Fundamentals of Information Security and System Resilience

In our highly connected digital landscape, system downtime and data breaches can devastate any organization. Understanding how to protect critical assets and ensure continuous operations is no longer optional for IT professionals. This course provides a clear, text-based path to mastering the core principles of information security and system resilience. You will transition from understanding basic security concepts to implementing robust defensive strategies that keep systems running smoothly. What you'll learn: Understand foundational security terminology, threat models, and risk assessment frameworks; Configure defensive measures to mitigate DoS and DDoS attacks effectively; Implement secure backup strategies and disaster recovery protocols to prevent data loss; Apply modern zero-trust security architecture principles to network design; Monitor system health and establish incident response workflows for rapid recovery. We begin by exploring essential security definitions, threat landscapes, and access controls, before moving into practical methodologies for hardening infrastructure, managing vulnerabilities, and responding to active incidents. This course is designed specifically for beginners, IT support staff, and aspiring system administrators with no prior security experience. Equip yourself with the essential skills to safeguard digital infrastructure and maintain uninterrupted operations today.