If we want a solid understanding of security technology, we must look closely at the underlying strengths a of information technology itself. An ideal text for introductory information security courses, the third edition of Elementary Information Security provides a comprehensive yet easy-to-understand introduction to the complex world of cybersecurity and technology. Thoroughly updated with recently reported cybersecurity incidents, this essential text enables students to gain direct experience by analyzing security problems and practicing simulated security activities. Emphasizing learning through experience, Elementary Information Security, Third Edition addresses technologies and cryptographic topics progressing from individual computers to more complex Internet-based systems. Designed to fulfill curriculum requirement published the U.S. government and the Association for Computing Machinery (ACM), Elementary Information Security, Third Edition also covers the core learning outcomes for information security education published in the ACM's 'IT 2008' curricular recommendations. Students who are interested in becoming a Certified Information Systems Security Professional (CISSP) may also use this text as a study aid for the examination.