Cybersecurity Fundamentals for Developers

About this course

Most developers learn security from a post-mortem. We flip that. We hand you a deliberately broken web app and walk through it like an attacker — SQL injection, XSS, broken access control, JWT mistakes, secret leakage, IDOR. Then we fix every issue together using the patterns that actually hold up in production. By the end you can read a security report, prioritize what matters, and ship features that don't end up in a breach disclosure.

What you'll cover

• 1

  The attacker's mindset (in 90 minutes)

  How real attacks find their way in. The vulnerabilities that pay rent in bug bounties.

• 2

  Injection: SQL, NoSQL, command, template

  Break a deliberately vulnerable app. Then fix it with parameterized queries, ORMs, and proper escaping.

• 3

  Auth, sessions, and JWT done right

  Why your bcrypt rounds matter. Refresh tokens. The JWT mistakes everyone makes.

• 4

  Access control: BOLA, IDOR, and broken authorization

  The #1 OWASP issue. Patterns to enforce authorization everywhere — without checking it everywhere.

• 5

  Secrets, env vars, and the supply chain

  Why the .env in git is the breach you'll get. Vaults, rotation, and dependency scanning.

• 6

  XSS and the modern frontend

  Even with React, you can ship XSS. dangerouslySetInnerHTML, CSP, and what frameworks miss.

• 7

  Threat modeling for small teams

  STRIDE in 30 minutes per feature. Lightweight enough to actually do, structured enough to find real issues.

Skills you'll build

• OWASP Top 10
• SQL injection
• XSS
• JWT
• BOLA
• secrets management
• threat modeling
• secure coding