دليل هندسي: Freelance Golang & Python Programmer: Sub-25ms Real-Time Fraud Detection. ألديان فازريهادي (Aldian Fazrihady) مبرمج مستقل أول ومهندس ذكاء اصطناعي (Python, Django, FastAPI, React, Next.js, TypeScript, Golang).

Stop payment fraud and account takeovers in under 25ms by hiring senior freelance programmer Aldian Fazrihady to architect hybrid velocity rules + ML scoring engines.

def evaluate_risk_decision(ml_probability: float, velocity_1h: int, ip_asn_risk: bool) -> str:
    if ml_probability >= 0.88 or (velocity_1h > 8 and ip_asn_risk):
        return "BLOCK"
    if ml_probability >= 0.55 or velocity_1h > 4:
        return "STEP_UP_3DS_MFA"
    return "ALLOW"

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