Foundations of Computer Systems Security

In an increasingly connected digital landscape, building resilient and secure computer systems is more critical than ever. Understanding how systems fail under attack is the first step toward designing robust defenses that protect sensitive data. This text-based course guides you through the foundational principles of computer systems security, helping you transition from basic concepts to modern defense strategies. You will learn to think like both an attacker and a defender, analyzing vulnerabilities to implement effective security controls. What you'll learn: - Analyze threat models to identify potential system vulnerabilities and attack vectors - Understand operating system security mechanisms, including access controls and capabilities - Implement secure information flow and language-based security practices - Explore network protocol vulnerabilities and modern zero-trust security concepts - Address security challenges in modern web applications and hardware architectures - Apply current best practices to mitigate common software vulnerabilities like buffer overflows Starting with fundamental definitions and core security concepts, this course guides you step-by-step through operating system security, network protection, and modern application defenses. This course is designed for beginners, software developers, and aspiring security professionals, requiring no prior cybersecurity experience. Begin reading today to build the essential skills needed to protect digital infrastructure.