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Diagram of symmetric key types used in payment systems

HSM & Security

Types of Symmetric Keys

In the world of payment systems, keys and their uses are important for transferring information from one place to another, storing information, and securing authorization and scripting steps. Key types are divided into six categories based on their purpose.

Table showing service code values and their meanings for payment cards

Credit Card

What is the Service Code on Cards?

The service code is information printed on a card's Track 1 and Track 2 data, covering card type, PIN usage, and domestic/international usage status. It is kept at the product level in bank systems.

Illustration symbolizing the shift from search engines to AI-driven decision engines in online shopping

Payment Systems

Agentic Commerce Series - Part 2

If users start describing their needs instead of searching for products, one of the internet economy's most fundamental habits could change.

Internet of Things connected devices illustration

Payment Systems

What Is IoT (Internet of Things)?

The Internet of Things (IoT) is a concept first used by Kevin Ashton in a 1991 presentation. It refers to many electrical devices, such as watches, fridges and washing machines, communicating with each other.

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...

Workflow diagram of bank and courier file integration for card distribution

Courier & Delivery

How Is Bank Integration Done for Card Distribution via Courier?

Courier companies and banks generally carry out the card distribution process through file exchanges. (Some banks also use web service integration; in that case the information normally sent via file is transmitted within the service.) With the courier...

Conceptual illustration of competing players vying for power in agentic commerce

General

Agentic Commerce Series – Part 6

Who will win in Agentic Commerce? Owning the customer used to be a huge advantage. Once an agent starts deciding on the customer's behalf, where does the real power move to?

MasterCard Identity Check logo and authentication illustration

Security

What is MasterCard Identity Check?

Payment security is very important in payment systems. To increase security, transactions require additional information such as PINs and passwords. Remembering which information to use, and keeping it in mind without forgetting…

QR code payment being scanned with a smartphone at a point of sale

Laws & Regulations

The 'TR QR Code' Era in Payment Systems

The Regulation on the Generation and Use of TR QR Code in Payment Systems sets the standards for QR codes in payment services. The Central Bank has taken the first step by drafting rules for a common QR code structure.