Fraud Detection platforms identify, investigate, and prevent fraudulent transactions, accounts, and activities in real time or near real time — reducing direct monetary losses and satisfying financial crime compliance obligations. Core capabilities include rules engines and machine learning models for anomaly detection, payment fraud screening, account takeover prevention, identity verification, investigation case management, alert prioritization and triage, suspicious activity reporting (SAR), and integration with payment systems and banking infrastructure. The category spans enterprise financial crime platforms (NICE Actimize, SAS Fraud Management, Featurespace) and cloud-native fraud prevention tools (Sardine, Unit21, Alloy) targeting fintechs and digital-first businesses.