The New State of the Art in Information Security: From Cloud to Crypto, AI-Driven Security to Post-Quantum Computing. Now extensively updated throughout, Security in Computing, Sixth Edition, is today's one-stop, primary text for everyone teaching, learning, and practicing information cybersecurity. It defines core principles associated with modern security policies, processes, and protection; illustrates them with up-to-date sidebars and examples; and shows how to apply them in practice. Modular and flexibly organized, it supports a wide array of courses, strengthens professionals' knowledge of foundational principles; and imparts a more expansive understanding of modern security. Cryptography is a specialized topic that depends on several areas of mathematics and theoretical computer science, including number theory, finite field algebra, computational complexity, and logic. After reading this overview, you would need to develop a significant background to study cryptography in depth. And we caution you strongly against studying a little cryptography and concluding that you can design your own secure cryptosystem. The field of cryptography is littered with failed approaches designed even by experts, so nonexperts are well advised to "leave the driving to the professionals."