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Security
A CP transaction refers to a card transaction in which the card and cardholder are physically present at the location. Card Present transactions occur when the card's magnetic stripe or chip data is read by a POS terminal or ATM, or via contactless.
EMV
The Card Block command is used after card issuance to deactivate all applications within the ICC, including applications that could be selected indirectly. The components of the command are explained below.
From My Readers
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...
Credit Card
iCVV stands for Integrated Circuit Card Verification Value. To prevent fraud, it is a CVV value generated similarly to the card's track data and stored on the card's chip. Visa uses the term iCVV; MasterCard and American Express use their own equivalents.
Security
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.
Credit Card
The PIN Try Counter is a value stored on the card's chip showing the number of remaining offline PIN attempts. Each incorrect offline PIN entry decreases it by 1, and it resets when the correct PIN is entered.
Credit Card
Current information: this post describes the limit that applied at the time of publication. According to a BRSA letter to banks, the PIN-free contactless transaction limit, raised to 750 TL in July 2022, will become 1500 TL from 1 July 2024.
Merchant & POS
Chip&Pin, introduced in Turkey on March 31, 2006, is a payment method that greatly reduces the risks of card copying and loss or theft fraud. The chip on the card reduces copying risk, while the 4-digit PIN prevents unauthorized use of a lost card.
Merchant & POS
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.
EMV
An EMV Issuer Script is a system that lets the issuer (the institution that issues the card) update and change the parameters and values on the card chip while it remains in use, reducing fraud over the card's lifetime.
Merchant & POS
In e-commerce transactions, the system developed to increase transaction security for payments made with credit and debit cards is called 3D Secure. When paying with 3D Secure, a special payment screen provided by the banks appears on the user's screen.
Merchant & POS
Yes, it is mandatory. This requirement was introduced to prevent fraud. To fulfill their obligations regarding identification of foreign customers, banks must make one of several arrangements on receipts, such as bilingual descriptions or an explicit foreign card warning.