visa or MasterCard. It shows whether a card number is listed on the date of purchase.
ISO 8583
DE 52 — Personal Identification Number (PIN) Data: the field that holds the PIN data. PIN verification is carried out based on this field.
Merchant & POS
UnionPay International (UPI) is a China UnionPay subsidiary founded in November 2012. Together with more than 1,000 institutions worldwide, UPI provides international card acceptance in 160 countries and card issuance in more than 40 countries and regions.
Online & Authorization
HCE lets a mobile device's operating system emulate the cards we use daily (credit, debit, gift cards, etc.) to make contactless payments via NFC. In other words, our phones behave like the cards we use for payments.
HCE
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.
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).
Merchant & POS
Advances in payment systems make shopping safer and easier for customers. For e-commerce sites and brands, offering reliable, practical and fast payment options is a serious advantage. An online payment link is one innovative way to accept payments without a POS device.
Contactless
As end users, we have come to love contactless payments, which are becoming a bigger part of daily life. So what features let contactless cards make payments without touching the POS terminal? There are two classes: MSD cards and Contactless EMV cards.
Merchant & POS
Isbank, a leading player in accepting payments from abroad in Turkey, has started accepting Discover and Diners Club cards via an agreement with Discover Financial Services, making it the bank accepting the most card brands in the country.
EMV
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.