Web Application Security: OWASP Top 10, Testing & Defense

" This course contains the use of Artificial Intelligence "|| Unofficial Course ||Web applications are at the heart of modern businesses, making them one of the most valuable targets for cyberattacks. Whether you are developing, testing, securing, or managing web applications, understanding how web applications are built, how attackers exploit vulnerabilities, and how security controls protect critical assets is an essential skill in today's cybersecurity landscape.This comprehensive course is designed to provide a structured and practical understanding of web application security, covering the entire journey from fundamental web architecture to secure development and vulnerability management. You will begin by exploring how web applications communicate through the client-server model, how HTTP and HTTPS operate, the role of web servers, databases, APIs, browsers, and the Document Object Model (DOM), and how browser security mechanisms help protect users. You will also develop a strong foundation in information security principles, threat modeling, attack surface analysis, and the OWASP Top 10 framework, enabling you to understand modern web security risks from both technical and business perspectives.As the course progresses, you will gain an in-depth understanding of authentication, authorization, identity management, and secure session handling. You will learn how passwords, multi-factor authentication (MFA), federated identity, role-based and attribute-based access control, JSON Web Tokens (JWT), cookies, session management, OAuth 2.0, and Single Sign-On (SSO) contribute to building secure authentication systems while reducing identity-related vulnerabilities.The course then explores the most common and impactful web application vulnerabilities that security professionals encounter in real-world environments. You will understand how SQL Injection, Cross-Site Scripting (XSS), Cross-Site Request Forgery (CSRF), Command Injection, Server-Side Request Forgery (SSRF), XML External Entity (XXE) attacks, and security misconfigurations occur, why they are dangerous, and the security principles used to prevent and mitigate these threats. Rather than focusing solely on attack execution, the course emphasizes vulnerability mechanics, secure design principles, risk awareness, and defensive strategies that organizations use to strengthen application security.You will also discover how modern organizations integrate security throughout the software development lifecycle. The course explains the differences between Static Application Security Testing (SAST), Dynamic Application Security Testing (DAST), and Software Composition Analysis (SCA), while demonstrating how these technologies support secure software development. You will learn the principles of DevSecOps, understand how security testing is integrated into CI/CD pipelines, and explore secure coding practices, input validation strategies, business logic security, vulnerability assessment methodologies, CVSS scoring, remediation planning, and vulnerability reporting frameworks.Throughout the course, complex security concepts are explained in a clear, structured, and beginner-friendly manner while maintaining the depth expected by aspiring cybersecurity professionals. Each lesson builds upon previous concepts to help you develop a complete understanding of web application security, secure software development practices, and modern application defense strategies.By the end of this course, you will possess a solid foundation in web application security principles, understand the OWASP Top 10 and other common security risks, evaluate authentication and authorization architectures, recognize and assess common application vulnerabilities, understand secure coding and defensive development practices, and appreciate how security testing and DevSecOps contribute to building resilient web applications. These skills are valuable for anyone pursuing careers in cybersecurity, software development, application security, DevSecOps, penetration testing, quality assurance, cloud security, or IT governance, and they provide an excellent foundation for further professional growth and industry certifications.Thank you