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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.
Credit Card
A single BIN cannot be used to issue both a credit card and a debit card. If a bank offers both products, it has at least two different BINs, allocated and announced separately by card type.
Payment Systems
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.
Merchant & POS
Terminal Verification Results (TVR): a sequence of bits produced when a terminal reads an EMV card, based on logical checks such as an expired card. This data object is used to decide whether a payment transaction should be accepted online, declined, or allowed to proceed.
Online & Authorization
You press the pay button and the screen says the transaction failed. Behind that failure are checks on your balance and transaction security. This post explains how funds confirmation APIs work, where they apply, and the situation in Turkey's open banking.
Merchant & POS
These are codes placed into the terminal software by the acquirer that govern the rules for whether transactions go online or are declined, covering offline approval, offline decline, and online submission due to issuer risk...
Payment Institutions & E-Money
Open banking means sharing customers' financial information with a third-party fintech company so that a range of banking and financial services can be offered to them. It works through API integrations. This post covers its status in Turkey and the new BRSA regulation.
Fraud
Fraud monitoring refers to tracking card transactions through scenarios to detect potential fraud and taking rapid action immediately before or after a transaction occurs - such as identifying a suspicious transaction, calling the customer, or temporarily blocking the card to prevent authorization.
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
A prepaid card is a customized chip or chipless card that is not linked to a bank account and has no credit limit like a credit card. You can only spend up to the amount loaded onto the card.
EMV
The Visa EAS Server (Extended Access Service) is a server used in Visa’s authentication infrastructure. It was developed to run the cardholder authentication process securely between banks and the Visa network, particularly within Visa Secure (3-D Secure 2.x).
Credit Card
The effect of credit cards on inflation has been debated for years. Because I am asked about it so often, I ran a poll on arifunal.com to gather readers' views. This post weighs the positive and negative effects and compares the poll with the research findings.