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Debit Card
A contactless transaction is a fast, secure payment made between a chip card and a POS device without direct contact, without the card's chip or magnetic data being read through the card reader. Can this be done with a debit card (ATM card)?
Fraud
According to the Banks Association of Turkey, a fictitious transaction is a collusive transaction made by misusing POS devices, debit cards, or credit cards. Banks that detect such transactions through merchants report them to the Banks Association of Turkey.
Credit Card
Digitalization is reshaping payment systems. Credit cards are moving from physical plastic to virtual cards, e-wallets and mobile payments. Will physical card use disappear completely? Here is a look at the trends, Generation Z and the remaining gaps.
EMV
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.
HSM & Security
TPK stands for Terminal PIN Key. It is a data encryption key used to encrypt PINs for transmission between a terminal and the terminal's bank (acquirer) within a local network. Learn how TPK is used in POS and ATM devices.
Merchant & POS
In order for a bank's POS devices to process transactions with payment scheme cards (Visa, MasterCard, Troy, etc.), they must pass certain test and control steps. Visa and MasterCard have test tools that include test cards and test scenarios for this purpose…
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.
ATM
RKL is the process of distributing a TMK (Terminal Master Key) to each terminal from a central point. It is used to remotely load keys onto POS and ATM devices, loading TMKs onto an ATM's keypad or activating them on a POS.
Credit Card
If your card's chip won't read, the chip data is likely corrupted or the POS's chip reader is faulty. This is usually caused by magnetic interaction with another card's chip.
Credit Card
Pre-authorization reduces the merchant's risk by blocking part of the card's limit for a set period. Since a credit card has a defined limit, an amount can be blocked against it. ATM cards and prepaid debit cards have no such limit to block.
Merchant & POS
Whether a card is required for a pre-authorization transaction depends on the type of POS used. On a physical POS, the card must be swiped or inserted to start the transaction. On a virtual POS, entering the card details manually is enough.
ISO 8583
F41 - CARD ACCEPTOR TERMINAL IDENTIFICATION: the terminal where a transaction took place. An 8-character alphanumeric value generated by the acquirer bank and assigned to the POS, managed as a unique terminal number at the acquirer.