Skip to content


Answers to the most common questions about the Signifyd platform.

How does Signifyd make a Guarantee decision?

Signifyd approves and guarantees orders that may otherwise be declined. This Guarantees Payments to merchants in the event of fraud on all approved transactions. Merchants only pay Signifyd when a transaction is approved. So we make money only when you make money!

Signifyd makes guarantee decisions with two goals in mind:

  • Maximize your revenue
  • Keep chargebacks low so that your processor does not shut you down

To accomplish these goals (i.e. make a guarantee decision), Signifyd builds robust and scalable enterprise systems and processes. These systems use data from a combination of sources such as device fingerprints, ip-geo location, proxies, social graph, network of thousands of sellers, issuing banks, cross-merchant blacklists, velocity, search engines and public records. These data sources produce thousands of signals that help Signifyd determine if a transaction is good or bad.

Interested in knowing more? Visit our Revenue Protection page.

Have more questions? Contact us via our support portal.