Shin không đi làm nữa!(1 năm sau khi Shin nghỉ việc)

You can clear all the challenges of the international hacking competition SquareCTF (2018~2019). Broaden your senses and perspectives on IT and security by experiencing various challenges!

You can clear all the challenges of the hacking competition SquareCTF (2017).

You can clear all preliminary challenges of the hacking competition DIMICTF (2019).

We will cover all the challenges in Nebula, a wargame that will help you develop your system hacking skills, from start to finish, including setting up a practice environment. You will also learn the computer science knowledge required for each challenge.

Covering the content of WebGoat, the classic wargame of web hacking, we have translated and solved all the lessons and challenges from beginning to end. We provide all the tools and data needed to solve the challenges, starting with setting up the practice environment.

You now have more freedom in cyberspace than ever before.

This is a free special lecture that can help you strengthen your information security and personal information protection capabilities.

If you've ever been fascinated by people typing in unknown Linux commands on a black screen, but were at a loss as to where to start or what to do, this course is for you.

Through the 13 speaking tips of Kang Won-guk, a former presidential speechwriter and bestselling author, you can learn how to express your thoughts maturely and authentically.

The content is composed of core competencies essential for a successful professional life, including self-leadership, interpersonal skills, metacognition, and habit change.

When you speak well, your life changes. It changes the influence of your presence in your work and relationships. Start experiencing it now!

Conversation cheat code for an intimate atmosphere! Even 1 minute of chat is enough.

Do you want to be good at speaking? Do you keep getting nervous when you present? Learn speech systematically from Heung Button, a 13-year announcer. Your life will change.

Are you losing money because of your words and getting things messed up because of your words? If you change your speaking habits, you can properly convey what you need to say and end it, and have a refreshing conversation. We will teach you how to smoothly and naturally convey difficult situations and sharp stories, so that you can have a beneficial conversation!

The most influential factor in success is 'human relationships'. Make your life happier through 'human relationship conversation skills'! You can develop 'communication skills' that are extremely useful not only for family, lovers, and friends, but also for work and social life.