Courses

Windows Infrastructure Security

Master Windows & Active Directory Security
Before Attackers Exploit Your Weaknesses

Identify & fix misconfigurations before they lead to breaches.
Learn real-world attack & defense techniques not just theory.
Secure Windows & AD environments using best practices, security baselines, and structured models like Tiering.

David Horák

Kerberos Security (Free Trial)

Master Kerberos Authentication & Prevent Credential Theft.

How Kerberos authentication works inside Active Directory.
How ticket encryption & delegation function and where security gaps exist.
How attackers exploit weak configurations—and how to defend against them.

David Horák

Stealing Credentials (Free Trial)

See How Attackers Steal Credentials—So You Can Stop Them.

How credentials & secrets are stored in Windows OS (LSASS, SAM, etc.).
How protections like Credential Guard work.
Real-world credential attacks (WDigest, delegation, token theft) and how to defend against them.

David Horák

Tiering Model (Free Trial)

Segment & Secure AD Privileges to Prevent Escalation.

What the Tiering Model is and why it’s essential for AD security.
How many tiers you need and how to structure them properly.
How Tiering protects against lateral movement & privilege escalation.

David Horák