Fraud Detection & Transaction Risk
S

Signifyd

Signifyd sells commerce protection for ecommerce under a financial guarantee, and it sells to two buyer types rather than one. The Commerce Protection Platform serves merchants and covers Guaranteed Fraud Protection, Complete Chargeback Protection, Account Protection, Authorization Rate Optimization built on issuer integrations, Chargeback Recovery, Return Insights and Instant Refunds. A separate Payments Optimization Platform is sold to payment providers.

The guarantee is configurable rather than fixed, running from fraud only cover to a total chargeback liability shift, and the company draws an explicit distinction between that and a performance service level guarantee, arguing an approval rate promise carries no incentive to exceed the target. Decisions are made from session data covering internet protocol address, behavior and transaction detail, with a machine learning contextual layer drawing on forensic data and more than 150 out of band identity sources, and the company states it recognizes over 98 percent of online shoppers through its merchant network.

Two mechanisms sit around the automation: Expert Re-review, under which a declined order can be resubmitted with further information for review by a certified fraud analyst, and a published commitment to supply the data behind a decision. Assurance is documented rather than asserted, with an annual SOC 2 Type II available under non disclosure, a SOC 3 report downloadable without one, ISO 27001, PCI DSS Level 1 and PCI 3DS. Named privacy regimes include GDPR, CCPA, Brazil's LGPD and Mexico's federal data protection law, with a public data subject access request form. The company reports more than 6,000 brands and has been ranked first in the Digital Commerce 360 Leading Vendors to the Top 1000 Retailers report for five consecutive years.

Last VerifiedAugust 24, 2026
Compare Signifyd with other vendors
Founded
2011
Headquarters
San Jose, California, United States
Categories
fraud-and-transaction-risk, payments-intelligence
Assessment

Capability Axes

Capability grades

15 of 15 axes rated · 9 graded A or B

AI Capability
AI Centrality
AA on AI CentralityThe artificial intelligence is the product. Remove the models and there is nothing left to sell.
Vendor Published

Decisions run through a machine learning layer over session data, forensic signals and outside identity sources, and the network claims to recognize more than 98 percent of online shoppers. A chargeback guarantee resting on those decisions could not be underwritten on a rules engine, so removing the models removes the product.

Autonomy and Oversight Model
BB on Autonomy and Oversight ModelA written commitment that the models work alongside human judgment, with real review surfaces, short of the full control structure: commonly the threshold at which the system stops or what happens after it is wrong.
Vendor Published

Order processing is fully automated and fulfillment fires directly from the decision, yet a published expert review path lets a declined order be resubmitted with more information for a certified fraud analyst. No threshold, turnaround or reviewer authority is specified for that path.

Model Risk Management and Transparency
CC on Model Risk Management and TransparencyTransparency is claimed in general terms with no mechanism a model validator could interrogate.
Vendor Published

The pipeline's shape is described openly, from session signals to the contextual layer, so a reviewer can see where a signal enters. Merchant approval and chargeback figures are outcomes rather than model measures, and no validation report, precision or recall figure is published.

Operational and Outcome Evidence
AA on Operational and Outcome EvidenceNamed customers with hard performance figures and enough method to test them.
Vendor Published

Hot Topic is credited with a $10 million revenue uplift, Cymbiotika with 93 percent fewer chargebacks and Ferguson Home with a 98.5 percent approval rate and zero fraud losses. Digital Commerce 360 has ranked it first among vendors to large retailers for five straight years, though as a private company it publishes no audited financials.

AI Safety and Data Stewardship
CC on AI Safety and Data StewardshipGeneral assurances that do not answer the question this axis asks, which is whether one customer’s data trains models serving its competitors. Unbounded cross client learning stated with no boundary grades here too.
Vendor Published

A shopper's conduct at one retailer shapes whether a competing retailer approves them, and a merchant's own data improves decisions for its rivals. Opting out of the network, walls between merchants and how long shopper profiles persist are not described.

Regulatory and Compliance
GLBA and Data Privacy Posture
BB on GLBA and Data Privacy PostureA substantive privacy document that reaches the product itself, short of the subprocessor list or the full data handling detail.
Vendor Published

GDPR, California, Brazilian and Mexican privacy law are named, which matters for merchants selling into Latin America, and a public request form at signifyd.com/dsar lets a consumer ask what is held. A data processing addendum, subprocessor list and retention schedule are absent.

