Introduction

The purpose of this EMV® 3-D Secure White Paper (White Paper) is to promote a better understanding of certain EMV 3-D Secure (3DS) features and provide example use cases that highlight their benefits.

The 3DS protocol is a security measure designed to provide an additional layer of protection for online transactions and to reduce the risk of fraud in e-commerce transactions.

This White Paper describes three possible 3DS flows: the Frictionless Flow, the Challenge Flow, and Recurring and Instalment Transactions, along with example use cases.

The use cases presented in this White Paper are not exhaustive and other use cases may exist. This White Paper does not describe the practical implementation of any specific use case, and such implementations may vary by 3DS Programme.

This White Paper accompanies and complements the EMV 3DS Specification and supporting documentation. Where additional relevant information on a given subject is available in any of these documents, references to specific sections in the documents are provided to avoid duplication.

For certain features, the White Paper highlights the differences that may exist between the different specification versions active at the time of release of this White Paper.

The contents of this dynamic version of the White Paper correspond to the contents of the PDF version of the White Paper, published in April 2024.