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Open Banking
First, it is useful to briefly recall the concepts of Banking as a Service and Open Banking. Banking as a Service (BaaS) lets interface developers connect directly to service banks' systems via APIs and open banking services to run banking transactions for customers...
Online & Authorization
You press the pay button and the screen says the transaction failed. Behind that failure are checks on your balance and transaction security. This post explains how funds confirmation APIs work, where they apply, and the situation in Turkey's open banking.
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).
Closed-Loop Payments
In the final post of the closed-loop payments series, the common question behind cards, QR payments, and prepaid balances comes into focus: who manages the customer relationship, and whose ecosystem does the customer stay in?
Credit Card
Although debit cards and credit cards look similar in appearance, there are fundamental differences between them, from cash advances to installments and security.
Credit Card
KKB was established, under banking law, to enable the exchange of all kinds of information and documents among at least five banks, and it also shares credit information about customers. The Credit Bureau of Turkey also serves deposit banks, participation banks, financial institutions, and more.
Credit Card
Visa, Mastercard, and TROY logos on a card represent the payment scheme behind it. Learn what these brands actually do and how a new BIN gets certified.
Payment Institutions & E-Money
Digitalization is showing itself first in banking and payment systems. The BRSA has announced it will begin issuing digital (branchless) bank licenses, opening the way for new digital banks in Turkey under an amendment to Banking Law No. 5411.
Laws & Regulations
The CBRT announced that it has launched open banking services in payments, a component of the digital economy roadmap of its liraization strategy, through BKM's Open Banking Gateway (GEÇİT).
Merchant & POS
Loading parameters onto a POS transfers BIN lists, key data, and refund/cancellation authorizations from the management system onto the terminal. Learn how and when it happens.
ATM
Banks must provide the infrastructure for ATM access by visually impaired customers. Among ATMs side by side or less than 50 meters apart, only one needs to comply; all other ATMs must serve visually impaired customers. Details of Article 7 are below.
Merchant & POS
Partial Authorization lets an issuer approve part of a transaction instead of declining it when the balance or limit is insufficient. This post covers how it works in ISO 8583, whether it is mandatory, and why it matters for the business.