Use Case

Promo Abuse Prevention

Stop serial coupon and trial abusers

The problem

Users exploit promotional offers, free trials, and discount codes by creating multiple accounts. Each new account uses a fresh email and cleared cookies.

The solution

FingerprintIQ identifies the device behind each account creation. When the same device fingerprint appears across multiple signup attempts, flag the user as a repeat abuser.

Code example

const result = await fiq.identify();
const priorSignups = await getSignupCount(result.visitorId);

if (priorSignups > 0) {
  denyPromoCode("This device has already claimed this offer");
} else {
  await applyPromoCode(code, result.visitorId);
}