I am currently working for an information security company, and I applied for and attended this training because I wanted to take related courses. As a result, I am extremely satisfied. The lecturer's expertise is evident throughout the lectures. The more I listened to the lectures, the more ashamed I felt about only performing superficial diagnoses. I didn't know what attacks to use in what environments, but this training clearly showed me what attacks to use depending on the environment. Also, the attack process that the instructor seems to have created himself will be really helpful in practical diagnosis. There are many times when I have to perform an attack but I blankly stare at the parameters and don't know what to do. By referring to this, I will be able to perform the diagnosis sequentially and smoothly. Oh, and that roadmap is amazing. I printed it out. I've only completed the first run-through, but as the instructor said, I'm going to do it two more times. Thank you, instructor.