Docker Masters! From CI/CD to DevSecOps Automation Security Practice!

This is an intermediate course where you'll design AWS infrastructure as code using Terraform, and practice automated deployment and security management. Through practical examples and hands-on exercises, you can develop efficient infrastructure operations and management automation capabilities.

Learn cloud infrastructure automation technology using AWS and Terraform, and practice efficient infrastructure management and deployment. Manage AWS resources as code through Terraform, and learn how to deploy consistent infrastructure across various environments.

- Provision of penetration testing environment and assessment tools - WEB penetration testing practice according to the 2025 revised edition of Critical Information and Communications Infrastructure - WEB penetration testing practice according to the 2025 revised edition of Electronic Financial Infrastructure - Review and sharing of vulnerabilities existing on websites - Education on penetration testing report writing methods and improvement measures

This course is an introductory information security lecture that breaks down complex cyber attack techniques in an easy and engaging way, like a movie. From traditional hacking methods to the latest attack techniques in cloud environments, everything is organized in an easy-to-understand manner based on real cases and scenarios. Even if you don't know technical terms, anyone can follow along as we actively use analogies, visual materials, and storytelling, and it's structured so that vague security concepts clearly stick in your mind. "This course is designed for those who only had a vague understanding of security to comprehend everything at once: 'hacking principles and flow → actual attack methods → response strategies.'"

The recent Coupang personal information leak has been recorded as the largest personal information breach in domestic history, marking a case where the personal information of all South Korean citizens was leaked. However, the issue of ISMS-P's effectiveness was concluded with meaningless improvement measures such as penetration testing and certification revocation, and as of December 11, 2025, Coupang and others that were subject to the Personal Information Processing Policy Evaluation System conducted by the Personal Information Protection Commission in 2024 continue to operate incorrectly in more than 10 areas of the evaluation system's standards. The reason is clearly the human factor of Coupang's personal information team, who are the best personal information experts domestically and internationally, and ISMS-P auditors, who hold the best personal information expert qualifications domestically and internationally. All of these personal information leaks, including this incident and those at G-Market, Netmarble, SKT, KT, LG U+, etc., could have been prevented with even basic common sense knowledge of the Personal Information Protection Act. However, the reality is that accidents continue to occur due to human factors, insufficient preliminary inspections, and differences in legal interpretation, resulting in customers' personal information not being protected or appropriate protective measures not being established and operated. Through this course, you can develop the ability to transparently and objectively evaluate personal information through proper personal information inspection methods and professional training to eliminate blind spots, with the hope that personal information protection for customers will be achieved.

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

This is a theoretical/practical training course to prepare for the certification exam for those who dream of becoming an ISMS-P certification auditor in 2025. It is an extended version that includes general ISMS-P and financial ISMS-P.

This is a 'Practical Linux Troubleshooting Course' where you analyze and solve problems together with generative AI, based on a Docker practice environment that reproduces 5 representative failures that occur in actual Linux operating environments. Even those who were overwhelmed about where to start examining problems can learn the problem-solving approach and thought process of field engineers through AI guidance.

Ghost In the N8N - AI Automation Workflow (AI automation flow through the N8N framework) You will gain the foundational knowledge needed for practical work & business automation in the AI era, along with guides you can use immediately in real-world applications!

This is an online course where you can learn essential content for certification, from basic concepts of information security to the latest security issues. With theory reflecting the latest exam trends and practical mock tests, you can efficiently prepare for the exam, and it's structured so that even those new to information security can easily follow along.

Let's create a dashboard by visualizing various data.

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.

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

Nationally Certified Industrial Security Manager: "Final update of the newly renewed version is complete"!! The 2026 exam schedule is expected to be announced between February and March on the following site (https://license.kaits.or.kr/license/web/board/brdList.do?menu_cd=000021). This course is designed to help you obtain the Nationally Certified Industrial Security Manager certification by providing a systematic understanding of industrial security from a management perspective. Rather than focusing on rote memorization, the content systematically organizes the concepts, structures, and flows of industrial security so that even non-security majors can understand it, preparing you for the exam while also supporting practical work and career expansion.

Understand the basic knowledge required to build a virtual environment, create a virtual environment suitable for your environment using tools called Vagrant + VirtualBox, and build a Docker and Kubernetes Cluster. You can also introduce and practice virtualization SW suitable for macOS environments using Apple silicon chips.

Incident response is less about mastering tools and more about knowing what to judge first. Rather than focusing on how to analyze malware, this course explains the realistic thought process of determining **"whether the current situation is an actual incident and what actions to take first."** Using webtoon-based real-world scenarios, we have organized the entire flow of incident response—from identifying signs of intrusion to incident assessment, initial response, containment, and analysis/forensics—in a way that even non-experts can understand. This is not just a collection of fragmented technical explanations; it is a course where you learn the decision-making criteria and response perspectives that practitioners can apply immediately in the field.

Mastering Threat Mitigation, Custom Rules, and API Protection for Modern DevOps Pipelines

The lecture focuses on how to use Docker in Swarm mode. It guides beginners to easily build and operate servers.