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Merchant & POS
In-house is a term widely used in the world of payment systems. It means that payment systems applications are managed end-to-end within the bank's own systems, both in terms of code and process.
Security
The first transaction made after a customer's card data is stored with a merchant is called the First Credential-On-File transaction. BKM expects it to be flagged with the value "C" in switch message field DE48.PDS86, and BRSA draft rules govern how card data may be stored.
Merchant & POS
Checking whether the transaction receipt is printed after a POS transaction, and verifying the amount on it, has probably become a habit for all of us. So what about contactless transactions?
Credit Card
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.
Merchant & POS
Isbank, a leading player in accepting payments from abroad in Turkey, has started accepting Discover and Diners Club cards via an agreement with Discover Financial Services, making it the bank accepting the most card brands in the country.
FAST
The Central Bank of the Republic of Turkey (CBRT) has implemented a significant limit increase in the FAST system. Under the regulation effective August 26, 2026, the FAST money transfer limit was raised from TRY 100,000 to TRY 300,000. The same increase also applies to Request to Pay...
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...
Online & Authorization
In EMV, data is stored in Tag-Length-Value (TLV) format, and it is carried between the card, the POS terminal, and the authorization system in this same format. This post lists every EMV Tag, its type, and its description.
Merchant & POS
Just like a car, a POS device has a brand and a model, for example Ingenico ICT220 or Ingenico ICT250. Each model differs from the others: some have a contactless reader while others may not, and screens, memory and features vary.
Payment Systems
No. Besides the POS and the host, permissions can also be kept in the issuer data. This lets banks, for example, allow installments only for a brand's BINs, or allow mail order for credit cards but not debit cards.
ISO 8583
F41 - CARD ACCEPTOR TERMINAL IDENTIFICATION: the terminal where a transaction took place. An 8-character alphanumeric value generated by the acquirer bank and assigned to the POS, managed as a unique terminal number at the acquirer.
Merchant & POS
No. Besides the terminal data, contactless limits can also be managed from the chip data. A “Use Merchant Contactless Limits” field decides which set of limits the POS applies.