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Security
With Chip&Pin technology, card PINs and chip-based transactions became widespread. As online shopping grew, strengthening the security of these transactions became a necessity, and OTP began providing that transaction security.
Payment Institutions & E-Money
The Law defines e-money as monetary value issued in exchange for funds accepted by the issuer, stored electronically, used for payment transactions and accepted as a payment instrument by persons other than the issuer. This post explains e-money institutions and the services they may provide.
Laws & Regulations
Yes. Payment institutions themselves cannot engage in commercial activities other than payment services, but their agents may continue their other commercial activities alongside the payment services.
Merchant & POS
In EMV-based debit card transactions, PIN verification is decisive for both security and liability. What happens when a card that only supports online PIN is sent to the issuer without a PIN, and the issuer approves it? Who owns the risk?
Payment Systems
Every payment transaction completes in seconds, yet dozens of controls run behind the scenes. This post covers the precautions for authorization and clearing, the critical role of reversals, and the financial loss scenarios most often seen in the field.
Merchant & POS
Dynamic verification means that, in a payment initiated with a dynamic QR code, transaction-specific details such as the recipient's name, account number and amount are verified online by the receiving participant at the time of the transaction.
Security
Before 3D Secure 2.0, let's explain what 3D Secure is. 3D Secure is a two-layer payment authentication system that protects both the cardholder and the merchant in online payments. First released by Visa in 1999, it was later adopted by other card schemes…
HCE
There are three types of PIN strategy in HCE (Host Card Emulation): No PIN, Card PIN and Wallet PIN or customer biometric data. Each balances user experience and security differently.
Merchant & POS
A Card Recovery Bulletin is a list of problem cards (lost, stolen, expired, over-limit, counterfeit or otherwise flagged) published by card schemes such as Visa or MasterCard. It shows whether a card number is listed on the date of purchase.
Payment Institutions & E-Money
According to ÖDED, its members are institutions that have applied for or received a license as a payment institution and/or electronic money institution under Law No. 6493. The member list by field of activity is on its website.
Merchant & POS
Today is April 23, the 100th anniversary of the opening of the Grand National Assembly. Taking Children's Day as a starting point, this post looks at digitalization, Generation Z, blockchain, biometric payments and the cashless society from a payment systems perspective.
Payment Systems
In payment or cash withdrawal transactions, the TR QR Code is generated by the POS or ATM. The card issuing bank must build its systems to read and act on this code. Errors usually stem from mishandling the long and short QR code flows, which are explained here.