Mainstream Linux Risk Assessment Strategy

- Policy revision for establishing cloud management systems (CSP/MSP contracts and SaaS contracts) - Vulnerability assessment for ISMS-P/ISO27001 certification or major information communication/electronic financial infrastructure response in cloud environments (public/private asset identification and vulnerability remediation) - Security operations and incident response in cloud environments - ISO27017&ISO27018 certification response

- Strengthening understanding of inspections based on Privacy Impact Assessment checklist items - Finding and improving errors in personal information flow charts - Identifying and improving personal information breach factors - Understanding Privacy Impact Assessments and finding errors - Understanding Personal Information Protection Act and finding errors

- Understanding the establishment and inspection of personal information management systems in accordance with the Personal Information Protection Act - Inspection and status assessment of personal information processing systems - Creation of personal information flow charts and flow diagrams - Identification of personal information breach factors - Publication of personal information impact assessment summaries

Conducting Windows server competency training to break the trend of new and career-transitioning security consultants focusing solely on Linux servers. Understanding the Windows OS and its relationship with servers and programs installed on the OS, such as PC, WEB, WAS, and DBMS. Understanding vulnerabilities and continuing vulnerability assessment and improvement activities.

Classification of inspection items and establishment of an inspection plan (strategy) during network inspection Establishment of inspection criteria considering the risk and difficulty of actions Inspection of network service items and strategies for utilizing server access control solutions Command-based inspection after remote network access and preparation of risk assessment reports Interviews with network personnel and application of manual inspection items

A lecture for security consultants who have experience only in Linux, DB, WEB, networks, and security equipment, but lack experience with PCs. Securing response capabilities for cases where PC inspections are replaced by security solutions or conducted via scripts. Categorizing inspection items to prepare inspection strategies and establish response strategies based on inspection experience. One of the business improvements (KPIs) to shorten inspection time and increase accuracy.

Security equipment cannot be inspected using scripts or solutions like databases. Experienced personnel must be assigned. Difficulty in recruiting, including experienced individuals, diligent diagnosticians, or freelancers. Numerous defects found during ISMS-P certification of security equipment; skill levels vary significantly depending on the inspector. Sharing inspection methods and management strategies (methodologies, etc.) for security equipment with those who need them.

Database vulnerability assessment training for the protection of critical information and communication infrastructure in the public sector. Demand for vulnerability assessments arises as a legal requirement. Characterized by the need to secure sufficient assessment time and budget, particularly in the public sector. Lack of specialized personnel for vulnerability assessments in the public sector. Lectures for establishing protection measures in response to revisions of critical information and communication infrastructure and annual changes.

This content is composed of insights from experienced professionals—ranging from newcomers to those with 35 years of experience—performing vulnerability analysis and evaluation for Financial Security Standards and Major Information and Communication Infrastructure. It is designed to provide valuable information for new employees or experienced professionals transitioning from other fields. Among the various types, Database was selected, and the evaluation criteria are based on the Financial Security Standards. While basic training or handovers are typically based on the previous year's standards, I believe it would be helpful to familiarize yourself with various analysis techniques as well. Since diverse strategies are required for accurate and rapid diagnosis within a limited timeframe, this may also be beneficial for PMs who plan from the perspective of methodology and approach.

Career concerns in security consulting: 5 hours of audio explanations covering career solutions from entry-level to 30-year veterans. Includes mental stability and salary negotiation strategies for new security consultants or those struggling to adapt. Includes methods for upgrading job skills and improving internal/external reputation. A lecture designed to resolve concerns for those considering a job change or career path shift.