Security Certifications and Trust Center
AA on Security Certifications and Trust CenterCertifications named with their type and presented as retrievable artifacts, usually through a trust portal a buyer can open without asking.
Vendor Published

A SOC 3 report is downloadable without any agreement, alongside SOC 2 Type II under a nondisclosure agreement, ISO 27001:2022 and PCI DSS Level 1. The auditing firm is unnamed and no trust portal or penetration test summary is offered.

Regulatory Status and Licensure
CC on Regulatory Status and LicensureThe regulatory position is unstated. Most vendors in this index are technology suppliers and being unlicensed is the correct posture, so this grade records silence about the posture, not a missing license.
Vendor Published

Issuer integrations put the product inside card scheme rules without conferring regulated status, and no regulator appears as a counterparty. Signifyd is privately held, holds no financial license and files with no securities regulator.

AI Governance and Bias Disclosure
CC on AI Governance and Bias DisclosureResponsible artificial intelligence committed to in policy language with no evaluation behind it, on a product whose bias surface is modest.
Vendor Published

Machine learning should not leave a buyer in the dark, the company says, but no error rate, false positive rate or fairness testing is published. Shoppers the network does not recognize absorb the friction, and nothing describes who they are.

AI Liability and Recourse
BB on AI Liability and RecourseA published falsifiable commitment such as an accuracy figure with its method, or a real correction route for the affected person, such as step up verification instead of silent denial.
Vendor Published

Chargeback cover is configurable from fraud only to a full liability shift, and fraud declines cost the merchant nothing, so false negatives fall on the vendor. Approval rate guarantees are argued against openly, but no indemnity covers a wrongly declined order and the shopper is not told why.

Integration and Deployment
Model Supply Chain Disclosure
CC on Model Supply Chain DisclosureThe architecture is described and no provider is named.
Vendor Published

More than 150 outside identity sources feed the machine learning layer, and not one is named. No subprocessor list, cloud provider or model provider is identified, so concentration on a single data broker cannot be ruled out.

Core Systems and Integration Depth
AA on Core Systems and Integration DepthNamed integrations with the systems of record, core banking, policy administration, custodial or contact center platforms, verifiable in marketplace listings or public API documentation.
Vendor Published

Order connectors cover Shopify, BigCommerce and Salesforce Commerce Cloud among others, and payment connectors pull chargebacks from Adyen, Stripe and PayPal so the guarantee reconciles against the acquirer. REST APIs, webhooks and SDKs are documented at docs.signifyd.com, and Accertify, a direct competitor, appears in the connector list.

Deployment Model and Data Residency
CC on Deployment Model and Data ResidencyCloud only with nothing stated, which is the category norm.
Vendor Published

A public status page at status.signifyd.com shows availability, but no hosting provider, region or transfer mechanism is named. Brazilian and Mexican privacy law turn on where processing happens, so naming those regimes without a location leaves merchants unable to assess.

Commercial
Commercial Transparency
BB on Commercial TransparencyA published plan ladder, billing dimensions, or a stated commitment such as no fees, so a buyer can size the cost before making contact.
Vendor Published

Charges are a percentage of the order total, taken only on approved orders, with the rate set by vertical, volume and average ticket. The rate itself is never published, though the vendor commits not to win business with a teaser rate that rises later.

Institution and Segment Coverage
BB on Institution and Segment CoverageNamed segments with dedicated material behind part of the coverage.
Vendor Published

Merchants buy the Commerce Protection Platform, payment providers the Payments Optimization Platform, and issuers are reached through authorization rate work. More than 6,000 brands span fashion, electronics and grocery, but the center stays ecommerce, with no banking operations, insurance or capital markets line.

Head to Head

Compared With

Most editorial comparisons pair two vendors the index assesses as direct competitors for the same buyer. Some pair vendors that are adjacent rather than rival, where the useful question is where one ends and the other begins. Each carries a verdict, the buyer conditions that favor each vendor, and a graded side by side.

Alternatives to Signifyd

Vendors in the same categories as Signifyd whose profiles look most alike, each with a line on what the product does. Similar is not the same: check that each one does the job you need. No vendor pays for placement.

Coris supplies merchant risk infrastructure to the parties that underwrite merchants rather than to merchants themselves, covering software platforms with embedded payments, independent…

NoFraud sells full service ecommerce fraud screening to small and mid sized merchants, with a Shopify centered distribution model and commercial terms a merchant can test without paying.

