Block if CVC verification fails is categorized as which type of Radar rule?

• A. ML risk checks
• B. Traditional Card Check
• C. 3DS verification
• D. Card network rules

Answer: (B)

Blocking when CVC verification fails relies on a static, data-based validation of the card itself. This is a traditional card check: it uses card-present data (the CVC) to confirm the card details and issuer presence. It doesn’t depend on machine-learning risk scoring or on an authentication flow like 3DS, and it’s not a network-imposed policy. That’s why this rule falls under the traditional card checks category.