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"Non-Secure transaction"

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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.

Diagram showing 3D Secure, Half 3D Secure, and Non-3D Secure transaction flows based on VERes and PARes response codes

Payment Systems

What is a Half 3D Secure transaction?

A Half 3D Secure transaction is, in short, the term used when the merchant supports 3D Secure but the card does not. Can such transactions occur as 3D Secure/Half Secure when the merchant does not support 3D Secure? A transaction started without the 3D process is treated as Non-Secure.

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.