What is an information security expert? What do they do and how should they prepare?

Learn how to use Notion, the next hottest app after Evernote, step-by-step from the beginning with a focus on practice.

Network packet analysis is essential when conducting incident analysis and vulnerability analysis. Among the tools available, Wireshark is the most widely used, and this course covers the complete utilization of Wireshark and provides understanding through incident analysis case studies.

This course will help you improve your work skills by utilizing PowerShell in your field.

Through the lectures, the Protostar tutorial helps you understand the principles of the system attack techniques through several example programs.

This is a practical course that allows you to learn and practice from basic app analysis to applying source code response measures using an Android mobile virtual banking app. It is a course that can be taken from beginners to intermediate or higher. It is a required subject for those who have chosen the mock hacking career path.!!

It covers everything from basic learning of Windows application defense techniques and bypass attacks to how to utilize them and analysis of the latest attack cases. It is highly recommended for those who have chosen a career in mock hacking or malware analysis.

The most commonly used tool for web vulnerability analysis (hacking) is the web proxy server. Among them, BurpSuite is used the most. BurpSuite is planned to be regularly updated to help with web mock hacking.

'What is the fastest way to acquire digital forensics skills?' I always have this question in my mind. Many people often ask, "How can I learn forensics skills quickly?" In my experience, the fastest way to get to where I am now through self-study is to acquire skills through problem solving. In this course, you will acquire and understand various forensics skills through the skills required for the digital forensics challenge and solving major challenge problems held in Korea.

In Disk Forensics CTF, we will learn about the various types of problem analysis methods that occur on the disk. We will look at the process of analyzing artifacts related to the disk structure and the operating system installed on the disk to find the hidden message or answer you want in the problem.

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 training is a hands-on course covering infrastructure construction using Docker container technology, vulnerability analysis, and API web server diagnostics. It is designed to comprehensively learn from the basic concepts of Docker to its application in real-world environments, security vulnerability analysis, and response.

You will be able to open the process and manipulate the values you want through the Cheat Engine tutorial. Have fun practicing from installing the tutorial to the bot that automatically breaks it!

IT services are rapidly transitioning to cloud environments. This covers everything from basic virtual infrastructure construction to understanding service operation, monitoring, and security areas for each area to secure the MS Azure cloud environment.

This lecture is a free special lecture for those who have chosen a career in IT security from Boan Project (www.boanproject.com). It will be especially helpful if you have chosen a career in mock hacking.

This course is a guide for those who have chosen a career in IT security or those who wish to pursue it.

You will learn how to analyze and quickly visualize various types of data using the Python Streamlit library and output it as a web service. You can use it when you want to apply it to your work faster than the existing web development method.

The most important part of the security response and security control work is to monitor and remove potential security threats to your company/customer services in advance. Let’s establish and utilize a security threat monitoring plan using the OSINT search service Criminal IP.

When you think of IoT (Internet of Things), the first thing that comes to mind is Raspberry Pi. We will cover everything from the basic installation process of Raspberry Pi to sensor control, building and utilizing various servers, and cloud connection.

This course has been prepared with “subtitles” for those who have chosen a career in mock hacking and are curious about how to prepare.

I want to do data analysis and machine learning with Python programs. Isn't it difficult? First, you need to learn the basic grammar and basics of Python programs. This course will help you get out of the beginner stage.

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.

For those who have chosen a career in information security/information technology and are preparing to move to large corporations/financial institutions, we will reveal our strategy for passing the exam. A current CISO who has personally recruited and recommended numerous people will share his secrets for passing the exam. He has heard from his acquaintances, security company CEOs and executives of large companies, and compiled a recruitment bible by collecting a vast amount of recruitment secret data.

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 course has been prepared with “subtitles” for those who have chosen a career in mock hacking and are curious about how to prepare.

Were you frustrated because you didn't know what a data analyst does? Listen to the stories of three data analysts working in different domains!

This course will empower you to strengthen the core of your business marketing by using data to discover marketing insights.

