Stripe Radar Fraud Protection

Stripe has a program called Radar that can be added to your Stripe account to help enhance fraud detection. A 30-day trial is usually available and depending on your Stripe rate, charges a small cost per screened transaction. More details can be obtained by reaching out to Stripe: https://stripe.com/radar/pricing

If you do add Stripe Radar and encounter any issues of repeated fraudulent card testing, we advise creating the following Radar rules on your account: https://stripe.com/guides/radar-rules-101#rules-that-help-prevent-card-testing-or-card-cashing

Particularly the first two IP-based ones. The address and CVC check should already be in place.

• Block if :total_charges_per_ip_address_hourly: > 1

• Block if :blocked_charges_per_ip_address_hourly: > 1

To do this:

1. Go to your Radar page in Stripe, then the Rules tab

2. Select create "Add New Rule", then "Add block rule..."

3. Paste in one of the above rules or use the autocomplete

4. Chose "Test Rule"

5. Stripe should then show you any recent payment attempts that would be blocked. If this looks good, keep the rule in place.

6. Do this again for the second block rule