

Add an extra layer of protection for card payments with 3D Secure. Customers authenticate with their bank before completing the charge.
Online card payments can sometimes fail due to fraud checks, regional banking rules, or suspicious activity that requires extra verification.
3D Secure (3DS) adds an authentication step where customers confirm their identity through their bank before the payment is approved.
Without additional verification, unauthorized transactions are more likely to succeed, increasing fraud risk and potential chargebacks.
This guide will walk you through how 3DS works so you can understand the customer experience and improve payment security across your checkout flows.
To begin, review what 3D Secure does and why some payments require additional authentication.
3D Secure (3DS) adds an extra identity verification step during card payments. Customers confirm their identity through their bank (for example, a one-time passcode or approval in a banking app) before the payment completes.
Good to know: Card networks often brand 3DS as Visa Secure or Mastercard Identity Check. In many European transactions, Strong Customer Authentication (SCA) commonly requires 3DS.
The issuing bank decides whether authentication is needed. If it is, customers complete a quick verification step and return to finish checkout.
Desktop vs. mobile: Desktop authentication may open in a new frame/window. On iOS or Android, authentication may occur in the bank’s app or a mobile browser before returning to checkout.
Example: If you see frequent authentication failures on mobile, review your checkout messaging so customers expect an approval step in their bank app.
3DS helps protect card payments with an extra verification step—especially important in regions where SCA applies.
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3DS adds an extra verification step for card payments. Cardholders confirm identity (OTP, bank app approval, etc.) before the transaction completes.
It reduces unauthorized payments by requiring additional cardholder authentication before a payment is completed.
Requirements vary by region and provider. Under Europe’s Strong Customer Authentication (SCA), 3DS is commonly required for card payments.
Most modern gateways support 3DS. Confirm compatibility and configuration with your payment service provider.
In some test or verification scenarios, a pending amount may automatically refund within 24 hours, depending on your processor and settings.
3D Secure helps banks verify legitimate buyers before processing a charge—reducing fraud while keeping checkout smooth on desktop and mobile.
Stronger verification. Fewer chargebacks.
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