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Diagram of an Onus installment transaction flow between POS and HOST

Payment Systems

What are the key points in an Onus Installment project?

Before describing the Onus Installment process, it is better to first answer: what is an Onus transaction? An Onus transaction is when the acquirer and issuer are the same institution, so the transaction is processed through that institution.

BKM (Interbank Card Center) membership acceptance criteria overview

Laws & Regulations

What Are the BKM Membership Acceptance Criteria?

BKM (Interbank Card Center) membership is available in 3 statuses: bank, institution or HSK. This post explains the eligibility criteria for each status, the 12-month certification requirement and the BKM fee principles.

Exterior of the Takasbank headquarters building

Payment Systems

What is Takasbank?

Takasbank (Istanbul Settlement and Custody Bank) exists to increase the competitiveness of Turkey's markets by providing clearing and custody services, financial services, and other economic activities under the relevant legislation.

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.

Banking Regulation and Supervision Agency (BRSA) building and emblem

Payment Institutions & E-Money

What Is the BRSA?

The BRSA is the Banking Regulation and Supervision Agency, an autonomous agency that protects savers' rights, ensures banks operate soundly and securely, and contributes to the long-term growth and stability of Turkey's economy.

General Data Protection Regulation (GDPR) concept illustration with padlock and EU stars

Payment Systems

What Is the General Data Protection Regulation (GDPR)?

The General Data Protection Regulation (GDPR), (EU) 2016/679, is EU law on data protection and privacy. It gives individuals control over their personal data, requires breach notification within 72 hours, and allows fines of up to 20 million euros or 4% of annual revenue.

Overview of Türkiye's Law No. 6493

Laws & Regulations

What Is Law No. 6493? What Does It Contain?

Law No. 6493, published in Official Gazette No. 28690 on 27 June 2013, regulates the procedures and principles for payment and securities settlement systems, payment services, payment institutions and e-money institutions.