Machine learning can significantly enhance the accuracy of identity checks by leveraging advanced algorithms that analyze vast amounts of data to identify patterns and anomalies. For instance, facial recognition systems powered by machine learning can improve their precision by continuously learning from new datasets, allowing them to adapt to variations in lighting, angles, and facial expressions. Additionally, machine learning models can detect fraudulent activities by analyzing user behavior and flagging discrepancies in real-time, such as changes in login patterns or unusual transaction behaviors.