I'm currently working at an information security company, so I wanted to take related training, and I applied for and attended this course. I am extremely satisfied as a result. The instructor's expertise is evident throughout the lecture. The more I listened to the lecture, the more ashamed I felt about only performing superficial diagnostics until now. I didn't know what kind of attacks to perform in what environment, but through this training, I was able to clearly understand what kind of attacks to perform depending on the environment. Also, the attack process that the instructor seems to have created personally will be really helpful in practical diagnostics. There are many times when I have to perform an attack... but I just stare blankly at the parameters and don't know what to do, but if I refer to this, I think I can smoothly perform the diagnostics sequentially. Oh, and that roadmap is amazing, I printed it out. I've only watched it once, but I'm going to watch it two more times as the instructor said. Thank you, instructor.