Special Lecture on Information Security and Personal Information Protection

You now have more freedom in cyberspace than ever before.

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.

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).

Episodes from the year I started from scratch to stand on my own after quitting my dream job.

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.

An introductory course on web hacking for information security beginners and web developers! Start web hacking in a fun way with this course!

This is a lecture [Certification and Practice (Security · Network), Security] prepared for beginners.

You can effectively study the contents of the Information Security Engineer practical exam questions and obtain the Information Security Engineer practical qualification.

Let's learn about information security and hacking techniques in a broad and detailed way!

You can effectively study the contents of the Information Security Engineer practical exam questions and obtain the Information Security Engineer practical qualification.

In this lecture, we aim to create a Web Scraping API server using the Naver Shopping site. We will show you how to configure a managed API server by connecting MySQL and configuring a 3-tier architecture!!

Through this lecture, you can understand the security architecture of Naver Cloud and the expected operating costs.

This course carefully selects the core systems that beginners must know in the vast field of information security. Instead of rigid theory, it's structured to help you intuitively understand system principles through clear analogies and practical examples. With this single course, you can grasp the big picture of information security systems as a whole and develop practical skills.

This course puts an end to Linux server operational vulnerabilities caused by incorrect permissions. Master file and directory permission control based on real-world industry standards.

It would be efficient to automate IT security tasks using Python, wouldn't it? This course follows hands-on practice, applying Python and web Flask development to automate tasks, idea by idea.

This lecture is about automotive ECU cyber security based on a basic understanding of cryptography.

This lecture guides you through data analysis using Python and how to apply it to the IT security field.

From the fundamentals of systems engineering to security setup, this course will guide you along the way.

Fast is dangerous, and safe is slow? Not true. Let's create a fast and safe pipeline!

You can understand the concept and technology of blockchain and conduct ISMS-P certification audits specialized for virtual asset exchanges.

Get an idea about Spring Boot Security.

This course is for those who want to develop packet analysis programs like Wireshark and various network solutions using the Npcap library.

This training will help you understand the world-famous cloud, build your own cloud environment, and strengthen your ability to use it easily.

The author of "Structure and Principles of Arm Architecture for System Software Development" will accurately grasp the core of Arm architecture (Armv8-A) and the Linux kernel interface!

You may already be familiar with OAuth 2.0, having used it for simple logins with accounts like Google or GitHub. Social login is an extension of OAuth 2.0, and its core technology is in the OAuth 2.0 authorization framework. If you understand the principles of OAuth 2.0, you can develop the ability to implement and adjust it appropriately to your needs.