What Is Cybersecurity? - Cybersecurity Fundamentals: Lesson 0

Опубликовано: 27 Сентябрь 2026
на канале: Cybersecurity4You
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What is cybersecurity? In this beginner-friendly introduction to cybersecurity, we break down what cyber security actually means, why it matters, and the fundamental concepts you need to understand before getting started in the field. You’ll learn about the CIA Triad Confidentiality, Integrity, and Availability and how these three principles form the foundation of cybersecurity.

We’ll also explore why cyber attacks can have serious financial, reputational, and privacy consequences, as well as introduce three major areas of cybersecurity: network security, application security, and human security.

Finally, we look at the attacker vs defender mindset and why understanding how attackers think can make you a better defender. This is Lesson 0 of a cybersecurity course for complete beginners, designed to take you from the fundamentals into practical, hands-on cybersecurity, including terminals, labs, and ethical hacking concepts in future episodes.

If you’re completely new to cybersecurity and want to learn cybersecurity from scratch, this series is a great place to start.

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