Reduce Online Fraud With Cardknox’s Support For EMV® 3-D Secure

An advanced authentication solution for e-commerce merchants, now available through Cardknox.

What is 3-D Secure?

3-D (Three-Domain) Secure is a card-not-present security protocol that was first developed by Visa over 15 years ago to reduce online fraud. It does so by providing issuing banks with the right tools and framework to analyze key data points and authenticate the cardholder’s identity during checkout—all within real time. As a result, merchants benefit from reduced rates of fraud and are not held liable for fraudulent transactions that were authenticated. 

The card brands each have their own branded 3-D Secure solutions: Visa Secure, Mastercard SecureCode, Discover ProtectBuy, and American Express SafeKey.

Introducing EMV®
3-D Secure 2.0


In recent years, EMVco—a global organization that oversees payment security—realized that there was a need for a next-generation 3-D Secure solution that would take into account the latest industry technologies and standards. As a result, EMVco launched its EMV® 3-D Secure solution, or EMV 3DS, in 2016. Previously known as 3-D Secure 2.0, this powerful technology incorporates the latest industry advancements and it’s on track to becoming a global standard for e-commerce payment security.

EMV® 3-D 2.0 Secure Improvements


Robust Risk-Based Authentication

EMV® 3-D Secure utilizes additional customer- and transaction-specific data points, such as the consumer’s email address, name, or phone number to authenticate a greater number of transactions in less time and without the cardholder’s involvement.


Removes Friction & Speeds Up Checkout

EMV® 3-D Secure’s robust data exchange reduces the odds that the customer will need to take the time to verify their identity. In the event that customer verification is needed, EMV® 3-D Secure offers even more customer-friendly authentication methods, and it enables merchants to embed the authentication process into their payment flow (rather than redirecting the cardholder to the issuing bank’s website).

How EMV® 3-D Secure Works

Here’s what the typical transaction flow looks like for a merchant who has integrated Cardknox’s support for EMV® 3-D Secure:

  1. The customer initiates a transaction online.
  2. The Cardknox payment gateway passes key data points on to the cardholder’s issuing bank so that they can evaluate risk.
  3. If the issuing bank successfully authenticates the customer’s identity and decides that the transaction poses a low fraud risk, then the transaction is authorized. This is the case with the majority of 3-D Secure transactions. Note: when this occurs, the merchant is not held liable if the transaction turns out to be fraudulent; the issuer would be liable instead.
  4. If the issuing bank was unable to authenticate the cardholder’s identity per the above steps, the cardholder will be prompted to provide more information. The issuing bank will then choose whether or not to authenticate the transaction.

Are You a Developer?

Bring your merchants an online checkout experience that’s extra-frictionless and equipped with robust fraud prevention. Our powerful SDK is a breeze to integrate, and it provides merchants with a world of e-commerce features and benefits. Contact us today to learn more, and be sure to check out our API in our Knowledge Base.

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