Chapter 1. Computer and Network Security Fundamentals

The three golden rules to ensure computer security are: do not own a computer; do not power it on; and do not use it.

—Robert (Bob) T. Morris

Security is all about ensuring that bad things do not happen. This deceptively simple brief statement can in fact have very complicated interpretations. Exploring them can help in understanding what security really means.

Certain rule-of-thumb principles apply to the concept of security in general. Throughout this book, you will see that these heuristics apply equally well to computer security. First, security is always related to utility. To ensure that bad things do not happen, you can simply do nothing. For example, a car stored in a garage cannot ...

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