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E-commerce

What Is B2B (Business to Business)?

B2B (Business to Business) is the name for systems used in the dealer networks of large companies, where dealers run supply, stock, distribution and marketing processes efficiently in a closed network.

Diagram of the affiliate marketing relationship between merchant, affiliate, and customer

Payment Systems

What is Affiliate Marketing?

Affiliate marketing, in short, is a performance-based promotion and sales approach that distributes an online retailer's product marketing to different people and organizations, letting it achieve the most sales with the least risk.

3D Secure opt-out online payment illustration

Merchant & POS

What Is Opt Out?

In online transactions, Opt Out is the cardholder exercising the right not to enroll in 3D Secure. It is not unlimited: only as many transactions as the issuer allows can be made without 3D Secure.

Diagram illustrating open banking, where customer financial data is shared with fintech companies through APIs

Payment Institutions & E-Money

What Is Open Banking?

Open banking means sharing customers' financial information with a third-party fintech company so that a range of banking and financial services can be offered to them. It works through API integrations. This post covers its status in Turkey and the new BRSA regulation.

Illustration of a phone scam call impersonating a bank

Security

We're Calling From the Bank, Your Account Has Been Compromised...

Fraud cases where scammers pose as bank staff or other institution employees to obtain citizens' banking information have increased significantly recently. Interestingly, the new fraud trend closely mirrors the steps of a genuine banking procedure.

Illustration of ATM machines representing a shared banking network

ATM

The Netherlands is moving to a shared ATM network

Banks generally prefer to handle their own ATM software and operations. Some banks have third-party firms develop the software while handling operational processes themselves, so each bank ends up doing separate work for both.

Zone Working Key PIN encryption between banks

HSM & Security

What Is ZWK (Zone Working Key)?

ZWK stands for Zone Working Key. It encrypts the PIN so that it can travel securely between different financial institutions, such as the acquiring bank and the issuing bank.

Diagram of PIN Encryption Key (PEK) structure

HSM & Security

What is PEK (Pin Encryption Key)?

PEK is the abbreviation for Pin Encryption Key. The role of PEK is to encrypt PINs. There are two types of PEK: TPK (Terminal Pin Key) and ZWK (Zone Working Key).

Illustration representing the Card Protection Plan (CPP)

Security

What is CPP (Card Protection Plan)?

Credit cards are one of the most important payment instruments in daily life. As technology advances and mobile payments and ATMs handle nearly all transactions, credit card fraud is also diversifying and increasing.