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Illustration representing credit card fraud and online payment security risks

Fraud

What is Fraud? What are the Types of Fraud?

With the growth of credit and debit card usage and rising e-commerce transaction volumes, there has been a serious increase in exploiting user negligence to harm customers. Fraud means using someone else's card at a merchant or ATM to gain unjust profit.

Illustration representing electronic payment systems

Payment Systems

What are Payment Systems?

Let's talk about payment systems, which we have heard more about since the internet entered our lives, and the basic structures behind them. The first credit card in the world was used in America in the 1920s.

Illustration representing a mail order card payment transaction

Merchant & POS

What is a Mail Order transaction?

Mail Order (Mail Order/Telephone Order) is a transaction made by selecting the Mail Order option on a POS or through the virtual POS interface, entering the card number, expiration date, and CVV2. It is typically used when the cardholder is not present.

POS terminal screen showing the cancellation transaction menu

Merchant & POS

How does the cancellation (void) process work on a POS?

Many transactions are carried out with cards on a POS terminal. Sometimes a transaction must be reversed, and cancellation (void) is one such transaction. A Sale can only be cancelled on the POS before the batch (end of day) is closed; otherwise a refund is needed.

Diagram comparing the 3D, 3D Pay, and 3D Pay Hosting payment models

Payment Systems

What are the 3D Secure Payment Models?

In card payment transactions made via a physical POS device, entering the card's PIN keeps the transaction secure, while in virtual POS transactions, security is provided through the 3D Secure flow. Are 3D Secure payment methods standardized? There are 3 different 3D Secure models.

Close-up of the card security code printed on the back of a payment card

Credit Card

What is the Card Security Code?

The Card Security Code is a 3-digit numeric value used for cardholder verification and to reduce fraud risk. It is generated during card production and printed either on the card or encoded into the Track 1 and Track 2 data.

Illustration representing the PA-DSS payment application security standard

HSM & Security

What is PA-DSS (Payment Application Data Security Standard)?

PA-DSS (Payment Application Data Security Standard) is the Payment Application Data Security Standard set by the PCI SSC, a global security standard created by the Payment Card Industry Security Standards Council.

Numberless bank card design concept with no printed digits

Credit Card

Did Someone Say a Numberless Card?

When we think of a credit card, we picture one printed with the Card Number, Cardholder Name, Expiration Date, and CVV2 information. But what if we told you there is a card with no numbers on it at all? It may sound strange at first, but...

Illustration of a 3D Secure payment verification screen

Merchant & POS

What is a 3D Secure transaction?

In e-commerce transactions, the system developed to increase transaction security for payments made with credit and debit cards is called 3D Secure. When paying with 3D Secure, a special payment screen provided by the banks appears on the user's screen.

Illustration explaining what a non-secure e-commerce card transaction is

Payment Systems

What is a Non-Secure transaction?

A non-secure transaction is an e-commerce transaction approved without any verification before authorization, such as SMS OTP. In short, authorization is obtained by verifying only the card number, expiration date, and CVV2.