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 is a lecture on hacking the web using various tools used for web hacking. * The hacking targets three related attack vectors: web servers, web applications, and web users.

Metasploit Definition A tool that allows you to use known vulnerability attacks with CVE numbering, a mock hacking test tool that helps make hacking easier.

One of the major fields of hacking is hacking networks.

This course is about hacking like a game, and hacking games. Let's learn how to hack using Android games and Cheat Engine!

APT malware production technology is the process of producing the fundamental code process of vaccine bypass and information security breach attack technology by producing advanced (upper) malware rather than basic malware production. Don't miss APT, the essential element of hacking!

Learn the skills to analyze vulnerabilities and defend against hacking through network analysis!

Practice your embedded system hardware hacking skills.

Let's create malware such as ransomware and Trojan horses ourselves, and learn how to bypass antivirus software!

We introduce the basic knowledge of Hack&Hat analysis, a must-have subject to become a security expert.

Computer Utilization Ability Level 1 Practical Test! Practice with basic theory and the latest past questions and pass on your first try! Fighting:)

This is a certification course that allows you to use Excel at an expert level, which is highly useful in practical applications. If you found Level 2 easy, try Level 1.