Stripe Radar can help prevent payment approval if the CVV verification fails. You can configure fraud prevention rules from your Stripe account.

Block Mastercard debit and Visa debit cards using Radar

You can block transactions from Mastercard debit and/or Visa debit cards by creating custom block rules in Stripe Radar.

From the Rules section of your Radar dashboard follow these steps:

1. Scroll down to the When should a payment be blocked? section.
2. Click + Add rule.

1. Add the block rules depending on the card type, brand, country, or transaction type you want to block (see supported attributes). In example 1, the specified rules will block Mastercard debit cards from Canada for sale-type transactions, while in example 2, the specified rules will block Visa debit cards from the US for auth-type transactions.

Example 1

Mastercard debit cards:

Block if :card_funding: = 'debit' and

:card_brand: = 'mc' and

:card_country: = 'CA' and

::transaction_type:: = 'sale'

Example 2