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BKM API gateway integration deadline

Payment Systems

Target Date for BKM API Gateway Integration Amended

An amendment was made to the communiqué on the information systems of payment and e-money institutions and data sharing services, setting 31/3/2025 as the deadline for other payment service providers' obligations.

Conceptual illustration of AI agents engaging in online commerce and payments

Agentic Commerce

Agentic Commerce Series – Part 1

The next customer on the internet may not be human. If AI agents become part of purchasing decisions, the rules of e-commerce, marketing, and payment systems could change.

Diagram illustrating ATM cash overage and cash shortage reconciliation

ATM

What are Cash Overage and Cash Shortage?

Cash overage and cash shortage are terms used in any system that operates with a cash account. A cash overage means more money is physically present than the ledger indicates; a cash shortage means less. In payment systems, these terms are most often used for ATMs.

BKM Central POS Database (MPV) illustration

Merchant & POS

What Is MPV (Central POS Database)?

MPV stands for Merkezi POS Veritabanı (Central POS Database), BKM's shared database of all POS terminals operated by its card-accepting members, used for support, statistics, fraud analysis and the Common POS Management System.

POS terminal software version update process diagram

Merchant & POS

How is a software version uploaded to a POS terminal?

To upload a version to a POS, the software on the POS and the authorization system on the bank side must support it. Version upload to a POS can be done manually on the device itself, or via a remote upload request.

Screenshot of an Address Verification Service (AVS) response code table

Merchant & POS

What is Address Verification Service (AVS)?

Address Verification Service (AVS) is a fraud prevention system that helps limit fraud and chargebacks when used effectively. It verifies that the address a customer enters matches the cardholder's address on file with the issuer.

Diagram illustrating the PSD (Payment Services Directive) regulatory framework

Merchant & POS

What is PSD (Payment Services Directive)?

PSD stands for Payment Services Directive, known as the Payment Services Law. It took effect in EU countries in 2009, and in 2015 new revisions were announced as PSD1, aiming to build an efficient, fast, secure, and competitive payment market.

Illustration representing a vishing voice phishing phone scam

Security

What Is Vishing (Voice Phishing)?

Vishing is a method of deceiving the victim using voice. It replaces the "p" in phishing with the first letter of "voice," meaning "voice deception." It is reinforced by technology in social engineering cases to extract information more easily.