Machine learning can significantly enhance fraud detection in online gambling by analyzing vast amounts of data and identifying patterns that may indicate suspicious behavior. By leveraging algorithms trained on historical transaction data, user behavior, and known fraud cases, machine learning models can detect anomalies in real-time, such as unusual betting patterns, account takeovers, or collusion among players. These models continuously learn and adapt to new tactics employed by fraudsters, allowing for more accurate risk assessments and timely interventions.