What Is Cybersecurity?
beginner 20 min 3 tasks
What cybersecurity protects, who it protects it from, and why it affects everyone, not just experts.
By the end of this lesson you can explain what cybersecurity is, name the kinds of things it protects (information, devices, services, people), describe who attackers are and why they attack, and describe the difference between "red team" (attack to find weaknesses) and "blue team" (defend and detect).
You do not need any experience to start. Every new word is explained the first time it appears, in bold.
Part of these paths
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Updated 2026-11-01