Skip to content

Search

"transaction fraud"

115 articles found

Animated illustration of a credit card representing dynamic security code technology

Credit Card

What is a Dynamic Card Security Code (CSC)?

It is a CVV2/CVC2 code that changes every few minutes instead of the static code printed on the back of a credit card, aimed at reducing fraud risk in CNP (Card Not Present) transactions.

Illustration for the question about SMS notifications in mail order transactions

From My Readers

Is there an SMS notification structure for Mail Order transactions?

I occasionally receive questions from my readers, and I answer them by email or through other channels. Since others may have similar questions, I will publish these questions on my site along with the answers. Hello Mr. Arif, I read your articles from time to time and...

Payment card with an EMV chip

Clearing

What is Chip Condition Code?

Chip Condition Code is a code carried in the F60 (Additional Data) DE14 field during clearing that shows the chip read status. The possible values and their descriptions are listed below.

Illustration representing the advantages and disadvantages of credit cards

Credit Card

What Are the Advantages and Disadvantages of a Credit Card?

Credit cards can be a convenient way to manage income and expenses, but for those who don't know how to use them, they can become an expensive and risky product. Here are the key pros and cons to weigh before applying for one.

Diagram illustrating the types of chargeback disputes in card payments

Chargeback

What are the chargeback dispute types?

A chargeback is a dispute raised against a card transaction when the cardholder did not make it or does not recall it. The dispute types vary depending on the situation; let's look at them.

Illustration representing an AI agent making a payment

Agentic Commerce

Agentic Commerce Series – Part 4

Are We Ready to Give an AI Agent the Authority to Make Payments? Having long looked at complaint and dispute processes in payment systems, I think granting an agent payment authority is far different from research or product selection.

TR QR Code merchant registry system diagram

Merchant & POS

What Is the Merchant Registry System?

The Merchant Registry System is the system at BKM that holds information on merchants accepting electronic payments, set up to simplify TR QR Code payment processes and prevent fraud and misuse in payments.

Illustration representing the Card Protection Plan (CPP)

Security

What is CPP (Card Protection Plan)?

Credit cards are one of the most important payment instruments in daily life. As technology advances and mobile payments and ATMs handle nearly all transactions, credit card fraud is also diversifying and increasing.

OTP SMS service icon illustrating one-time password delivery

Security

What Is OTP? What Is Its Role in End-to-End Security?

With Chip&Pin technology, card PINs and chip-based transactions became widespread. As online shopping grew, strengthening the security of these transactions became a necessity, and OTP began providing that transaction security.

Announcement graphic showing the FAST money transfer limit raised to TRY 20,000

Payment Systems

FAST money transfer limit raised to TRY 20,000

The limit for FAST transactions, which enable interbank 24/7 instant money transfers, was raised to TRY 20,000 as of 14.02.2023. This post covers the change and its impact; the figure is historical and the limit has since been raised again.

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.