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Inside Network Security Assessment: Guarding Your IT Infrastructure by David Kim, Michael Gregg

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Basic Security Principles

Security can be achieved in many ways, but it’s pretty well universally agreed that confidentiality, integrity, and availability (CIA) form the basic building blocks of any good security initiative. Although the acronym of CIA, used for the security triad, may not be as intriguing as the governmental agency with the same name, it most likely fits the priorities of security professionals better.

The concept of availability provides that information and systems are available when needed. Although many may think of availability only in electronic terms, it also applies to physical access. If you need access at 2 a.m. to backup tapes that are stored in a facility that allows access only from 8 a.m. to 5 p.m., you definitely ...

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