Secure Password Storage and Recovery: Avoiding Application Antipatterns

Storing or transmitting passwords in a readable format is one of the most critical security flaws an application can have. Understanding how to handle user credentials safely is vital for any developer building modern web applications. This course teaches you how to identify common credential-handling anti-patterns and replace them with industry-standard security practices. You will learn how to design robust authentication and recovery systems that keep user data safe from exposure. What you'll learn: Understand the severe security risks associated with readable, plain-text, and weakly encrypted passwords; Learn how to implement modern, secure password hashing using algorithms like bcrypt and Argon2; Design secure password recovery workflows using short-lived, single-use reset tokens instead of sending plain-text credentials; Identify common application security anti-patterns and bad architectural habits that compromise user data; Explore foundational concepts of multi-factor authentication and zero-trust credential storage. Starting with essential security definitions, this text-based course guides you step-by-step through credential hashing, secure transmission, and safe recovery flows. You will read clear explanations and review secure code snippets designed to help you build secure authentication systems immediately. This course is designed for beginner developers, software engineers, and security enthusiasts who want to build a strong foundation in application security. No prior security experience is required. Begin reading today to build safer, more resilient applications that protect your users' most sensitive information.