Yep. You can either write code for it or use Radar to block the charge by fingerprint (write a rule once in your Stripe dashboard to block cards on a blocklist,

Yep. You can either write code for it or use Radar to block the charge by fingerprint (write a rule once in your Stripe dashboard to block cards on a blocklist, add a fingerprint to the list when you identify an abusive customer, done). This lets you block a card without ever contaminating yourself with knowledge of its number (we expose the fingerprint in a variety of places to you, like API responses or on the charge detail page in the Dashboard). https://stripe.com/docs/radar/lists https://stripe.com/docs/radar/lists