What is 3D Secure?
Turkish: 3D Secure
3D Secure is an EMVCo payment security protocol where the issuing bank adds an authentication step to online card payments.
What is 3D Secure?
3D Secure is a card-payment authentication protocol used in online checkout flows. After the customer enters card details, the issuing bank or card network may ask for an additional confirmation through an SMS code, mobile banking approval, biometric prompt, or similar step.
The protocol involves three domains: the issuer, the merchant/acquirer side, and the card network. With 3D Secure 2, authentication does not always mean a visible code screen. If device data, transaction amount, customer history, and risk signals look safe, the payment can complete through a frictionless flow. Higher-risk transactions trigger a challenge.
What It Means for Merchants
3D Secure reduces stolen-card and chargeback risk, and in some cases shifts liability away from the merchant. Requiring a challenge for every payment can still increase checkout abandonment, so the right configuration balances risk, approval rate, and user experience.
When choosing a payment gateway, teams should check 3D Secure 2 support, test cards, failure codes, refund flows, and mobile compatibility. In Turkey, providers such as iyzico, PayTR, Param, and bank virtual POS integrations expose these controls differently.
Related Terms
Buy now, pay later lets shoppers receive goods immediately while paying in installments or after a delay through an alternative payment provider.
Payment GatewayA payment gateway is a system that securely processes customer payment information in e-commerce transactions, bridging the merchant and bank.
Virtual POS (Payment Gateway)A virtual POS connects an online store to a bank or payment institution so it can accept card payments securely over the internet.