Best Fraud Detection of 2026

Stripe Radar is the Stripe-bundled fraud detection platform for SaaS already running Stripe payments whose evaluation does not justify standing up a separate fraud vendor. Launched 2016 by Stripe Inc., Radar built around the thesis that platforms already on Stripe should get fraud blocking as a free baseline, with paid upgrade tiers for teams who need custom rules and manual review; the platform reuses the Stripe Connect onboarding and dashboard.

Two tiers. Stripe Standard is free with Stripe payments and ML-based fraud blocking on the native Stripe integration. Radar for Fraud Teams charges per screened transaction with custom rules, manual review queue, and risk dashboards.

What sets it apart is the bundle inside the Stripe stack plus the per-screened-transaction pricing. Where Sift, Forter, Signifyd, and Sardine require custom-quoted enterprise contracts and SEON ships a published Starter tier, Stripe Radar gives Stripe-payments customers ML fraud blocking at no extra charge as the baseline; for Stripe-payments-native platforms, this eliminates a vendor relationship entirely on the basic tier. The catch is the platform requires Stripe payments (not portable to non-Stripe stacks) and the fraud coverage focuses on payment fraud (no native ATO or content abuse), so multi-event-type teams need a broader vendor.

SEON is the affordable EU mid-market fraud detection platform for SaaS and ecommerce teams whose evaluation centers on published-tier pricing plus EU jurisdiction. Founded 2017 in Budapest, SEON built around the thesis that fraud detection should ship like a SaaS subscription with published pricing rather than enterprise-only custom-quoted contracts.

Four tiers. Free covers 100 API calls per month with email, IP, and device intelligence. Starter is the published mid tier with 5K API calls plus custom rules and Stripe, Shopify, Magento integrations. Premium is custom-quoted at the scale tier with advanced ML and CRM integrations. Enterprise is custom contract with multi-region, dedicated CSM, SSO, and audit.

What sets it apart is the published-tier pricing plus EU jurisdiction. Where Sift, Forter, Signifyd, and Sardine custom-quote the entry monthly tier and Stripe Radar requires Stripe payments, SEON lets you sign up at the Starter tier without a sales-cycle quote and ships from a Hungarian EU base with native GDPR posture; for European SaaS or ecommerce wanting EU data residency without enterprise procurement, SEON collapses the timeline. The catch is the per-API-call ceiling on Starter limits volume.

Sift is the mainstream ML-based fraud detection platform for SaaS, ecommerce, and fintech teams whose evaluation centers on the broadest reference base plus the widest fraud-event coverage. Founded 2011 in San Francisco, Sift built around the thesis that fraud detection should ship as one platform covering payment fraud, account takeover, and content abuse rather than separate vendors per fraud type.

Three tiers. Standard is custom-quoted at the entry monthly tier with payment fraud, ATO, and content abuse on Stripe, Adyen, and Braintree. Pro is custom-quoted at the scale tier with custom rules, Decision Center, and CRM integrations. Enterprise is custom contract with multi-region, dedicated CSM, SSO, and audit.

What sets it apart is the breadth of fraud-event coverage plus reference-base depth. Where Stripe Radar covers payment fraud only, Forter and Signifyd focus on commerce chargebacks, and SEON targets the EU mid-market, Sift covers all three event types in one platform with reference customers across Airbnb, Twitter, and Wayfair; for SaaS that needs to score signups, transactions, and user-generated content with one vendor, Sift fits the brief. The catch is the entry monthly minimum is the highest of broad-coverage options here.

Signifyd is the ecommerce commerce-protection platform for merchants whose evaluation centers on full chargeback guarantee on approved transactions rather than fraud scoring alone. Founded 2011 in San Jose, Signifyd built around the thesis that ecommerce merchants should not just get a fraud score but also get a financial guarantee that approved transactions will not chargeback; if a guaranteed transaction chargebacks, Signifyd reimburses the merchant.

Three tiers. Commerce Protection is custom-quoted at the entry monthly tier with full chargeback guarantee for Shopify, Magento, and BigCommerce. Premium is custom-quoted at the scale tier with custom rules and abuse prevention. Enterprise is custom contract with multi-channel, dedicated CSM, SSO, and audit.

