Signifyd

Overview

Signifyd was founded by Mike Liberty and Raj Ramanand after they left PayPal, starting in a co-working space in Palo Alto; Rajesh Ramanand is co-founder and chief executive^[13]. The company is headquartered in San Jose, California, with offices in Denver, New York, Mexico City, São Paulo, Belfast, London and Budapest, and says it protects thousands of online stores in more than 100 countries^[13].

Signifyd’s distinctive model is a 100% financial guarantee against fraud and consumer abuse: when it approves an order that turns out to be fraudulent, it covers the loss^[13]. Products include Session Intelligence, Account Integrity, Purchase Optimization (authorisation rate optimisation, guaranteed fraud protection, chargeback recovery and complete chargeback protection) and Returns Assurance^[13]. Named customers include Samsung, Lenovo, Lowe’s and Walmart^[13].

The company cites Juniper Research figures showing global ecommerce fraud losses growing from $44 billion in 2024 to a forecast $107 billion in 2029^[13]. The guarantee model shifts risk to the vendor, but merchants pay for it in the fee, and the vendor decides which orders to approve.

Signifyd features

• Guaranteed fraud protection
• Complete chargeback protection
• Chargeback recovery
• Authorisation rate optimisation
• Account integrity and session intelligence
• Returns abuse protection

Signifyd pricing

Quote-based; fees cover the financial guarantee.

Signifyd strengths and limitations

Appears in

• Best Fraud Detection Software in 2026 #11

Signifyd alternatives and competitors

Alternatives to Signifyd: companies ranked in the same lists.

• Feedzai
• NICE Actimize
• SAS Institute
• FFeaturespace (Visa)
• LTLexisNexis ThreatMetrix
• BioCatch
• Sift
• SEON
• Stripe Atlas
• Sardine
• FForter