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Chart showing the global decline in the number of ATMs

ATM

The number of ATMs is declining worldwide

ATMs, which let us meet our cash needs, pay card debt, make transfers, and even withdraw or deposit cash via QR code without a card, have started losing popularity after all these years.

Diagram illustrating the structure of an Issuer Identification Number (IIN) on a payment card

Credit Card

What is an Issuer Identification Number (IIN)?

Issuer Identification Number (IIN) is the first 6 digits of 16-digit cards and the first 8 digits of 19-digit cards. It is more commonly known as BIN (Bank Identification Number). Learn what the IIN table holds and how to look one up.

Numberless bank card design concept with no printed digits

Credit Card

Did Someone Say a Numberless Card?

When we think of a credit card, we picture one printed with the Card Number, Cardholder Name, Expiration Date, and CVV2 information. But what if we told you there is a card with no numbers on it at all? It may sound strange at first, but...

Illustration of a commercial debit card issued to companies and sole proprietorships

Debit Card

What Is a Commercial Debit Card?

A debit-featured card issued to a sole proprietorship, a commercial company, or a foundation/association is called a commercial debit card. Operationally, it is no different from a personal debit (ATM) card. It has its own limit, status, and user.

Photograph of a POS terminal used for Chip and Pin card payments

Merchant & POS

What is Chip&Pin?

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.

Courier handing a package to a customer for cash-on-delivery payment

Merchant & POS

What Is Cash on Delivery?

Cash on delivery means paying for an online order at the moment of delivery, usually in cash, though some e-commerce sites also accept card payment at the door. It boosts sales and builds trust, but carries risks like missing POS terminals and refused deliveries.

Illustration of digital transformation in payment systems

Merchant & POS

How Digital Are You in Payment Systems?

Digitalization has brought major change to payment systems, just as it has to every area of our lives. Its biggest impact has been turning the financial world into something virtual, spanning IoT, mobile payments, blockchain and biometrics.

Old mechanical credit card imprinter machine used to transfer embossed card details onto a sales slip

Merchant & POS

What Is an Imprinter?

An imprinter is the name given to devices that transfer all the information embossed on a credit card onto a paper sales receipt. Before POS terminals, it was commonly used by merchants for authorization transactions.

Table of Reimbursement Attribute values used in the clearing process

Clearing

What is Reimbursement Attribute?

DE03/Reimbursement Attribute carries the Reimbursement Value of a transaction. BKM uses this information as the basis for calculating interchange fees and charges between member banks.