Corporate Computer and Network Security, 2nd Edition. Ray Panko Pearson Prentice-Hall, 2010. Published July 2009. Prins Auto Gas Software. PowerPoint Presentations (click on the chapter title). The Threat Environment: Attackers and their Attacks 2. The Elements of Cryptography 4. Cryptographic System Standards 5. MIS: Corporate, Computer and Network Security Textbooks. Return to MIS. Showing 1-10 of 10. Product Image. Computer Security: Principles and Practice, 4th Edition. By William Stallings, Lawrie Brown. ISBN-10: 0-13-479410-9 ISBN-13: 978-0-13-479410-5 ©2018 Pearson. Price: $154.20 $146.49 Product Image. Corporate computer and network security pdf free download. Corporate computer and network security pdf free download. Canavan started his career in the IT field over 17 years ago working for Tymshare. Inc., a computer services and software company that created the Tymnet X.25 network. He is currently vice president for information systems and technology at Chevron FCU and an adjunct professor at Golden Gate University where.