Stripe’s automated fraud prevention toolset, Radar, blocks any payments that we identify as being high-risk. Radar can help you most effectively combat fraud, with features such as rules that block payments if the CVC or ZIP code doesn’t match the information on file with your guest’s card issuer.
If Stripe Radar ever blocks a payment you know is legitimate, you can remove the block using the Dasbhoard in Stripe. To do this, view the payment in the Dashboard and click the Mark as safe button. Marking a payment as safe doesn’t retry the payment, but it does prevent Stripe Radar from blocking future payment attempts with that card or email address.