Foundations of Computer Systems Security

In an interconnected digital world, securing our computer systems is more critical than ever. Understanding how hardware, operating systems, and applications interact is the first step toward defending them against malicious attacks. This text-based course guides you through the core principles of computer security, moving from basic system architecture to modern defense strategies. You will develop a security-first mindset, learning how to identify vulnerabilities and apply protective measures across different layers of a computer system. What you'll learn: - Understand foundational computer architecture and how hardware components interact with security protocols. - Identify common software vulnerabilities, operating system risks, and application-level threats. - Learn the principles of the modern threat landscape, including malware, social engineering, and network attacks. - Apply the core concepts of cryptography, access control, and multi-factor authentication to secure system data. - Understand zero-trust architecture and modern security frameworks used to protect digital infrastructure. - Practice analyzing security risks and formulating basic defense strategies through written scenarios and exercises. The course begins by establishing essential terminology and exploring basic system components, before progressing to hardware security, operating systems, and modern network defense principles. Through clear written explanations and practical scenarios, you will build a solid theoretical and practical foundation in cybersecurity. Designed entirely for beginners, this course requires no prior cybersecurity experience or technical background. Start your journey into the world of cybersecurity and learn how to protect digital environments today.