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"international payments"

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Diagram illustrating how a recycling ATM reuses deposited banknotes for withdrawals

ATM

What Is a Recycling ATM?

The word literally means recycled or circulating. In payment systems, it refers to physically dispensing money deposited at ATMs to customers who want to withdraw cash, adding deposits straight into the withdrawal pool.

Illustration representing communication protocols used in POS payment systems

Merchant & POS

What Are POS Sub-Protocols and Their Use Cases in Turkey?

In payment systems, every exchange between POS devices and bank or payment institution systems runs on a specific messaging standard, generally based on ISO 8583. However, each country, bank, or switch network defines its own version of this standard.

Foreign payment institutions operating in Türkiye

Payment Systems

Can Foreign Payment Institutions Operate in Türkiye?

All payment and electronic money institutions operating in Türkiye fall under the relevant regulation. A license from a foreign authority is not enough; a foreign institution must obtain a license from the Central Bank.

Illustration representing electronic payment systems

Payment Systems

What are 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.

Document cover of the BRSA circular on the report format under Article 8 of the payment services regulation

Payment Institutions & E-Money

What Is the Circular on the Report Format under Article 8 of the Regulation on Payment Services and E-Money Issuance and Payment Institutions and E-Money Institutions? How Can It Be Accessed?

Under Law No. 6493, payment institutions and e-money institutions may operate only with BRSA permission. This post explains the BRSA circular on the format of the independent audit report required with operating permit applications under Article 8 of the Regulation, and where to find it.

Apple Card and Apple Pay announcement graphic from Apple's Special Event

Credit Card

Apple Is Rewriting the Card World...

Most of us remember the impact the first iPhone, introduced by Steve Jobs on January 9, 2007 and revolutionary for its time, had on our lives. In a similar way, a product that will completely change how we use and view credit cards...

Diagram of an external quarterly network vulnerability scan for PCI DSS compliance

Security

What Is a Quarterly Network Scan?

An external network scan run every 3 months by an Approved Scanning Vendor authorized by card schemes such as MasterCard and Visa, required for PCI DSS compliance. It checks whether merchant systems are protected against external threats.

Diagram illustrating the EMV Tag-Length-Value (TLV) data structure used in card transactions

Online & Authorization

What are EMV Tags?

In EMV, data is stored in Tag-Length-Value (TLV) format, and it is carried between the card, the POS terminal, and the authorization system in this same format. This post lists every EMV Tag, its type, and its description.