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Illustration representing QR code payment routing in Turkey

Payment Systems

What are the QR Code Routing System (KYS) Rules?

The purpose of these rules is to set out the operating rules, participation requirements, and pricing principles of the QR Code Routing System (KYS) established and operated by BKM, as well as other procedures related to KYS's operation.

Easy Addressing System (KOLAS) participation diagram

FAST

Which Institutions Can Provide the Easy Address Service?

To offer the Easy Address service, an institution needs approval from the Central Bank of the Republic of Türkiye (CBRT), documented eligibility to participate in FAST or EFT, and completed administrative and technical processes with BKM.

Fintech companies combining finance and technology

Payment Systems

What is Fintech?

Fintech, short for financial technologies, is a term for companies that bring together finance and technology to provide easy and fast financial services, growing rapidly worldwide.

Diagram of PIN Encryption Key (PEK) structure

HSM & Security

What is PEK (Pin Encryption Key)?

PEK is the abbreviation for Pin Encryption Key. The role of PEK is to encrypt PINs. There are two types of PEK: TPK (Terminal Pin Key) and ZWK (Zone Working Key).

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.

European Payments Initiative (EPI) overview graphic

Payment System Institutions

What is EPI (European Payments Initiative)?

The European Payments Initiative (EPI), formerly known as PEPSI, is an ECB-backed payment integration initiative aiming to build a pan-European payment system and interbank network to rival Mastercard and Visa. Its founding members include BBVA, BNP Paribas, CaixaBank, Commerzbank and others.

Diagram illustrating open banking, where customer financial data is shared with fintech companies through APIs

Payment Institutions & E-Money

What Is Open Banking?

Open banking means sharing customers' financial information with a third-party fintech company so that a range of banking and financial services can be offered to them. It works through API integrations. This post covers its status in Turkey and the new BRSA regulation.

Starling Bank vertical credit card design

Credit Card

Vertical Revolution in Credit Cards

The payment card industry is arguably the sector most affected by technology and the quickest to adapt new developments. With mobile devices, payment systems have changed a lot - we now prefer using our credit cards virtually rather than physically.

Zone Working Key PIN encryption between banks

HSM & Security

What Is ZWK (Zone Working Key)?

ZWK stands for Zone Working Key. It encrypts the PIN so that it can travel securely between different financial institutions, such as the acquiring bank and the issuing bank.