Credit Card
What is a Dynamic Card Security Code (CSC)?
It is a CVV2/CVC2 code that changes every few minutes instead of the static code printed on the back of a credit card, aimed at reducing fraud risk in CNP (Card Not Present) transactions.
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"Payment Methods"
144 articles found
HSM & Security
What is TMK (Terminal Master Key)?
TMK stands for Terminal Master Key, a key-encrypting key distributed manually or automatically under a previously established TMK. It is used to distribute data encryption keys to an ATM or POS terminal within a local network.
Online & Authorization
What Is HCE?
HCE lets a mobile device's operating system emulate the cards we use daily (credit, debit, gift cards, etc.) to make contactless payments via NFC. In other words, our phones behave like the cards we use for payments.
Merchant & POS
A look at April 23 through the lens of digitalization and payment systems
Today is April 23, the 100th anniversary of the opening of the Grand National Assembly. Taking Children's Day as a starting point, this post looks at digitalization, Generation Z, blockchain, biometric payments and the cashless society from a payment systems perspective.
Chargeback
What is Arbitration?
Arbitration, by definition, is a dispute resolution method in which disputes are settled by arbitrators the parties choose themselves, rather than by official courts. In payment systems, it follows a chargeback when the issuer and acquirer cannot agree.
From My Readers
Is there an SMS notification structure for Mail Order transactions?
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...
Payment Systems
Why Am I Getting an Error When I Try to Pay with a TR QR Code?
In payment or cash withdrawal transactions, the TR QR Code is generated by the POS or ATM. The card issuing bank must build its systems to read and act on this code. Errors usually stem from mishandling the long and short QR code flows, which are explained here.
Credit Card
What is dCVV2?
Most of us are familiar with CVV2/CVC2 - the security code on the back of a card, usually three digits. So what is dCVV2? Here's how dynamic CVV technology works and why Visa introduced it for online payments.
Credit Card
What Products and Services Does KKB Offer Directly to Members?
KKB was established, under banking law, to enable the exchange of all kinds of information and documents among at least five banks, and it also shares credit information about customers. The Credit Bureau of Turkey also serves deposit banks, participation banks, financial institutions, and more.
E-commerce
What Is a Marketplace Solution?
A marketplace solution is a service offered by software that enables communication and data exchange between different marketplaces. It is a multi-vendor online shopping infrastructure, including the payment system, for listing, searching and buying products and services.
Merchant & POS
What Is a Contactless Reader?
These are devices connected to a POS terminal that allow fast payments, up to a certain limit, using contactless credit cards or prepaid cards by tapping them on the contactless reader instead of the POS's card reader. Can every POS have a contactless reader attached?
Payment Systems
Visa Overseas Contactless Transactions – After Code 70 (Part 2)
After switching to response code 70 for contactless limit-exceeded cases, we found that some overseas POS devices and acquirers did not handle it as expected. This post covers why the problem lies in the ecosystem and how to address it.