Implementing Authentication and User Session Management

Every modern web application needs a secure way to identify users and keep them logged in safely. Understanding how to handle credentials, tokens, and active sessions is the cornerstone of web security. In this text-based course, you will transition from the absolute basics of user identification to implementing robust authentication systems. You will read about how to protect user data, manage active sessions, and prevent common security vulnerabilities. What you'll learn: Learn core security terminology and foundational authentication concepts; Implement secure password storage using modern hashing algorithms like bcrypt; Manage user sessions securely using both cookie-based and token-based strategies; Protect applications against session hijacking, fixation, and cross-site scripting; Apply modern security patterns including token-based authentication and multi-factor concepts; Practice security principles through written scenarios, code-based walkthroughs, and conceptual exercises. You will start with foundational definitions of authentication versus authorization, progress through stateful and stateless session models, and conclude with modern security best practices. This course is designed for beginner developers and security enthusiasts with no prior experience in authentication. Start reading today to build secure login systems with confidence.