Modern JavaScript Security Fundamentals

Modern web applications face constant security threats, and understanding how JavaScript can be exploited is essential for any developer or security enthusiast. This course transforms your approach to web development by instilling a security-first mindset, focusing on how to protect client-side code and sensitive user data from common attacks. What you'll learn: - Understand the core principles of browser security and the Same-Origin Policy - Identify and prevent various types of Cross-Site Scripting (XSS) attacks - Implement Cross-Site Request Forgery (CSRF) protections using modern tokens and headers - Analyze the risks of JavaScript Remote Code Execution and how to secure execution environments - Configure robust Content Security Policy (CSP) headers to restrict malicious script execution - Apply modern security practices for managing authentication and sensitive data in the browser The course begins with foundational definitions of web security and the browser environment before moving into detailed written explanations of specific attack vectors and their modern defenses. This course is designed for beginners interested in web security or developers looking to write more resilient code, and no prior security experience is required. Start building your knowledge of web defense through these essential security concepts.