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Consumer Protection Law No. 6502 illustration

Laws & Regulations

What Is Consumer Protection Law No. 6502?

Law No. 6502 on Consumer Protection aims to protect consumers' health, safety and economic interests, compensate their losses and inform them. It covers all consumer transactions and practices aimed at consumers.

Illustration representing legal and administrative collection processes for unpaid credit card debt

Credit Card

What Are Legal Collection and Administrative Collection?

For people who have trouble paying credit card debt, who do not pay, or who pay late, the concepts of legal collection and administrative collection are not unfamiliar. So, what are legal collection and administrative collection? After a statement is issued on the card,…

Diagram illustrating a man-in-the-middle attack intercepting communication between a client and a server

Fraud

What is a Man-in-the-Middle Attack (MITM)?

A man-in-the-middle attack is a method in which an attacker inserts themselves between the server and client to intercept users' information, steal passwords, and gain access to accounts on a local network. This fraud mostly occurs over public internet connections.

Diagram comparing the 3D, 3D Pay, and 3D Pay Hosting payment models

Payment Systems

What are the 3D Secure Payment Models?

In card payment transactions made via a physical POS device, entering the card's PIN keeps the transaction secure, while in virtual POS transactions, security is provided through the 3D Secure flow. Are 3D Secure payment methods standardized? There are 3 different 3D Secure models.

Photo illustrating a point-of-sale multiple installment sale transaction

Merchant & POS

What is a Multiple Installment Sale?

This can occur at companies selling products from different sectors. For example, you enter a shopping mall and buy a refrigerator for 3000 TL, a dishwasher for 2000 TL, and an iron for 1000 TL, each under a different installment campaign.

Diagram illustrating TCR (Transaction Record Component) packets used in payment clearing and settlement files

Payment Systems

What Is TCR (Transaction Record Component)?

TCR stands for Transaction Record Component, the packets that carry transaction information in a clearing system. Transaction types in a clearing file are distinguished by transaction code and usage code values, and this data is sent inside TCR packets.