Signifyd

Signifyd is a fraud prevention platform for e-commerce that uses machine learning to approve or decline orders in real time. Online retailers use it to reduce fraud and false declines, and approved orders are covered by a financial guarantee against fraud chargebacks.

Signifyd scores each order using data from its large merchant network, and covered approvals mean the retailer is reimbursed if an approved order turns out to be fraudulent. Additional tools address account takeover, policy abuse such as return fraud, and payment optimisation for 3-D Secure.

It integrates with Shopify, Adobe Commerce, Salesforce Commerce Cloud and payment gateways, and pricing is typically a share of order value. It is based in San Jose, California.