Search
76 articles found
ISO 8583
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).
Credit Card
CPV stands for Card Personalization Validation. It is Mastercard's term for the set of recommendations and instructions defined for the card personalization process. The equivalent for Visa is called GPR (Global Personalization Requirements).
Chargeback
Chargeback reason codes vary by card scheme. The Amex chargeback reason codes and their descriptions are listed below: American Express Chargeback Reason Codes A01 The charge you submitted did not receive a valid authorization approval code for the amount...
Credit Card
The Luhn algorithm was developed by Hans Peter Luhn and IBM in 1954. It is also known as the Luhn Check or Mod Check. It is used in two ways: preparing a given number according to the Luhn algorithm, and validating a given number using the Luhn algorithm.
Credit Card
When I think back to the Akbil I used when I first arrived in Istanbul, I think it's fair to say that Istanbulkart has undergone a very significant transformation. Users can now track activity, top up and view balances right from their phones.
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.
Credit Card
About 90% of payment schemes print card numbers with 16 digits. But 90% producing 16-digit cards should not turn into a rule that card numbers are always 16 digits. Web payment forms must also account for the remaining 10%.
Credit Card
CVV (CVC) and CVV2 (CVC2) are two terms that cardholders often confuse. Both are used for verification in card transactions, but there are notable differences between them, such as where each is printed and which transactions use it.
Credit Card
Credit card fraud is generally committed using the card itself, using card details without the card, via excess or duplicate withdrawals, or by seizing identity information. ATM card trapping is common, since ATMs hold the card during the transaction.
Merchant & POS
Terminal Verification Results (TVR): a sequence of bits produced when a terminal reads an EMV card, based on logical checks such as an expired card. This data object is used to decide whether a payment transaction should be accepted online, declined, or allowed to proceed.
Payment Systems
Let's talk about payment systems, which we have heard more about since the internet entered our lives, and the basic structures behind them. The first credit card in the world was used in America in the 1920s.
HCE
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.