Windows Login Security and Mimikatz Defense for Beginners

Windows authentication security is a critical pillar of enterprise defense, yet credential theft remains one of the most common entry points for network-wide attacks. Understanding how operating systems secure passwords—and how attackers bypass these protections—is essential for any aspiring security professional. This text-only course guides you through the foundational mechanics of Windows login security, credential storage, and the specific vulnerabilities exploited by tools like Mimikatz. You will transition from understanding basic authentication protocols to implementing modern, robust defenses that protect enterprise environments from credential dumping. What you'll learn: - Understand how Windows stores and manages credentials using LSASS, NTLM, and Kerberos protocols. - Analyze how credential dumping tools like Mimikatz extract plaintext passwords and hashes from memory. - Explore modern Windows defensive features including Credential Guard, LSA Protection, and restricted admin modes. - Apply security hardening techniques such as network segmentation, patching, and zero-trust access controls. - Practice identifying signs of credential theft and configuring proactive defenses through structured written scenarios. The course starts with essential terminology and the architecture of Windows authentication before moving into practical threat analysis and step-by-step mitigation strategies. You will read detailed explanations and analyze configuration examples designed to build your defensive engineering skills. This course is designed for beginner security analysts, system administrators, and IT professionals who want to understand Windows security fundamentals; no prior experience with penetration testing is required. Start reading today to master the fundamentals of Windows credential hardening and protect your network against modern authentication exploits.