Special Lecture on Information Security and Personal Information Protection

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.

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

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.

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

This is an introductory course designed so that even people encountering information security and personal data protection for the first time can understand the overall flow within an hour. From security concepts to practical methods in daily life, and even the core content of Korea's Personal Information Protection Act (PIPA), only the essential parts are organized in an easy and simple way. Even without security knowledge, after listening, you'll naturally acquire the basics of safely handling personal information in daily life and work.

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.

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

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.

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.

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

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.

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

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.

Master AWS networking completely! Learn VPC, subnet, routing, and security with a focus on practical application, and design secure and scalable cloud network architectures. Complete the core skills that every working engineer must know in a short period of time!

This was produced by faithfully reflecting the latest 2026 legislative amendments and recent exam trends. I will explain everything in the easiest way possible so that even those with no prior knowledge of personal information can understand. If you follow along until the end, you will surely pass. Please trust me and join us!

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.

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.

KCA Information Security Risk Manager (ISRM) certification course! The cornerstone for acquiring the top 3 personal information protection certifications: CPPG, ISMS-P!

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.

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.

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

Learn about networks easily, quickly, and engagingly with pictures and videos!