Active Directory Security: Hardening, Recon, and Initial Access

Active Directory is the backbone of identity management in modern enterprise networks, making it the primary target for cyber attackers. Understanding how adversaries perform reconnaissance and gain initial entry is essential to building an effective defense. This text-only course guides you from foundational identity concepts to practical defensive configurations. You will learn to think like an attacker to identify security gaps, and then apply modern hardening techniques to lock down your directory services. What you'll learn: - Understand core Active Directory architecture, authentication protocols, and trust relationships. - Identify common reconnaissance techniques used by attackers to map network resources. - Defend against initial access vectors and credential harvesting methods. - Implement modern hardening practices, including disabling legacy protocols and enforcing strong password policies. - Apply the principle of least privilege using administrative tiering and modern zero-trust concepts. - Analyze security logs to detect unauthorized directory queries and suspicious behavior. You will start with key terminology and foundational concepts of directory services before exploring common attack paths and practical configuration steps. Each module features clear written explanations and configuration examples designed to build your confidence step by step. This course is designed for aspiring cybersecurity professionals, system administrators, and IT beginners who want to specialize in network defense. No prior security experience is required. Start reading today to build a resilient and secure directory infrastructure.