What sets it apart is the chargeback guarantee economics. Where Sift, Stripe Radar, and SEON ship fraud scores you act on yourself, Signifyd takes the chargeback risk off your books for approved transactions; for ecommerce merchants where chargebacks are measurable cost of revenue, the guarantee shifts the risk to Signifyd's books. The catch is the guarantee fee only pays off above material chargeback volume because the fee compounds with rejected legitimate orders that would have converted under a less conservative model.

Forter is the chargeback guarantee enterprise platform for ecommerce and marketplace organizations whose evaluation centers on enterprise-grade chargeback guarantee plus identity protection at scale. Founded 2013 in Tel Aviv and New York, Forter built around the thesis that enterprise commerce should ship a chargeback guarantee that scales to multi-channel multi-region operations rather than the SMB-focused guarantee plays Signifyd ships.

Three tiers. Standard is custom-quoted at the entry monthly tier with real-time fraud, chargeback guarantee, and Shopify, Magento, Salesforce integrations. Pro is custom-quoted at the scale tier with custom rules, identity protection, and reports. Enterprise is custom contract with multi-channel, dedicated CSM, SSO, audit, and SLAs.

What sets it apart is the enterprise-scale chargeback guarantee plus the multi-channel coverage. Where Signifyd ships SMB-and-mid commerce protection and Sift covers fraud scoring across multi-event types, Forter scales the guarantee model to enterprise multi-channel operations (web plus mobile plus marketplace plus call center) with dedicated CSM relationships; for enterprise commerce where the guarantee economics work at multi-billion GMV scale, Forter is the natural choice. The catch is the entry monthly minimum is among the highest in this lineup.

Sardine is the unified KYC plus AML plus fraud detection platform for fintechs whose evaluation centers on consolidating identity verification, sanctions screening, and fraud decisioning under one vendor. Founded 2020 in San Francisco, Sardine built around the thesis that fintechs should not stand up separate KYC, AML, and fraud vendors when one platform can cover all three with shared device and risk signals.

Three tiers. Starter is custom-quoted at the entry monthly tier with fraud plus AML plus KYC unified on Plaid, Stripe, and Adyen. Growth is custom-quoted at the scale tier with custom rules, sanctions screening, and CRM webhooks. Enterprise is custom contract with multi-region, dedicated infrastructure, SSO, and audit.

What sets it apart is the unified KYC-plus-AML-plus-fraud bundle. Where Sift covers fraud-only across multiple event types, Forter and Signifyd focus on commerce chargebacks, and Stripe Radar bundles only payment fraud, Sardine ships KYC and AML alongside fraud in one platform; for fintechs onboarding new customers who need identity verification, sanctions screening, and ongoing transaction risk in one vendor, Sardine is the consolidation play. The catch is for ecommerce-only use cases, the AML and KYC features are unused overhead.

Kount is the Equifax-bundled fraud detection platform for organizations whose evaluation centers on credit-bureau data integration alongside fraud scoring. Founded 2007 in Boise and acquired by Equifax in 2021 for $640 million, Kount built around the thesis that fraud decisioning should ship with credit-bureau identity data baked in rather than requiring separate vendor relationships for credit checks and fraud scoring.

Three tiers. Essentials is custom-quoted at the entry monthly tier with payment fraud, chargeback prevention, and Shopify, Magento, Adyen integrations. Pro is custom-quoted at the scale tier with custom rules, identity verification, and Salesforce CRM integration. Enterprise is custom contract with multi-region, Equifax data integration, SSO, audit, and dedicated CSM.

What sets it apart is the Equifax credit-bureau data integration plus the post-acquisition enterprise positioning. Where Sift, Forter, Signifyd, and Sardine ship fraud-only or fraud-plus-KYC platforms, Kount layers Equifax credit-bureau data into the fraud decisioning model on the Enterprise tier; for organizations where credit-bureau data is a key input to fraud decisioning (financial services, telco, lending), Kount's Equifax bundle eliminates a vendor relationship. The catch is the post-acquisition product roadmap is shaped by Equifax priorities and the brand recognition has narrowed since the 2021 deal.