With hacking incidents occurring continuously from 2025 to the present, the addition of penetration testing to ISMS-P certification has been finalized. As the work-life balance and importance of penetration testers rise, there is a need for an environment where they can grow. Unlike other fields of information security, penetration testers can only practice and build portfolios when a proper environment is provided. Unlike the first penetration testing environment which simply provided a practice lab, this second environment allows you to build the website yourself, complete with more diverse admin functions and even actual payment features! Penetration testing scenarios for achieving practical goals have been fully implemented! ~Hone your skills according to the 2026 Major Information and Communication Infrastructure penetration testing items and evolve into one of the top penetration testers in the country!~

The recent Coupang personal information leak has been recorded as the largest data breach in South Korea's history, marking an instance where the personal information of virtually every South Korean citizen was compromised. However, the debate regarding the effectiveness of ISMS-P concluded with meaningless improvement measures such as mock hacking and certification revocation. As of December 11, 2025, companies like Coupang—which were subjects of the Personal Information Processing Policy Evaluation System conducted by the Personal Information Protection Commission in 2024—continue to operate in violation of more than 10 criteria of that evaluation system. The reason for this lies in human error involving Coupang's personal information team (comprised of top domestic and international experts) and ISMS-P auditors (who hold the highest domestic and international qualifications). With basic common knowledge of the Personal Information Protection Act, this recent leak, as well as breaches at Gmarket, Netmarble, SKT, KT, and LG U+, could have all been prevented. In reality, accidents continue to occur because customers' personal information is not protected—or appropriate protective measures are not established and operated—due to human issues such as inadequate preliminary inspections and differences in legal interpretation. Through this lecture, you can acquire the skills to evaluate personal information transparently and objectively, with the hope that personal information protection for customers will be achieved through professional training aimed at proper inspection methods and eliminating blind spots.

As customer anxiety grows due to the expansion of personal information leak incidents, companies have been operating management systems that fail to properly identify personal data or implement adequate security measures. These systems have relied on operational frameworks based on ISMS-P/ISO27701 standards (managed by lawyers, etc.) and penetration testing (RED TEAMs, e.g., Coupang) composed of winners from domestic and international hacking competitions. Even companies that have not yet experienced an incident are in a situation where a leak could occur at any time. - The reason is that personal information managers are creating unmanaged blind spots themselves, such as through inadequate methods of obtaining customer consent and insufficient identification of personal information processing statuses. -> Therefore, it is necessary to share information regarding fines and penalties (as of 2024.12.8) related to domestic companies' consent forms and privacy policies. This will improve business operations by enhancing the expertise of personal information managers and ensuring that proper security measures for personal information protection are transparently disclosed to customers.

Since most large corporations and financial institutions are conducting penetration testing in addition to standard mock hacking, there is a recent need to establish new roles and secure capabilities to perform intrusions as a "RED TEAM" in the literal sense. Therefore, beyond simple WEB and APP mock hacking, we have opened a training course where participants can discover scenarios for infiltrating servers and practice executing large-scale personal information leaks. + Provision of server and website environments for penetration testing + Sharing of hacking tools and methodologies

- This project involves installing actual apps on mobile phones and practicing simulated hacking using hacking tools, in accordance with the inspection standards for electronic financial infrastructure and public services. - This course allows you to gain an understanding of mobile app penetration testing, overcome any hesitations, and learn everything from inspection know-how to report writing and communication methods.

- Provision of penetration testing environments and inspection tools - Web penetration testing practice based on the 2026 revised edition for Critical Information and Communication Infrastructure - Web penetration testing practice based on the 2026 revised edition for Electronic Financial Infrastructure - Review and sharing of vulnerabilities existing on websites - Training on penetration testing reporting methods and improvement strategies

- Training on inspection methods aligned with cloud management system inspection items among the vulnerability analysis and evaluation criteria for electronic financial infrastructure - Inspecting the application of protective measures required by the Electronic Financial Supervision Regulations for cloud and virtualization environments, respectively - Organizing the items that must be included in the establishment of cloud security regulations and procedures - Securing evidentiary materials for tasks related to the evaluation and certification of cloud environments

-Learn about the information security continuous assessment items conducted annually for financial companies, and strengthen preparation and response capabilities as a financial security officer -Learn based on the highest-grade information security continuous assessment cases, and receive education on know-how to achieve and maintain the highest grade in information security continuous assessment

- Understand best practices for each item in the annual inspection of the electronic financial infrastructure management system for financial companies, and derive management system improvement tasks to appropriately prepare for security incidents and data leaks. - Present management system cases that can be established alongside ISMS-P/ISO27001 certification and management system establishment for financial security personnel. - Provide best practice materials for security personnel working in companies to utilize management system cases and for freelancers preparing for electronic financial infrastructure management system inspections. - Provide specialized education for consultants, R&D, industry, academia, and the legal profession who require additional training on the electronic financial infrastructure management system in accordance with the Electronic Financial Transactions Act and the Electronic Financial Supervisory Regulations.

