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Fully updated computer security essentials—quality approved by CompTIA Learn IT security fundamentals while getting complete coverage of the objectives for the latest release of CompTIA Security certification exam SY0-501. This thoroughly revised, full-color textbook discusses communication, infrastructure, operational security, attack prevention, disaster recovery, computer forensics, and much more. Written by a pair of highly respected security educators, Principles of Computer Security: CompTIA Security ® and Beyond, Fifth Edition (Exam SY0-501) will help you pass the exam and become a CompTIA certified computer security expert. Find out how to: •Ensure operational, organizational, and physical security •Use cryptography and public key infrastructures (PKIs) •Secure remote access, wireless networks, and virtual private networks (VPNs) •Authenticate users and lock down mobile devices •Harden network devices, operating systems, and applications •Prevent network attacks, such as denial of service, spoofing, hijacking, and password guessing •Combat viruses, worms, Trojan horses, and rootkits •Manage e-mail, instant messaging, and web security •Explore secure software development requirements •Implement disaster recovery and business continuity measures •Handle computer forensics and incident response •Understand legal, ethical, and privacy issues Online content includes: •Test engine that provides full-length practice exams and customized quizzes by chapter or exam objective •200 practice exam questions Each chapter includes: •Learning objectives •Real-world examples •Try This! and Cross Check exercises •Tech Tips, Notes, and Warnings •Exam Tips •End-of-chapter quizzes and lab projects