Special Lecture on Information Security and Personal Information Protection

You can now enjoy more freedom in cyberspace than ever before.

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 the preliminary challenges of the hacking competition DIMICTF (2019).

While tackling Nebula, a wargame designed to develop system hacking skills, I have included a complete translation and solutions for all challenges, including the setup of the practice environment from start to finish. Additionally, you can acquire the computer science knowledge required for each challenge.

Covering the content of WebGoat, a classic web hacking wargame, this resource includes full translations and solutions for every lesson and challenge from start to finish. It provides everything from setting up the practice environment to the tools and data required to solve the challenges.

If you have ever felt attracted to someone typing mysterious Linux commands on a black screen but felt lost on where or how to start, this course can help you.

You can now enjoy more freedom in cyberspace than ever before.

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

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.

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

This is a theoretical/practical training course to prepare for the certification exam for those who dream of becoming an ISMS-P certified auditor.

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

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

Do you need career planning for information security? Are you unsure of what to do to become an information security expert? We will inform you about the present and future of the information security field.

Do you want to get a job in the information security field? You are planning to get a job but don't know what to do? Real Voice from a security professional, we will lead you to the best employee after the interview/entry.

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

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

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

This course systematically organizes the core fundamental concepts that new MCU SW development employees must know to perform cybersecurity tasks. Even those with no prior knowledge can grasp the basic background and general overview of cybersecurity. It will be helpful for understanding the work not only for those in SW development roles but also for new employees in evaluation or quality assurance roles.

IT services are rapidly transitioning to cloud environments. You will learn security practices from basic virtual infrastructure construction to security threat monitoring and vulnerability diagnosis for each area to secure the Amazon AWS cloud environment.

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.

As AI systems become agentic and expand beyond text into image, audio, and multimodal capabilities, security threats are becoming significantly more complex. This lecture analyzes the latest security threats and attack techniques faced by AI Agents and Multimodal LLMs, as well as real-world cases, from an AI Red Teaming perspective.

This lecture provides a general guide on how to prepare while studying when you want to choose a career in IT security penetration testing, and what questions and answers to prepare for the interview. I will share my experience working as a penetration testing consultant, at large companies, and in the financial sector, and currently running a penetration testing consulting business.

This course is a foundational learning program that covers Introduction to Information and Communication Technology, one of the core theories in computer engineering. Through this course, learners can understand the basic structure and operating principles of computers, and learn the principles and applications of information and communication technology based on this foundation. It is structured to provide comprehensive learning from the processes of information generation, transmission, processing, and storage to data communication methods in network and internet environments. In addition, by understanding the basic concepts of information and communication technology along with the trends and roles of information and communication technology utilized in real life and industry as a whole, it provides a solid theoretical foundation for learners who are first entering the fields of computer engineering and information and communication technology. 👉 By taking this course, learners can build a fundamental foundation in information and communication technology that encompasses computers and networks, and furthermore, utilize it for advanced learning or preparation for related certifications.

Learn the basic concepts of Spring Security OAuth2, API usage, and internal architecture. In addition, you will learn how to integrate and link OAuth2 Client, OAuth2 Resource Server, and Authorization Server, build your own authorization server, and implement OAuth2 services through it.

Understand the operating principles and structure of Spring Security and learn how to set up authentication and authorization features required for web applications by utilizing the various functions provided by Spring Security.