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Credit card and smartphone illustrating online card payments without physically presenting the card

Credit Card

Do I have to use my physical card when shopping?

In the early years of credit cards, using the card physically was mandatory. With the internet and new technologies, we can now pay with only the card details, 3D Secure and contactless NFC payments, even without the card in hand.

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 a money transfer being sent from one payment card to another

Credit Card

What Is a Card-to-Card Money Transfer?

Card-to-Card Money Transfer (CCMT) lets customers send money 24/7 from a credit, debit, or prepaid card to another card via ATM, internet banking, call center, or mobile app.

Comparison of online and offline token verification in payment transactions

HCE

What Are Transaction-Based (Online/Offline) Token Types?

Token types vary depending on the verification method used in a transaction. In offline transactions, general checks are performed by the mobile app and card reader without any verification in the card system. In online transactions, token verification is sent to and verified by the issuer.

Illustration showing the difference between a cancellation and a refund transaction

Merchant & POS

What Is a Cancellation (Void) and a Refund?

Credit card transactions made via POS sometimes need to be reversed. These are called a cancellation (void) or a refund. What's the difference, and when does each apply?

Credit cards inside an open wallet

Merchant & POS

Who is liable for a transaction made without a PIN?

Almost all of us carry at least one credit card. Imagine losing your wallet with all your cards inside, and someone with bad intentions finding it and using the cards without a PIN. Who bears the responsibility?

Diagram showing how card transaction data flows through the ISO 8583 messaging standard

Merchant & POS

What is ISO 8583?

Introduction: When a card (credit card/debit card/prepaid card) is used at an ATM or POS, data must be carried securely between systems. For example, in a store sale, the POS initiates the transaction, which must reach the cardholder's bank intact.

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.

GET DATA command flow in an EMV transaction

EMV

What is the GET DATA command?

The GET DATA command is used to retrieve a primitive data object that is not encapsulated in a record within the current application. It is used to retrieve certain primitive data objects interpreted by the application on the ICC.

Deutsche Bank Tarjeta Calma credit card featuring dynamic CVV technology

Credit Card

Deutsche Bank produces a card with a CVV that changes every 4 hours

Germany-based Deutsche Bank is launching a new credit card in Spain with a dynamic CVV code that changes every four hours, to make online shopping more secure. Deutsche Bank partnered with Mastercard and Idemia for the new card, launched under the Tarjeta Calma brand.