Which statement best describes Stripe's Radar product?

Stripe's Radar product is best described as a machine-learning fraud evaluation and mitigation tool that automatically blocks high-risk payments. This reflects Radar's primary functionality, which is to use advanced algorithms and machine learning techniques to analyze transactions in real time. By evaluating transaction data and user behavior, Radar can identify patterns that may indicate fraudulent activity.

When a transaction is deemed high-risk, Radar has the capability to automatically decline that transaction, thereby mitigating potential losses from fraud. This automated approach allows businesses to efficiently manage risk without requiring manual intervention for every transaction. It enhances security and protects merchants from fraudulent charges while enabling legitimate transactions to proceed smoothly.

The relevance of this answer lies in its representation of both the proactive and automated nature of fraud prevention that Radar provides, distinguishing it from simpler or manual tools.