Chargeback
What are the chargeback dispute types?
A chargeback is a dispute raised against a card transaction when the cardholder did not make it or does not recall it. The dispute types vary depending on the situation; let's look at them.
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"card fraud"
116 articles found
Fraud
How Do Fraud Applications Work?
Fraud management is used to detect possible fraud on customer accounts and provides additional security for transactions when necessary, making it one of the top priorities for banks.
HCE
What is the HCE Cloud-Based Security Infrastructure Like?
The HCE cloud-based security infrastructure consists of four main pillars: Tokenization, Risk Management, Session Keys, and User/Device Authentication. Tokenization indicates the type of token generation, and there are three different tokenization methods.
ISO 8583
ISO 8583 Field Descriptions (F18)
F18-MERCHANT TYPE: This is the merchant's category code (MCC) information. It must contain values from the Mastercard or Visa MCC Code list. It is a 4-digit numeric value. For ATM transactions, MCC code 6011 should be sent. The role of MCC in authorization...
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.
Merchant & POS
What Happens Behind the Scenes When a QR Code Is Scanned? | Closed-Loop Payments #2
In the first post I explained what closed-loop payment systems are and how they differ from open-loop ones. Many of the replies I received boiled down to one question: how do these systems actually work behind the scenes once a QR code is scanned?
Fraud
What is a Man-in-the-Middle Attack (MITM)?
A man-in-the-middle attack is a method in which an attacker inserts themselves between the server and client to intercept users' information, steal passwords, and gain access to accounts on a local network. This fraud mostly occurs over public internet connections.
Payment Systems
What are offline transaction parameters? Can you give examples of how offline transactions are reported to the HOST?
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.
Payment Systems
What Is a Fictitious Transaction? Do Merchants That Engage in Fictitious Transactions Share Common Characteristics?
According to the Banks Association of Turkey, collusive transactions that misuse POS devices, debit cards, or credit cards for purposes other than their intended use are called fictitious transactions - in short, transactions used outside their intended purpose.
Payment Systems
What is a Non-Secure transaction?
A non-secure transaction is an e-commerce transaction approved without any verification before authorization, such as SMS OTP. In short, authorization is obtained by verifying only the card number, expiration date, and CVV2.
ATM
What Should We Pay Attention to When Using an ATM?
Because the ATM is the channel where customers physically handle cash, fraud cases happen there very often. Here are the precautions you can take to use ATMs safely.
Security
What Is OTP (One-Time Password)?
These are passwords generated for one-time use and sent to the cardholder's phone to verify card transactions in payment systems. The password sent during a 3D Secure transaction is a common example.