Industry
Promo and coupon abuse prevention for e-commerce
Online shops give away first-order discounts, welcome credits and referral rewards, and some customers take them many times. FingerPrint Checker limits each offer to one claim per device, email and household before the discount is applied.
Abuse patterns we see in this industry
- New-customer coupons used again with a new email address.
- Referral rewards paid to a customer’s own second account.
- Welcome credits farmed by scripted account creation.
- Several accounts used to dodge per-customer limits on a sale.
How FingerPrint Checker maps to them
Other claim kinds, such as a coupon, are switched on for your project on request.
- Coupon and referral abuse: one claim per device and household, and a relation check between inviter and invitee.
- New account fraud: a decision at sign-up before the welcome credit is issued.
- Multi-accounting: related accounts linked by device and household.
What it does not do
FingerPrint Checker is a device and household signal that decides whether one device may claim one thing. It is not identity verification, and it does not replace the checks your regulator or payment provider requires.
Frequently asked questions
Where do I call it in checkout?
Before you apply the discount: identify the device when the customer submits the code, send the attestation to your backend and apply the discount only on allow.
Talk to us about your use case
Tell us what you give away and how it gets abused. We answer from a real mailbox, not a bot.