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Credit Card
Credit cards and POS are two core products banks offer customers. At first glance, credit cards seem to generate no return beyond interchange fees, card fees, and late fees.
E-commerce
A marketplace solution is a service offered by software that enables communication and data exchange between different marketplaces. It is a multi-vendor online shopping infrastructure, including the payment system, for listing, searching and buying products and services.
Merchant & POS
Partial authorization lets an issuer approve part of the requested amount when the card lacks the full balance, with the rest paid another way. This post covers the technical, receipt, clearing, reconciliation, merchant and certification requirements for acquirers.
Merchant & POS
Transactions made via POS are kept under a number called the batch number, which increases automatically and arithmetically. This number increases after each end-of-day (batch close) process.
ATM
Cash trapping is a type of ATM fraud in which criminals install a device on the ATM or interfere with its operation to trap dispensed cash, making it difficult to detect until the fraudster returns to retrieve the trapped money.
FAST
Until the FAST system was introduced, money transfers were made through the EFT structure. Due to evolving technology and changing customer expectations, a new structure called FAST was introduced. So what are the differences between EFT and FAST?
Payment Systems
All payment and electronic money institutions operating in Türkiye fall under the relevant regulation. A license from a foreign authority is not enough; a foreign institution must obtain a license from the Central Bank.
Credit Card
CVK (Card Verification Key) is the key information used to generate and verify CVV/CVC values, confirming their validity. It is kept as a pair of keys, CVK A and CVK B, encrypted under TMK, ZMK or LMK.
Open Banking
First, it is useful to briefly recall the concepts of Banking as a Service and Open Banking. Banking as a Service (BaaS) lets interface developers connect directly to service banks' systems via APIs and open banking services to run banking transactions for customers...
Credit Card
Yes. A certificate must be generated for every new BIN and loaded onto the card chip, establishing secure communication between the chip and the terminal. This is especially critical for verification in offline transactions.
Online & Authorization
A reference guide to authorization response codes seen on POS and ATM transactions, with plain-language explanations of what each code means and what to do about it.
ATM
In a letter to banks as part of the fight against inflation, the CBRT asked them to stock small-denomination banknotes in ATMs instead of 200 TL notes. Is this a ban or a recommendation, and what are the operational consequences for ATMs and banks?