Application Security Testing and Vulnerability Debugging

In a digital landscape where software vulnerabilities can lead to major security breaches, writing secure code and finding flaws early is a critical developer skill. Every application you build must be resilient against modern cyber threats. This text-only course teaches you how to think like a security professional, analyze applications for weaknesses, and systematically debug and patch security flaws. You will transition from writing basic code to developing secure, robust software. What you'll learn: * Understand foundational application security concepts, terminology, and the modern threat landscape. * Identify common software vulnerabilities, including injection attacks, broken authentication, and cross-site scripting. * Apply static and dynamic security testing techniques to analyze application code and behavior. * Debug and remediate security vulnerabilities using industry-standard patching and secure coding practices. * Integrate zero-trust principles and modern security workflows into your development lifecycle. You will start with core security definitions and threat modeling, then progress through hands-on written code reviews and debugging exercises that simulate real-world vulnerabilities. This course is designed specifically for beginner developers, QA testers, and aspiring security analysts. No prior security experience is required, though a basic understanding of any programming language is helpful. Start reading today to build safer software and advance your development career.