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The cardholder says they never authorized this online or phone order.
Someone used stolen card details to place an order the real cardholder never authorized.
The core online-fraud code for Discover — AVS/CVV match and delivery verification are the main defense.
AVS/CVV match results, device/IP data, and delivery confirmation to a verified address.
Submit AVS/CVV match proof, device/IP consistency, and delivery confirmation to the cardholder's known address.
Not enforcing AVS/CVV match or shipping to an unverified address without review.
Enforce AVS/CVV matching and flag address mismatches for manual review.
Flat monthly fee, keep 100% of what you win.
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