What is the effect of enabling Stripe Radar on your platform?

• A. It works automatically with default settings and requires no code
• B. It requires writing custom ML models
• C. It disables all 3D Secure checks
• D. It opens a manual review queue for all transactions

Answer: (A)

Radar is Stripe’s built-in fraud protection that automatically analyzes each transaction using machine learning and risk rules to decide what to do. When you enable it, it starts working with default settings right away, so you get protection without writing any code. The system can block high-risk payments, challenge questionable ones, or let low-risk transactions through, and you can fine-tune behavior later if you want—but you don’t have to. Radar doesn’t disable 3D Secure; it works alongside it to determine when authentication is needed. It also doesn’t put every transaction into a manual review queue; only transactions Radar flags or that you choose to review are routed for human review.