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Author

Arif Ünal

Payment systems expert and technology executive

Arif Ünal is a technology executive with more than 20 years of experience in banking, fintech and payment systems. He writes about card payments (issuing and acquiring), POS, ATM, e-money, FAST and Turkish payments regulation (BRSA and CBRT). He has held senior roles at Finagotech and managed payment systems and digital banking teams at Emlak Katılım, Vakıf Katılım and Türkiye Finans. He holds a B.Sc. in Industrial Engineering from Istanbul University and an M.Sc. in Management Information Systems from Marmara University.

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Payment Systems

WhatsApp Payments Now Possible Without a Credit Card

WhatsApp, one of the world's leading messaging apps, is rolling out a long-awaited new feature. After the update, users in Brazil will be able to shop and pay from within the app. Meta announced that users can now pay small businesses directly in WhatsApp.

Illustration representing the products and services KKB offers directly to its member institutions

Credit Card

What Products and Services Does KKB Offer Directly to Members?

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.

FAST instant payment limit raised to 50,000 TL

FAST

FAST Limit Raised to 50,000 TL

The upper limit for FAST transactions, which enable fast money transfers between banks, was raised to 50,000 TL per transaction as of 21 December 2023.

Contactless credit card PIN requirement illustration

Credit Card

New Rule for Contactless Payments With Credit Cards

The BRSA has issued a new decision on contactless cards, instructing banks to require a PIN on the first contactless transaction to prevent cards from being used without the customer's knowledge.

TR QR Code supported payment devices

Payment Systems

Which Devices Can I Pay From With the TR QR Code?

According to BKM's TR QR Code Technical Principles and Rules Guide for card payments, QR code payment structures apply to EFTPOS, shared EFTPOS, ÖKC, ATMs, payment provider apps, static QR codes and virtual POS.

Diagram of the TR QR Code payment flow between cardholder, issuer, BKM and acquirer

Payment Systems

Why Am I Getting an Error When I Try to Pay with a TR QR Code?

In payment or cash withdrawal transactions, the TR QR Code is generated by the POS or ATM. The card issuing bank must build its systems to read and act on this code. Errors usually stem from mishandling the long and short QR code flows, which are explained here.

NFC near field communication ISO/IEC 18092 illustration

Payment Systems

What Is ISO/IEC 18092/ECMA-340?

NFC is a data transfer technology developed by Sony and Philips in late 2002 and adopted as an ISO/IEC standard in 2003. ISO/IEC 18092/ECMA-340 (NFCIP-1) is one of the two globally accepted NFC standards.

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