Online & Authorization
What is a Payment Gateway?
A payment gateway is the high-security connection banks provide for purchases made with a credit or debit card. Learn how it is set up and why it protects cardholder data.
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"Payment Gateway"
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Payment Systems
What is the BKM Payment Gateway?
BKM Payment Gateway is the general name for platforms that let government institutions accept card payments through BKM as intermediary. For the first time, SGK and e-Government title deed payments can be made with all banking cards.
Security
What Is a Quarterly Network Scan?
An external network scan run every 3 months by an Approved Scanning Vendor authorized by card schemes such as MasterCard and Visa, required for PCI DSS compliance. It checks whether merchant systems are protected against external threats.
Payment System Institutions
What Are BKM Public Collection Solutions?
BKM (Interbank Card Center) was founded in 1990 to clear and reconcile credit and debit card payments. This post covers its public collection solutions: contactless transport in Konya, SGK premium payments and e-Government gateway fees.
Merchant & POS
What is Address Verification Service (AVS)?
Address Verification Service (AVS) is a fraud prevention system that helps limit fraud and chargebacks when used effectively. It verifies that the address a customer enters matches the cardholder's address on file with the issuer.
Payment Systems
What Is TCR (Transaction Record Component)?
TCR stands for Transaction Record Component, the packets that carry transaction information in a clearing system. Transaction types in a clearing file are distinguished by transaction code and usage code values, and this data is sent inside TCR packets.
E-commerce
What is Online Payment?
Making payments over the internet using a card is called online payment. Learn what online payment systems are used for and what happens behind an online transaction, from the payment gateway to the issuing bank.
Payment Systems
What is Store and Forward (SAF)?
Store and Forward (SAF) describes offline transaction processing. It was originally developed when modems were introduced and connections were not always stable, letting terminals store transactions and forward them once connectivity is restored.
Merchant & POS
What Is Partial Authorization?
Partial Authorization lets an issuer approve part of a transaction instead of declining it when the balance or limit is insufficient. This post covers how it works in ISO 8583, whether it is mandatory, and why it matters for the business.
Credit Card
What Is the Communiqué on the Management of Information Systems Used in Bank Card and Credit Card Transactions?
This communiqué sets the rules for managing information systems used in bank card and credit card transactions. Card scheme operators, issuers, acquirers, merchants and outsourced service providers are all within its scope.
Fraud
What is Visa Merchant Purchase Inquiry (VMPI)?
Chargeback is the process of refunding a credit card payment when the goods or services that should have been received were not, or when transactions not made by the cardholder are identified. In Turkish it is translated as reversal of presentment.
Credit Card
What Happens When a Product Is Launched Under a New BIN?
When banks launch a new card product, they can do it under an existing BIN or a new one. A new BIN requires much more work: BKM announces it, every bank defines it and every POS has to download it.