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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.

Istanbulkart transit and payment card

Credit Card

Istanbulkart: Both Transit Card and Payment Card

When I think back to the Akbil I used when I first arrived in Istanbul, I think it's fair to say that Istanbulkart has undergone a very significant transformation. Users can now track activity, top up and view balances right from their phones.

Diagram showing how the iCVV code is generated for EMV chip cards

Credit Card

What Is iCVV? How Is It Generated?

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.

Example of a POS receipt showing a warning for a foreign card transaction

Merchant & POS

Is Identification of Foreign Customers on POS Receipts Mandatory?

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.

Diagram showing payment systems components managed in-house by a bank

Merchant & POS

What Is 'In-house' in the World of Payment Systems?

In-house is a term widely used in the world of payment systems. It means that payment systems applications are managed end-to-end within the bank's own systems, both in terms of code and process.

Diagram illustrating the Remote Key Loading (RKL) process

ATM

What Is RKL (Remote Key Loading)?

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.

Illustration representing electronic payment systems

Payment Systems

What are Payment Systems?

Let's talk about payment systems, which we have heard more about since the internet entered our lives, and the basic structures behind them. The first credit card in the world was used in America in the 1920s.

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.

ATM machine vulnerable to hacking and fraud

ATM

Can ATMs Be Hacked?

ATMs are among the channels banks use most to serve customers. Besides being one of the most important channels, because they physically dispense cash and give access to a customer's account, many fraud cases occur at ATMs.