Incognia answers the identity question with geography.

Accertify is an enterprise fraud prevention and payments company based in Itasca, Illinois, and led by president Mark Michelon.

ClearSale is an ecommerce fraud prevention business founded in Brazil around 2001.

Fingerprint sells device identification as a developer primitive rather than as a fraud decision.

The index publishes no overall score or ranking. See what we assess and the methodology.

Commercial

Pricing

Vendor-published figures are labeled as such. Figures labeled “Estimated” are derived from third-party sources and have not been confirmed by the vendor.

Entry Price Pricing Basis Data Protection Terms Implementation Source
Not published. Charged as a percentage of order total on approved orders only, with no charge when an order is declined due to fraud. The percentage is quoted per merchant and no figure, floor or minimum appears.
$0 baseline
A percentage of order total charged only on approved orders, with declined fraud orders free. The company publishes the variables that set that percentage: the specific products purchased, the merchant vertical, order volume and average ticket price. It also publishes the quoting method, an assessment of the merchant's current operating effort, chargeback losses and order declines, worked against agreed approval rate targets. The structure makes the vendor the residual risk holder for its own decisions, because under Guaranteed Fraud Protection the chargeback liability shifts from merchant to Signifyd, and that is why no rate card can exist: each rate is an underwriting decision against that merchant's loss profile. Cover itself is configurable along a spectrum from fraud only chargebacks to a total chargeback liability shift, so the same merchant can buy different amounts of risk transfer at different rates. Additional products around the core guarantee, covering account protection, authorization rate optimization, chargeback recovery, return insights and instant refunds, are packaged separately and none carries a published price. No data processing addendum or subprocessor list is published. What is published instead is a compliance surface naming four regimes: GDPR, the California Consumer Privacy Act (CCPA), Brazil's LGPD and Mexico's federal law on protection of personal data held by private parties. A separate California privacy notice sits alongside them, with a public data subject access request form at signifyd.com/dsar that a consumer can use directly. The security terms are better evidenced than the data protection terms. A SOC 3 report is downloadable without a non disclosure agreement and a SOC 2 Type II is available under one, with ISO 27001, PCI DSS Level 1 and PCI 3DS also held. A merchant therefore gets assurance evidence before contact and processing terms only after it. Not published and not disclaimed. No setup, onboarding, integration or migration fee appears anywhere. Integration effort is low for most merchants. Prebuilt connectors ship for Miva, BigCommerce, Adobe Commerce, Salesforce Commerce Cloud, Shopify, NetSuite, Accertify and VTEX. Payment connectors pull chargeback data automatically from Adyen, Stripe, PayPal, Square and Worldpay, and public API documentation supports a custom build. The company markets quickest time to value as a differentiator and publishes material on how to assess it, but attaches no figure, timeline commitment or professional services rate to any of it. Dedicated support is described as 24 hour online coverage from a customer success team, with no tiering or fee stated. Expert Re-review of declined orders by a certified fraud analyst is presented as included rather than chargeable. Vendor Published

The commercial model is disclosed in detail and still stops one step short of a number. The pricing page publishes the unit of sale, the four variables that set the rate and the assessment method used to quote, all without any contact. It also states that declined fraud orders are free and that the guarantee is configurable from fraud only to total chargeback liability shift. It adds an explicit undertaking not to use a low introductory rate that rises later.

The company also argues publicly why its guarantee structure is preferable to a performance service level guarantee, a competitive argument a buyer can test independently. None of that yields a percentage, and the company states plainly that the percentage varies by product mix, vertical, order volume and average ticket price. A third party listing that quotes a Signifyd percentage is not a published rate.

The rate is an underwriting output rather than a list price, since the vendor is pricing its own expected chargeback losses for that specific merchant. No single figure could be true across merchants, and a quoted one would mislead.

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AI FinTech Index

The AI FinTech Index is an independent index that tracks changes to AI vendors in financial services. It holds 610 vendors across banking, lending, insurance, wealth, capital markets and financial crime compliance, each graded on the same 15 capability axes from public sources. No vendor pays for inclusion, placement, or rating.

Index Status
Last index update
October 20, 2026
The AI FinTech Index is an editorial reference, not a regulatory body. Vendor data is verified against published sources and public regulatory filings. Figures labeled “Estimated” have not been confirmed by the vendor. See the Methodology page for evaluation standards and limitations.
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