Lector

Meet Your Instructor: David Horák

• System Security Engineer | Cybersecurity Educator | Team Leader | Auditor

With over 8 years of hands-on experience in securing Windows infrastructures, I’ve worked with small businesses to large enterprises, tackling real-world security challenges that IT teams face daily.

My Journey into Cybersecurity

I started as a Windows Server Administrator, but after three years, I wanted more. I transitioned into cybersecurity—but the path wasn’t easy. At the time, there was no single resource dedicated to Windows Infrastructure Security.

To gain expertise, I had to piece together knowledge from countless courses, webinars, and research. This experience shaped my approach—I know how overwhelming learning can be, which is why I created Windows Infrastructure Security—a structured, practical course to help others master Windows security without the confusion.

Certifications & Expertise

• Certified by Microsoft, GIAC, EC-Council, and CompTIA
• Specializing in Windows Security, Active Directory Hardening, Attack & Defense Strategies
• Passionate about teaching cybersecurity in a practical, no-fluff way

When I’m not working in cybersecurity, you’ll find me hiking, camping, or exploring new places.