In todays workplace computer and cybersecurity professionals must understand both hardware and software to deploy effective security solutions. This book introduces readers to the fundamentals of computer architecture and organization for security and provides them with both theoretical and practical solutions to design and implement secure computer systems. Offering an indepth and innovative introduction to modern computer systems and patentpending technologies in computer security the text integrates design considerations with handson lessons learned to help practitioners design computer systems that are immune from attacks. Studying computer architecture and organization from a security perspective is a new area. There are many books on computer architectures and many others on computer security. However books introducing computer architecture and organization with security as the main focus are still rare. This book addresses not only how to secure computer components CPU Memory IO and network but also how to secure data and the computer system as a whole. It also incorporates experiences from the authors recent awardwinning teaching and research. The book also introduces the latest technologies such as trusted computing RISCV QEMU cache security virtualization cloud computing IoT and quantum computing as well as other advanced computing topics into the classroom in order to close the gap in workforce development.ampampnbsp The book is chiefly intended for undergraduate and graduate students in computer architecture and computer organization as well as engineers researchers cybersecurity professionals and middleware designers.