The Business Case for Network Security provides valuable information on the justification for investment in network security solutions and services. This book covers the most current concepts and products from Cisco and other vendors, and covers the latest topics in network attacks, network security, ROSI (Return on Security Investment), and other number-crunching techniques that yield both objective and subjective data. The Business Case for Network Security presents an overview of security technology, giving readers
a holistic and objective model to help you quantify Return
on Investment and Total Cost of Ownership (TCO), as well as
less quantifiable measurements, such as risk tolerance.
The book methodically presents a range of network attacks, mitigation techniques, and security systems. These topics are explained in layman's terms with the aid of graphics, making them easily understandable to readers with non-technical backgrounds. Risks, and technologies available to protect against them, are explained in detail. Once readers have gauged their risk tolerance they will be shown three levels
of network security, allowing them to align their risk aversion with an appropriate security model: basic, modest, or comprehensive. They then build a list of capital expenditures and fixed costs todetermine a realistic figure for Total Cost
of Ownership. The TCO will be utilized as the foundation in calculating ROSI.
I. VULNERABILITIES AND TECHNOLOGIES.
II. HUMAN AND FINANCIAL ISSUES.
III. POLICIES AND FUTURE.
IV. APPENDIXES.
Appendix A. References.
Appendix B. OSI Model, Internet Protocol, and Packets.
Appendix C. Quick Guides to Security Technologies.
Appendix D. Return on Prevention Calculations Reference
Sheets.