3-D Secure (3DS)
Card & payment fraud3-D Secure is an extra identity check on online card payments, where the shopper proves it is really them by approving the purchase in their banking app or typing in a one-time code. It cuts card-not-present fraud from stolen card numbers, and when a payment is authenticated this way, the chargeback liability usually shifts from the merchant to the card's issuer.
The catch is friction: every added step makes some real customers give up and abandon checkout, so teams set 3DS to challenge risky payments and wave low-risk ones straight through. Fraudsters still try to beat it by tricking victims into reading out the one-time code in real time, so a passed 3DS check is strong evidence the buyer is genuine, not proof.

