3DS: What We’ve Learned Implementing 3DS with Merchants
Blog post from Basis Theory
3D Secure is an important payment-authentication tool for reducing fraud, but implementing it can be difficult because payment service providers often hide critical technical details behind proprietary abstractions. The transition from 3DSv1’s cumbersome redirect and password experiences to 3DSv2’s more data-intensive, potentially frictionless authentication has increased the need for accurate merchant, customer, and transaction data, while inconsistent provider documentation and custom implementations can complicate integrations or provider changes. Responsibility is shared among merchants, PSPs or acquirers, issuers, and card networks, yet unclear ownership and limited access to data can make troubleshooting and optimization difficult. The author argues that successful 3DS deployment is primarily a setup and data-management challenge rather than a simple technical integration, and promotes an agnostic approach that gives merchants greater control over tokenized card data, security, compliance, documentation, and their choice of payment providers.
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