3D Secure For more information, see our 3D Secure guide. What is 3D Secure? How does 3D Secure work? 3D Secure v1: what are the limitations of this version? 3D Secure v2: is the authentication systematic in the customer journey? 3D Secure v2: are all payment transactions concerned? 3D Secure v2 allows an exemption from strong authentication for my customers, how can I benefit from it? 3D Secure v2: what are its advantages and possibilities? How does 3D Secure v2 work until its full deployment? When will 3D Secure v1 be discontinued? How can I check the version of 3D Secure enabled for my MID? What can I do to make my merchant website compatible with 3D Secure v2? 3D Secure v2: how to increase the frictionless rate?