Alerts are a powerful tool for real time fraud detection systems. Alerts can be used to surface things one normally wouldn’t see in real time. You can imagine using alerts to notify users of phishing attacks, fraud, or anything suspicious. Real time alerts are important for escalating and properly mitigating threats. They can even be preventative, declining fraudulent transactions (or enabling unusual, but non-fraudulent, ones) as they occur, before they escalate into full on fraud or successful attacks.