Have you ever wondered how real attackers carry out cyber attacks? BHPT is a comprehensive hands-on course that uses on-demand labs to learn methodologies for discovering, exploiting, reporting, and responding to vulnerabilities by conducting penetration testing from an attacker's perspective against specific hosts.

RTL (Red Team Lite) is an introductory red team course that teaches the concepts and technical elements required for full-chain red team penetration testing—including attacker infrastructure setup, C2 advancement, payload creation, information gathering, initial compromise, foothold establishment, privilege escalation, lateral movement, post-exploitation, and data exfiltration—through real-world attacker TTPs.

Have you ever wondered how real attackers carry out cyber attacks? BHPT is a comprehensive hands-on course that uses on-demand labs to learn methodologies for discovering, exploiting, reporting, and responding to vulnerabilities by conducting penetration testing from an attacker's perspective against specific hosts.

Web Hacking - It's Okay If You're a Beginner From the Basics to Practical Skills, an Introductory Web Security Course That Teaches You to Think Like a Hacker

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

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 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.

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.

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

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!

Repeatedly study the 100 most frequently appearing CPPG core topics through theory, mind maps, and problem solving.

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.

Understanding network configurations is extremely important when building applications on AWS. In this course, we will clearly explain the concepts and actual construction methods of basic network configurations in AWS.

This is a course where you can learn the basics of web technology. You can learn the basics of web technology in a short period of time. If you are interested in studying or getting a job related to the web, you must take this course!

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.

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