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Diagram showing payment systems components managed in-house by a bank

Merchant & POS

What Is 'In-house' in the World of Payment Systems?

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.

Visa PIN security program guide illustration

Security

What Is the Visa PIN Security Program Guide?

The Visa PIN Security Program Guide describes the security and procedural requirements for acquirers and their agents that process PIN data or manage keys for PINs associated with Visa transactions.

Illustration of a Terminal Master Key (TMK) securing a payment terminal

HSM & Security

What is TMK (Terminal Master Key)?

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.

Illustration representing the products and services KKB offers directly to its member institutions

Credit Card

What Products and Services Does KKB Offer Directly to Members?

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.

Illustration of personal data protection under the Turkish Personal Data Protection Law (KVKK)

Merchant & POS

What is the Personal Data Protection Law (KVKK)?

The Personal Data Protection Law was adopted by the Grand National Assembly of Turkey on 24/03/2016 and published in Official Gazette No. 29677 on 07/04/2016. It protects individuals' rights in the processing of personal data and sets the rules that data controllers must follow.

Deutsche Bank Tarjeta Calma credit card featuring dynamic CVV technology

Credit Card

Deutsche Bank produces a card with a CVV that changes every 4 hours

Germany-based Deutsche Bank is launching a new credit card in Spain with a dynamic CVV code that changes every four hours, to make online shopping more secure. Deutsche Bank partnered with Mastercard and Idemia for the new card, launched under the Tarjeta Calma brand.

Illustration for the question about SMS notifications in mail order transactions

From My Readers

Is there an SMS notification structure for Mail Order transactions?

I occasionally receive questions from my readers, and I answer them by email or through other channels. Since others may have similar questions, I will publish these questions on my site along with the answers. Hello Mr. Arif, I read your articles from time to time and...