Cybersecurity
A 25-chapter, step-by-step cybersecurity tutorial — from the CIA Triad through password/2FA/phishing awareness, the OWASP Top 10, Linux server hardening, all the way to a Personal Security Audit project.
25 Lessons · 200 min · Learning Platform Editorial Team

What Is Cybersecurity? (The CIA Triad)
What you need on the desk
- A web browser
- A password manager (Bitwarden, 1Password, or a browser's built-in one) — needed for the Intermediate chapter
- Optional: a VM/WSL (from the Linux tutorial) — for the server hardening lesson in the Advanced chapter
Know this much before you start
- Anyone who uses a computer or phone daily — no coding experience required
- Optional: if you've already gone through the Linux tutorial, it'll help even more with the Advanced chapter (server hardening)
By the end, you can
- Explain the CIA Triad (Confidentiality, Integrity, Availability) using real-world examples
- Spot and avoid phishing and social engineering attacks
- Set up a password manager, 2FA, and a backup strategy on your own
- Understand web vulnerability concepts like the OWASP Top 10, SQL Injection, and XSS
- Harden a Linux server from a security perspective
- Know the basic incident response framework (Identify → Contain → Eradicate → Recover → Lessons Learned)
- Complete a Personal Digital Security Audit of your own