Pyvorin for Fraud in E-commerce

Chargeback Prediction

Score orders for chargeback risk before fulfilment.

def chargeback_risk(order, history):
    risk = 0
    if order['amount'] > history['avg'] * 3:
        risk += 30
    if order['device_fingerprint'] in history['blocked_devices']:
        risk += 50
    return min(risk, 100)

Bot Detection

Behavioural heuristics and velocity checks for automated abuse.

Order Risk Scoring

Composite risk score from identity, payment, and behavioural signals.