Cybersecurity · Secure development

Secure development

Input validation posture, cryptography misuse pitfalls, deserialization hygiene, SSRF defenses.

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Lesson outline

  1. 25
    Sanitize HTML to Prevent XSS

    Learn how to sanitize HTML to prevent XSS attacks in this Secure development lesson. Understand the concept, apply it in a hands-on exercise, and connect it to next steps.

  2. 26
    Secure development — Part 014

    Placeholder slot — edit in console (secure-development-stub-014).

  3. 27
    Prevent SQL injection

    Learn how to prevent SQL injection with parameterized queries in this Secure development tutorial — hands-on steps, troubleshooting, and what to study next.

  4. 28
    Secure development — Part 015

    Placeholder slot — edit in console (secure-development-stub-015).

  5. 29
    Safe File Path Handling

    Learn safe file path handling in Python to prevent directory traversal and path injection. Step-by-step tutorial from the Secure development track.

  6. 30
    Secure development — Part 016

    Placeholder slot — edit in console (secure-development-stub-016).

  7. 31
    Avoid command injection with subprocess

    Learn to avoid command injection with subprocess in this Secure development tutorial. Step 17 covers core concepts, hands-on exercises, troubleshooting, and next steps.

  8. 32
    Secure development — Part 017

    Placeholder slot — edit in console (secure-development-stub-017).

  9. 33
    Rate Limiting in Flask

    Implement rate limiting in Flask APIs with our secure development tutorial. Learn hands-on steps, troubleshooting, and what to study next in this step-by-step lesson.

  10. 34
    Secure development — Part 018

    Placeholder slot — edit in console (secure-development-stub-018).

  11. 35
    Add JWT Authentication

    Add authentication with JWT tokens in this Secure development tutorial. Learn core concepts, hands-on implementation, and troubleshooting for secure JWT-based auth.

  12. 36
    Secure development — Part 019

    Placeholder slot — edit in console (secure-development-stub-019).

    Secure development — step-by-step tutorials

    What you will find here

    This track walks through secure development in order — each lesson is server-rendered HTML you can read without JavaScript. Follow the outline, then practice in the browser IDE when a lesson links to runnable code.

    Tutorials vs quizzes and code samples

    Tutorials teach in sequence. For quick checks use quizzes. For copy-paste snippets see code samples. For deeper reading browse articles.