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Merchant & POS
Digitalization has brought major change to payment systems, just as it has to every area of our lives. Its biggest impact has been turning the financial world into something virtual, spanning IoT, mobile payments, blockchain and biometrics.
Credit Card
A single BIN cannot be used to issue both a credit card and a debit card. If a bank offers both products, it has at least two different BINs, allocated and announced separately by card type.
Merchant & POS
Virtual or electronic authorization devices connected to a bank, used by merchants to accept card payments. The term comes from the English phrase Point of Sale. Covers POS types by communication method, their advantages, who can use one, and the transactions a POS can perform.
Merchant & POS
The BRSA announced it would allow 4 credit card installments for crafted gold jewelry, but not for coins or bullion. Since a jeweler sells both, how will the rule actually be enforced?
Credit Card
A look at the Union Bank RuPay combo card, an unusual design with two chips, two card numbers, two CVV2 values, two magnetic stripes, and two payment schemes combining credit and debit card functions.
Merchant & POS
Yes, it is mandatory. This requirement was introduced to prevent fraud. To fulfill their obligations regarding identification of foreign customers, banks must make one of several arrangements on receipts, such as bilingual descriptions or an explicit foreign card warning.
Security
The number of companies offering cloud computing and storage has grown sharply in recent years. AWS, founded in 2006, is the world's largest cloud computing and storage provider, ahead of Google Cloud, Microsoft Azure and IBM.
ISO 8583
We covered the ISO 8583 basics in an earlier article. This post explains the ISO 8583 message structure in detail: every ISO 8583 message consists of three main parts - the MTI (Message Type Indicator), the Bitmap, and the Data Elements.
Closed-Loop Payments
Is Starbucks really selling coffee, or building an ecosystem? Prepaid balances, a loyalty program and customer data turn a coffee chain's payments into a closed-loop economy, a very different model from Istanbulkart.
EMV
The Visa EAS Server (Extended Access Service) is a server used in Visa’s authentication infrastructure. It was developed to run the cardholder authentication process securely between banks and the Visa network, particularly within Visa Secure (3-D Secure 2.x).
ISO 8583
F64 — Message Authentication Code (MAC): verifies the origin and text of the message between the sender and the receiver.
HCE
Token types vary depending on the verification method used in a transaction. In offline transactions, general checks are performed by the mobile app and card reader without any verification in the card system. In online transactions, token verification is sent to and verified by the issuer.