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Illustration of a marketplace solution connecting multiple online marketplaces and sellers

E-commerce

What Is a Marketplace Solution?

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.

Illustration representing an online marketplace connecting buyers and sellers

E-commerce

What is a marketplace?

A marketplace is an online payment platform where buyers and sellers come together, where products and services are listed for sale, and other operations are facilitated.

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.

Table listing Turkish bank names alongside their EFT codes

Online & Authorization

What are Bank EFT Codes?

Below are the EFT codes of banks located within Turkey, which are used both during the payment systems authorization stage (Field 32) and in banking transactions.

Diagram of ISO/IEC card standards defining credit card dimensions and layout

Credit Card

Standards that define credit card design and operation

When payment systems come to mind, credit cards are usually the first thing people think of. Credit cards are produced according to specific standards, both in visual design and during printing. These standards belong to the ISO/IEC 781X family.

Illustration representing Merchant Category Code classification for card transactions

Merchant & POS

What Does a Restricted/Prohibited MCC Mean?

The MCC code, or Merchant Category Code, is a 4-digit code used to classify merchants. Some MCC codes are restricted or prohibited, and POS terminals or card transactions may be blocked when such a code is used.

Illustration showing the consequences of entering an incorrect CVV2 code in an online transaction

Credit Card

What happens if I enter CVV2 incorrectly in my online transactions?

With the advancement of technology, the use of credit cards in online transactions and the variety of payment methods have increased. To make an online transaction with a credit card, you need: Card Number, Expiration Date, and CVV2 (the 3-digit number on the back of the card).

Warning illustration about a fake social media gift points scam targeting card details

Credit Card

Congratulations, You Won Gift Points..

A real attempted card fraud story: a fake Facebook friend request, a promise of free bank points, and a request for card number, expiry date and CVV2. Here is what happened and how to protect yourself.

Diagram showing the structure of ISO 8583 field F48 (Additional Data)

ISO 8583

ISO 8583 Field Descriptions (F48)

DE 48 - ADDITIONAL DATA: these are additional data fields that can be used specifically for transactions. It is 255 characters long. Field F48 carries many pieces of information and is divided into PDS (Private Data Subelements).

Example of RRN printed on a POS receipt used to trace ISO 8583 transactions

ISO 8583

ISO 8583 Field Descriptions (F37)

F37 - RETRIEVAL REFERENCE NUMBER: a 12-digit alphanumeric value generated by the Acquirer that initiates the transaction. It must be printed on the POS receipt or ATM slip. RRN is the reference number that allows a transaction to be located.