Sift vs Sardine vs Riskified 徹底比較【2026年版】AI不正検知決定版

結論:Sift / Sardine / Riskifiedは「Sift E-commerce/Marketplace/SaaS Digital Trust&Safety 34,000+企業最大シェア・Sardine Fintech/Crypto Behavioral Biometrics・Riskified E-commerce Chargeback Guarantee業界標準」で明確に使い分けます。「米$1B・34,000+企業・DoorDash/OpenTable/Twitter・年$50K-1M」でSift(Digital Trust&Safety標準)。「米$500M・300+顧客・Brex/FTX/PayPal Crypto・Behavioral Biometrics・年$50K-500K」でSardine(Fintech特化)。「NYSE:RSKD $400M・1,000+企業・Wayfair/Prada/Canada Goose・Chargeback Guarantee・年$100K-2M」でRiskified(E-commerce Chargeback)。2026年最適スタック：(A)E-commerce SMB($1M-10M GMV)=Stripe Radar+Signifyd=年$30K、Chargeback 2%→0.6%、(B)E-commerce Mid-Large($10M-1B GMV)=Riskified Chargeback Guarantee+Sift Account Takeover=年$200K、Authorization+5pt、(C)E-commerce Enterprise($1B+)=Forter+Riskified+Sift+Sardine=年$1M、(D)Fintech/Neobank=Sardine Behavioral+Unit21 AML+Alloy KYC+Socure IDV=年$300K、Onboarding 2分、(E)Crypto Exchange=Chainalysis+TRM Labs+Sardine+Unit21=年$500K、Travel Rule、(F)Tier 1 Bank=NICE Actimize+FICO Falcon+Feedzai+Quantexa=年$5-10M、(G)Mid-Bank Regional=Feedzai+Hawk:AI+ComplyAdvantage+Featurespace=年$500K、(H)Card Issuer=FICO Falcon+Featurespace+NICE Actimize=年$2M、(I)Insurance Claims=Shift Technology+SAS Fraud=年$1M、(J)Marketplace=Sift+Forter+Persona=年$500K、(K)Gaming/iGaming=Sift+Sumsub+iovation=年$300K、(L)日本=NEC Crime Suspect+J-Coin AML+eKYC Polarify/LIQUID=年$30K-1M、犯収法対応。