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Illustration representing an installment transaction made with a credit card

Credit Card

What is an Installment Transaction?

An installment transaction splits a payment into a set number of installments reflected on the cardholder's statement, when the card and POS bank are the same. For example, a 1000 TL transaction in 5 installments reflects 200 TL per statement period, starting from the first one.

Illustration of personal data protection under the Turkish Personal Data Protection Law (KVKK)

Merchant & POS

What is the Personal Data Protection Law (KVKK)?

The Personal Data Protection Law was adopted by the Grand National Assembly of Turkey on 24/03/2016 and published in Official Gazette No. 29677 on 07/04/2016. It protects individuals' rights in the processing of personal data and sets the rules that data controllers must follow.

Diagram illustrating card fraud and forgery in card payments

Security

What Is Forgery in Card Payments?

Forgery in card payments means transactions made with card details without the cardholder's knowledge, or purchases with counterfeit or stolen cards. Merchants cannot eliminate fraud and chargeback risk, but they should aim to reduce it to reasonable levels.

Illustration showing how an Application Identifier (AID) is used in a chip card transaction

EMV

What is an Application Identifier (AID)?

The AID tells the terminal which applications are present on a chip during a POS or ATM transaction. What does the AID do? It lets the terminal determine whether it supports an application on the chip. In Tag 9F06, it is 5-16 digits long.

Comparison of CVV security code locations on a standard card and an American Express card

Credit Card

Is the CVV/CVC Code Always 3 Digits?

First, let's briefly explain CVV/CVC. CVV stands for Card Verification Value, a term used for Visa. CVC stands for Card Verification Code, a term used for MasterCard. The CVV/CVC code is used for cardholder verification and to reduce fraud risk.

Illustration of a phone scam call impersonating a bank

Security

We're Calling From the Bank, Your Account Has Been Compromised...

Fraud cases where scammers pose as bank staff or other institution employees to obtain citizens' banking information have increased significantly recently. Interestingly, the new fraud trend closely mirrors the steps of a genuine banking procedure.

Table of merchant sectors where offline transactions are restricted

Merchant & POS

In Which Sectors Can Offline Transactions Not Be Performed?

An offline transaction is one approved by the card and the POS themselves, without going to any system (the card's bank or the POS's bank), when a chip card transaction is made at a POS. For this reason, some sectors considered risky are restricted.

Table of Visa and Mastercard fraud codes and descriptions

Security

What Are the Visa and Mastercard Fraud Codes?

Fraud means obtaining unjust gain by carrying out a transaction at a merchant or ATM using someone else's credit card or debit card, causing a loss to the real cardholder, the merchant, or the bank. So what fraud codes do Visa and Mastercard use?