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ISO 8583
F25 - POINT OF SERVICE (POS) CONDITION CODE is the field that defines the condition under which a POS transaction was performed. Possible values include 00 Normal presentment, 01 Customer not present, 02 Unattended terminal, and more.
ATM
RKL is the process of distributing a TMK (Terminal Master Key) to each terminal from a central point. It is used to remotely load keys onto POS and ATM devices, loading TMKs onto an ATM's keypad or activating them on a POS.
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.
Security
Fraud cases where scammers pose as bank staff or other institution employees to obtain citizens' banking information have increased significantly recently. Interestingly, the new fraud trend closely mirrors the steps of a genuine banking procedure.
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).
Merchant & POS
Payments made over the internet are called digital payments. Card payments, cryptocurrency, and online banking transfers all fall within the scope of digital payment, along with mobile wallets and QR code payments.
Payment Systems
After switching to response code 70 for contactless limit-exceeded cases, we found that some overseas POS devices and acquirers did not handle it as expected. This post covers why the problem lies in the ecosystem and how to address it.
Credit Card
KKB was established, under banking law, to enable the exchange of all kinds of information and documents among at least five banks, and it also shares credit information about customers. The Credit Bureau of Turkey also serves deposit banks, participation banks, financial institutions, and more.
ATM
CDM is short for Cash Deposit Machine. It refers to ATMs that allow you to deposit money directly into your account using a card. You can use CDM ATMs to carry out transactions on your account without visiting a branch.
Payment Institutions & E-Money
On 7 October 2023, the CBRT amended the Communiqué on Information Systems of Payment and E-Money Institutions and Data Sharing Services of Payment Service Providers, first published on 1 December 2021. Links to the new text, a comparison table and a detailed summary of changes follow.
Payment Systems
The BRSA has published a draft amendment to the regulation on remote identification methods used by banks and electronic contract relationships. It extends remote onboarding to legal entities, including MERSIS-based verification of representatives.
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...