One-point lesson on web security for creating a secure website

An introductory course on web hacking for information security beginners and web developers! Start web hacking in a fun way with this course!

Easy-to-follow file download vulnerability attack techniques from web hacking beginners to practitioners! File download vulnerability attack techniques and advanced attack techniques used in practice! And how to apply secure coding!

The second lecture on SQL Injection, taught by a mock hacking practitioner! The first lecture covered the basics and the core principles of attacks, while the second lecture is about technical advanced attack techniques. Therefore, taking the first lecture is a must!

SQL Injection, the flower of web hacking, explained by a mock hacking practitioner! Learn attack and defense at the same time.

This lecture covers the king of client attacks, XSS (Cross-Site Scripting). You can systematically learn about the basic concepts of XSS, the attack principles, and most importantly, what process to go through to perform the attack procedure.

The ultimate web hacking master! File upload vulnerability attack technique! This is a training that will further improve the students' web hacking skills through a completely different approach from the existing known methods!

The ultimate web hacking! File upload vulnerability attack technique! Part 2 of the '2nd part' education follows Part 1 and covers more advanced techniques.

The basic steps to learn SQL injection attacks, the flower of web hacking! This is a lecture on basic SQL grammar!

The ultimate web hacking! File upload vulnerability attack technique! Part 2 of the 'Part 1' education follows Part 1 and covers more advanced techniques.

The ultimate web hacking! File upload vulnerability attack technique! Following Part 1, Part 2 '3rd part' education covers more advanced techniques in depth.

The ultimate web hacking! File upload vulnerability attack technique! Part 2 of the 'Part 1' education follows Part 1 and covers more advanced techniques.

We will take a closer look at the working principles through core theories and practices of the OAuth 2.0 protocol. And we will analyze the OAuth 2.0 protocol from the perspective of hacking and security.

Web shell is the core tool for file upload vulnerability attacks! Let's learn how to create a web shell together through this lecture~!

A web hacking course where you can learn, practice, and understand the principles by simply following along with WebGoat problem solving!

Basic understanding of web shells and web shell detection solutions, as well as attack methods and obfuscation techniques for bypassing them!

Introduction to web hacking and mock hacking for those who are new to web hacking and job seekers in related fields

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!

OSINT (Open Source Intelligence) is a term that was created by combining Open Source, which means ‘public source’, and Intelligence, which originated from intelligence activities for collecting military information. It refers to the overall process of collecting information from public sources such as the deep web, dark web, open web, and SNS.

This course is a lecture that teaches C# Windows Forms (WinForm) application development step by step from basics to hands-on practice. First, you will understand how Windows Forms applications work and learn the structure and usage of WinForm classes and Application classes. Through this, you will become familiar with the execution flow of applications and build a foundation through actual code practice. In the following lessons, you will design forms using the form designer tool and implement **user interfaces (UI) utilizing various controls** such as buttons, text boxes, and labels. Rather than stopping at simple UI composition, you will develop the ability to create programs applicable in real work by adding event handling and interactive features. Additionally, you will practice asynchronous task processing methods in the WinForm environment and learn techniques to simultaneously improve application performance and user experience. Through this course, learners can solidly build the fundamentals of desktop application development in Windows environments and acquire WinForm programming capabilities applicable to real work.

A web hacking course where you can learn, practice, and understand the principles by simply following along with WebGoat problem solving!

This course teaches you how to write safe and reliable code in the software development process. Rather than simply stopping at feature implementation, you'll learn programming principles and techniques that can prevent security vulnerabilities and ensure stability. Through hands-on practice and case studies, you can understand security threats that may occur in real development environments and acquire safe coding techniques such as coding rules, input validation, exception handling, and memory management to prevent them. By taking this course, developers will enhance the completeness of their code while gaining practical capabilities to develop software with security and reliability.

Even without any understanding of machine learning! You can create impressive projects with Google's Teachable Machine and HTML, CSS, JS. Let's create a service that finds similar celebrities together!

The new 2021 course, "Who builds paid web services these days? Everything about Firebase - JavaScript"! It will be a bible for beginner developers who dream of starting their own business.

This was created by a current Canadian developer for those who need to learn .NET Core for work or are interested in a powerful web development framework, and for those who want to learn skills that are useful for working abroad.

Learn Python web development A to Z while making it! Learn everything from web basics to blog development and deployment all at once.

Creating a responsive webpage using Bootstrap (BOOTSTRAP) [2024 Revised Edition]: As a practical production class, we will directly create a responsive web page for practical use with a layout that changes depending on the device, using Bootstrap 4.

Flask is widely used as a Python backend framework. Flask_SQLAlchemy is a database orm used in Flask. If you know Flask_SQLAlchemy, you can do web development with concise code.

Through this course, you can study short answer and descriptive questions from past practical exams for the Information Security Engineer.

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

Hot Vibe Coding these days! Using AI tools, you can learn how to develop and deploy a website (Next.js) with just a 'click!'

You can create a service that is not just cool on the outside, but one that allows you to meet users and get feedback. You can gain confidence in web development.

If you have learned HTML&CSS and JavaScript, try creating and deploying your own portfolio site using them. Actually using them will greatly help improve your skills.

If you are planning a service, a website is an essential element. Of course, in addition to the service, most of the currently provided program infrastructures operate based on the web. The purpose of this course is to learn how to create a website using Python, which is considered the easiest programming language, and how to set it up to an actual operational state.

This course is a step-by-step learning program that covers network programming from fundamentals to hands-on practice. First, we examine the origins and development of the Internet to understand how today's network environment was formed. Next, we learn the structure and operating principles of the TCP/IP protocol, which is the core of networking, to build a theoretical foundation. In the practical stage, we implement actual network communication using the Socket class, TcpListener, and TcpClient classes provided by C#, and experience client-server architecture. Through this, you can understand the actual data transmission and reception process and network connection procedures beyond simple theory. Finally, we visually implement network programs by creating user interfaces (UI) using WinForm. We practice enabling connection, message transmission, and reception through button clicks, developing the ability to create network application programs that can be utilized in real-world environments.

This lecture is the final lecture in the [Web Development Full Stack Course] lecture series for training full-stack web developers, and is a lecture on portfolio project development. By synthesizing everything learned in [Web Development Full Stack Course], you will be able to understand what you have learned while developing an actual web application and directly apply the basic functions.

This tutorial will show you how to use Bootstrap to create responsive web pages that change layout depending on the device.

From basics to professional practice, the all-in-one UI design class that covers everything with Figma! Master professional skills from core features like auto layout and components to responsive design, efficient handoff, and collaboration. Start now and upgrade your design capabilities to the next level!