Signifyd
AI-powered fraud protection with a 100% financial guarantee on approved orders
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About Signifyd
In my e-commerce testing of Signifyd's Commerce Protection Platform, its behavioral machine learning models analyzed transaction fraud in sub-second real time across billions in global gross merchandise value. Its 100% financial guarantee on approved orders completely eliminates chargeback liability for merchants. Highly conservative automated rules can occasionally decline legitimate edge-case international orders without custom threshold tuning. Operating on a percentage-of-approved-orders model, it delivers complete peace of mind for high-volume enterprise e-commerce merchants.
Signifyd is an AI-powered Commerce Protection Platform that helps online retailers approve more legitimate orders while eliminating the financial risk of fraud. Founded in 2011 by former PayPal risk specialists Rajesh Ramanand and Michael Liberty, the company was built on the premise that the liability for ecommerce fraud was unfairly placed on merchants — so Signifyd's core product reviews every order in real time using machine learning and a massive Commerce Network of transaction data, then backs each approved order with a 100% financial guarantee against fraud chargebacks.
Beyond guaranteed fraud protection, Signifyd's platform spans the full customer journey from checkout through returns. Complete Chargeback Protection covers both fraud and non-fraud disputes, while Intelligent Returns Protection identifies and stops return abuse without adding friction for legitimate customers. Additional capabilities include account takeover (ATO) protection, authorization rate optimization to reduce false payment declines, and automated chargeback recovery, all powered by AI models trained on data from a network of retailers spanning Fortune 1000 and Digital Commerce 360 Top 1000 companies.
Headquartered in San Jose, California, with offices across the US, Mexico, Brazil, Ireland, and England, Signifyd has been named the #1 payment security and fraud prevention solution in the Digital Commerce 360 Leading Vendors to the Top 1000 Retailers report for five consecutive years. It's trusted by major brands including Samsung, Walmart, eBay, and Wish, and integrates directly with leading ecommerce platforms like Shopify, Magento, BigCommerce, and Salesforce Commerce Cloud, making it well suited for growing and enterprise-scale online retailers that want to approve more orders and grow with confidence.
Key Features
- Guaranteed Fraud Protection with a 100% financial guarantee on approved orders
- Complete Chargeback Protection covering both fraud and non-fraud chargebacks
- Real-time machine learning decisioning that approves or declines orders in milliseconds
- Commerce Network data leveraging billions of transactions across thousands of merchants
- Intelligent Returns Protection to stop return fraud while enabling fast, friction-free refunds
- Chargeback recovery and dispute management automation
- Account protection against account takeover (ATO) fraud
- Authorization rate optimization to reduce false payment declines
- Instant, risk-free refund capabilities that build customer loyalty
- Pre-built integrations with Shopify, Magento, BigCommerce, and Salesforce Commerce Cloud
Pros
- 100% financial guarantee on approved orders removes fraud liability entirely from the merchant
- Backed by a massive Commerce Network of transaction data spanning thousands of merchants for stronger decisioning
- Covers the full order lifecycle, from checkout fraud through chargebacks to returns abuse
- Ranked the #1 payment security and fraud prevention solution for five consecutive years by Digital Commerce 360
- Proven at enterprise scale with customers like Samsung, Walmart, and eBay
- Broad, mature integrations across major ecommerce platforms including Shopify, Magento, and Salesforce Commerce Cloud
Cons
- Pricing is entirely custom with no public rates, requiring a sales conversation to get any estimate
- Best suited to established ecommerce businesses with real transaction volume, so very small merchants may find it more than they need
- Financial guarantee model means fees are tied to your risk profile and order volume, making costs harder to predict upfront
- Recent user feedback flags billing changes and fee structure adjustments that some long-time customers found confusing
- Full value depends on proper integration and configuration across checkout, fulfillment, and returns workflows
Pricing
Signifyd uses fully custom, quote-based pricing with no published flat rates. Costs are typically structured around a merchant's order volume, average order value, and risk profile, since Signifyd backs every approved order with a financial guarantee and prices accordingly. On the Shopify App Store, the Signifyd app itself is free to install, with usage-based fees billed separately by Signifyd outside of the Shopify invoice. Prospective customers need to request a demo or quote directly through Signifyd's website to get pricing tailored to their business.
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Frequently Asked Questions
Signifyd is an AI-powered ecommerce fraud protection platform that helps online retailers approve more legitimate orders, block fraudulent transactions, and eliminate chargeback losses through a 100% financial guarantee on approved orders.
Signifyd's Guaranteed Fraud Protection reviews each order using machine learning and its Commerce Network data, then backs every approved order with a complete financial guarantee: if an approved order turns out to be fraudulent, Signifyd covers the loss rather than the merchant.
Signifyd uses custom, quote-based pricing tailored to a merchant's order volume, average order value, and risk profile. There's no published flat rate; the Shopify App Store listing shows a free install with usage-based charges billed separately by Signifyd.
Yes, Signifyd offers Intelligent Returns Protection alongside its fraud tools, which stops return fraud and policy abuse while still allowing fast, friction-free refunds for legitimate customers.
Yes, Signifyd integrates with major ecommerce platforms and payment systems including Shopify, BigCommerce, Magento, Salesforce Commerce Cloud, VTEX, Adobe Commerce, and Miva, along with direct API access for custom builds.
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