Search
80 articles found
Payment Systems
In payment systems, an “appeal” is the process of objecting to the outcome of a transaction dispute. It is usually discussed alongside chargebacks, but it plays a critical role in interbank dispute resolution, when a party asks the card scheme to re-evaluate a concluded decision.
Payment Systems
Offline transaction parameters are divided into two types: contact offline and contactless offline. These parameters can be managed separately through Terminal data and Chip data. Offline transactions can be reported to the HOST after an online transaction, after X occurrences, and more.
Credit Card
The limit set when the card was issued cannot be increased without the cardholder's permission and approval. If you have instructed periodic limit increases, later increases take effect unless you object within fifteen days of being notified.
ATM
The name given to the solution developed by NCR against card skimming and fraud. With SPS, the ATM network is protected from the cost and risks of skimming attacks, which cause over 2 billion dollars in global losses annually.
Payment Systems
Every payment transaction completes in seconds, yet dozens of controls run behind the scenes. This post covers the precautions for authorization and clearing, the critical role of reversals, and the financial loss scenarios most often seen in the field.
Agentic Commerce
Are We Ready to Give an AI Agent the Authority to Make Payments? Having long looked at complaint and dispute processes in payment systems, I think granting an agent payment authority is far different from research or product selection.
3D Secure
Isbank (Turkiye Is Bankasi) has completed Europe's first migration to EMV 3D Secure 2.0, the current version of the 3D Secure authentication infrastructure used to verify cardholders in online card purchases. Deputy General Manager...
Credit Card
From the outside, Visa contactless looks simple, but once the limit is exceeded and PIN comes into play it gets deeper. Why do response codes 65 and 70 behave so differently on POS devices in different countries, such as the Netherlands and Saudi Arabia?
Payment Systems
When POS and HOST transactions don't match at end-of-day, the end-of-day falls into batch upload. This article covers how the POS sends transactions via the 320 message, how HOST responds with 330, and how to monitor and resolve recurring batch upload failures.
Chargeback
The Dispute Management System (HİYS) is the system used among BKM members to share chargeback transactions and the supporting documents that must accompany them, linked to Domestic Clearing and Settlement System data.
Agentic Commerce
Can AI Decide on Our Behalf? Letting an AI agent handle research can make life much easier. The real question is where that should stop, and how much decision-making authority we are ready to hand over.
Payment Systems
Elon Musk was set to unveil Neuralink, a brain-computer interface. What is Neuralink, and how might payment systems change if payments, cards, ATMs and POS devices move from phones to a chip in the brain?