Through this lecture, you will be able to skillfully utilize Excel functions in real-life situations. You will learn how to use the office program (Excel) required by business practitioners and acquire the ability to process work appropriate to the work environment.

The best preparation course for those who are aiming for employment or a job change as a server developer. Gain hands-on project experience using Java and Spring and gain confidence in interviews.

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.

It contains the growth history and know-how of portal N Corporation, which achieved rapid growth with cloud services.

If you are preparing for a job change after 5 years or less, we will tell you all about career management methods along with successful cases of career branding that can increase your passing rate by more than 2 times with a strategy that differentiates you from others!

Have you learned JavaScript but find yourself stuck when it comes to actual projects? I created this course for those who can use forEach but hesitate to use reduce, find asynchronous code a headache every time they see it, and build components without knowing the underlying reasons for their structure. This course doesn't just explain syntax. It focuses on "why we use it this way" to help you develop the coding intuition needed to jump straight into real-world work.

Gim Nai Career Accelerator has coached over 3,000 professionals 1:1. Based on insights gained from her direct career transition experience and numerous coaching sessions, she shares everything 'from preparation methods to practical tips' for career growth.

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

LeetCode explained by Dalle, a Korean developer working at a Silicon Valley startup! This is a practical LeetCode problem-solving course that doesn't just provide answer codes, but compares multiple approaches for each problem, analyzes time and space complexity together, and explains why certain solutions are more efficient. First, we write the most intuitive approach and analyze its time/space complexity to identify bottlenecks and improvement points. Then, we explore alternative approaches applying various data structures and algorithmic techniques, comparing the performance differences and pros and cons of each method. Through this, it helps you develop problem-solving skills to design efficient solution strategies on your own when facing new problems.

A course where you can understand core data structure concepts and train to explain them verbally for interviews.

If you review the multiple choice questions, you can predict the second and third questions. You need to thoroughly study why you got the questions right and why you got them wrong in order to prepare.

Are you knocking on the door of employment, but finding it difficult? As a non-major humanities graduate and academy completer, I will share the "portfolio that actually works" which I used to break through and open the doors to employment after months of trial and error.

Hello, I am Gamja, a 4th-year frontend developer. Thinking back to when I first learned JavaScript, I remember many times when I felt like I understood everything while following along with YouTube videos or books, but my mind would go completely blank the moment I opened an empty editor. At first, I was just busy copying and pasting code I found through Googling. Because of that, when an error occurred, I didn't know where to start fixing it, and I would spend several days staying up all night in frustration. That’s when I realized a painful truth: writing one line of code yourself while understanding the principles is more valuable for your actual skills than copying someone else's code 100 times. Many beginners struggle with these concerns in front of the high wall of JavaScript: 🚨 "I made the screen look pretty with HTML/CSS, but I feel lost trying to make it move." 🚨 "I've memorized all the syntax for variables and functions, but I don't know how to combine them in practice." 🚨 "My head hurts just hearing terms like event bubbling or DOM manipulation." That is why I prepared this course. I have organized only the 'surest shortcuts' that I learned through countless trials and errors. While preparing the materials, I didn't list difficult development jargon. I boldly discarded the grammar found in thick textbooks that you won't even use right away. Instead, I will plant the core principles used in practice as naturally as breathing into your mind through intuitive everyday metaphors like 'conveyor belts' and 'paint palettes.' In this course, you won't just learn theory. As soon as you learn the theory, you will build four core UIs that you will inevitably encounter in frontend work—such as accordions, tab menus, and dark mode toggles—from scratch with me. After completing the course, you will no longer be someone who scrapes someone else's code and presses the run button while praying. You will be reborn as a real frontend developer who can design how to structure a screen on your own and write JavaScript code according to your intentions. I have included all of my practical know-how. Don't stop in front of an empty editor anymore. It's time to get started.

In a world where every resume looks the same, "differentiation" is what gets you hired. Over the course of 6 weeks, learn 4 practical resume strategies delivered directly by an active backend professional.