Before any technique, learn what is permitted and what is a crime.
Lessons are coming soon. We publish each one as it becomes ready.
The course has three chapters. Lessons are published as they become ready. Every lesson in this course is free.
What separates people with the same skills is permission and intent. This chapter covers the Japanese and international laws that apply once you cross that line.
Where you may practice, and how to set it up: getting permission for professional work, your own practice environment, CTFs and bug bounties.
Your responsibilities once you hold a vulnerability or sensitive data: responsible disclosure, handling information, and professional ethics as a security engineer.