🔐 Web Security in 2026: What Every Developer MUST Understand

Web security is no longer optional. If you build websites, APIs, SaaS products, or even side projects — you are responsible for protecting user data. Attackers aren’t just targeting banks anymore. They target small apps, indie projects, startups, and portfolios too. This guide breaks down the most important web security topics every developer should understand — with trusted resources to go deeper. 🚨 1. The OWASP Top 10 (Start Here First) If you only study one thing, study this. The OWASP Top 10 lists the most critical web application security risks. These include: Broken access control Cryptographic failures Injection attacks Insecure design Security misconfiguration 👉 Official OWASP Top 10: https://owasp.org/www-project-top-ten/ This is the foundation of modern web security knowledge. 💉 2. SQL Injection (Still a Massive Threat) SQL Injection happens when attackers manipulate your database queries through user input. Example of vulnerable code: const query = `SELECT * FROM users WHERE