What you'll learn

React Server Components lets you take advantage of a unified rendering model, but that blurred client-server boundary is also where attackers look first. In this course, React 19 Security and Safety, you'll gain the ability to ship React applications that are hardened against real-world attacks and are resilient when things go wrong. First, you'll explore how to secure the client-server boundary in React Server Components — preventing sensitive logic from leaking into the browser and sanitizing data against XSS attacks. Next, you'll discover how to harden server functions for production by enforcing authorization, validating inputs with schema validation, and handling errors without exposing your internals. Finally, you'll learn how to implement error boundaries and safety nets that isolate failures, monitor runtime errors, and manage memory efficiently. When you're finished with this course, you'll have the skills and knowledge of securing React needed to confidently ship full-stack React applications that hold up under production conditions and real-world threats.