Introduction
This chapter covers the second objective in Domain 1.0, General Security Concepts of the CompTIA Security+ exam. In this chapter, we will summarize fundamental security concepts for an understanding of the core principles and technologies that safeguard data and systems. From the principles of Confidentiality, Integrity, and Availability (CIA) to cutting-edge concepts such as zero trust and deception technology, this chapter will provide you with the knowledge you need to protect yourself and your digital assets.
As you go through this chapter, you will review non-repudiation and Authentication, Authorization, and Accounting (AAA), and explore how these concepts apply to both individuals and systems. We’ll also venture into the realm of physical security, where technologies such as bollards, video surveillance, and access control vestibules stand as the sentinels guarding our physical spaces.
This chapter will provide you with an overview of why companies...