Victims of various financial fraud incidents, such as voice phishing, malicious URLs, mobile scams, account and card misuse, internet banking fraud, and ARS authentication scams, are on the rise. Recently, hacking and fraud techniques have become more sophisticated, exploiting vulnerabilities in open banking, simple payment services (Pay), enhanced scam methods, hackers' use of leaked personal information, and the takeover of personal PCs and mobile devices. Financial authorities and various financial institutions do not specifically disclose the procedures of these incidents or the hacking methods used to financial consumers. Having received reports from those around me about the growing misunderstandings among people who have never experienced hacking, I recognized the seriousness of the situation and produced this educational material. I sincerely hope you gain an accurate understanding of hacking, comprehend the relevant laws and policies, and properly establish proactive prevention systems and strengthen response measures. (Under current law, you are responsible for any incidents that occur.)

Classification of inspection items and establishment of an inspection plan (strategy) during network inspection Establishment of inspection criteria considering the risk and difficulty of actions Inspection of network service items and strategies for utilizing server access control solutions Command-based inspection after remote network access and preparation of risk assessment reports Interviews with network personnel and application of manual inspection items

Database vulnerability assessment training for the protection of critical information and communication infrastructure in the public sector. Demand for vulnerability assessments arises as a legal requirement. Characterized by the need to secure sufficient assessment time and budget, particularly in the public sector. Lack of specialized personnel for vulnerability assessments in the public sector. Lectures for establishing protection measures in response to revisions of critical information and communication infrastructure and annual changes.

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

Cyber security threats are increasing every year, stealing personal information and abusing privacy. This course covers security issues and security activities that employees must know and follow in their work and personal lives.

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. The course 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 to the basic concepts of information and communication technology, by understanding the trends and roles of information and communication technology utilized in real life and across industries, this course 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 further utilize it for advanced learning or preparation for related certifications.

This course is designed to prepare you for the Information Security Engineer written exam by concisely summarizing core theories and strengthening practical skills through problem-solving. Take a step closer to obtaining your Information Security Engineer certification with past exam analysis and practical strategies.

This lecture is designed to make personal information protection education interesting and ‘social engineering-based.’ Rather than covering the revisions to the Personal Information Protection Act, it focuses on real-life information protection threat cases and responses.

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

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 course systematically teaches practical Docker skills (installation→operation→automation→security) and comprehensively covers the latest security threats and countermeasures in each section. It features a hands-on approach where you learn by following along with practical exercises. This curriculum is highly recommended for DevOps engineers, infrastructure engineers, and security practitioners who want to experience the latest container/cloud environments in real-world scenarios.

"Nationally Certified Industrial Security Manager" New Renewal Version Final Update Completed!! 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 is structured so that even non-security majors can understand the concepts, structure, and flow of industrial security. It is designed not only for exam preparation but also for practical application and career expansion.

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

This online course covers everything from the basic concepts of information security to the latest security issues, focusing on core content for obtaining certification. It enables efficient exam preparation through theory and practical mock exams that reflect the latest trends, and is structured so that even beginners can easily follow along.

**"Digital Forensic Techniques by Byte Detective: Evidence Collection and Securing"** is a course focused on how to collect and preserve digital evidence required in cases of cybercrime, internal information leakage, and security incidents. From the basic concepts of digital forensics to the principles of evidence collection, maintaining integrity, and legal procedures for securing evidence, this course explains everything through case studies and procedural steps so that even beginners can understand. You can systematically learn the forensic mindset and core concepts of securing evidence that are essential to know before using professional analysis tools.