Start with Security Basics

Security has a broad meaning in everyday life, but a more specific one when it comes to data, networks, computers, and mobile devices.

In this chapter, I want to introduce you to what you have at risk and how to set your goals in protecting your Mac as part of the philosophy that you’ll find throughout this book.

Understand What Security Means

As a general rule, we talk about security when we mean a way to reduce the likelihood of harm. You go through a security checkpoint at the airport. You have a home security system. A lecture is cancelled due to security concerns. An ad for a bike lock claims it offers high security.

With computing and networking, however, security is more specific: it’s the measures you take ...

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