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Credit Card
A look at the Union Bank RuPay combo card, an unusual design with two chips, two card numbers, two CVV2 values, two magnetic stripes, and two payment schemes combining credit and debit card functions.
Credit Card
CNP refers to a transaction made through a website or a company's own app payment page, where the card is not read by any device and its details are entered manually. It is short for Card Not Present.
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.
Payment Institutions & E-Money
Digitalization is showing itself first in banking and payment systems. The BRSA has announced it will begin issuing digital (branchless) bank licenses, opening the way for new digital banks in Turkey under an amendment to Banking Law No. 5411.
Payment Systems
ETBİS (Electronic Commerce Information System) is the system launched on 04/12/2017 so that e-commerce businesses are reachable and e-commerce data can be tracked reliably. Businesses must register before starting.
Fraud
In payment systems, fraud means using someone else's credit or debit card to carry out a transaction at a merchant or ATM, gaining unfair profit and causing loss to the real cardholder, the merchant, or the bank. Fraudsters…
HCE
Tokenization generates secure data from a credit card number, using specific algorithms, for use during authorization. In CNP transactions, it removes the risk of storing or compromising the original card number.
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.
Payment System Institutions
One of the most important transformations in banking over the last few years has undoubtedly been remote customer onboarding. Individuals can now become bank customers within minutes without visiting a branch. Digital identity checks and contracts largely solved a long-standing problem...
Merchant & POS
According to the Central Bank, the maximum commission rates banks may charge merchants are based on a reference rate: the latest two-week weighted average interest rate on 32–45 day Turkish lira deposits.
HSM & Security
TMK stands for Terminal Master Key, a key-encrypting key distributed manually or automatically under a previously established TMK. It is used to distribute data encryption keys to an ATM or POS terminal within a local network.
HSM & Security
ZPK, also known as the PIN Protection Key, is a data encryption key that is distributed automatically and used to encrypt PINs. It is also referred to as the 'Working Key'. This key allows PIN information to be carried securely across the network.