CybersecurityBeginner

Cybersecurity Foundations

Understand threats, defenses and how security really works.

Taught by Prabin Shrestha · Security Engineer

What you'll learn

  • Explain the CIA triad and use it to evaluate whether a system is actually secure
  • Identify the main categories of malware and the attack vectors used to deliver them
  • Map a realistic threat model: who the attackers are, what they want, and how they get in
  • Apply defense in depth by layering controls so no single failure causes a breach
  • Reason about risk using likelihood and impact instead of fear, and prioritise fixes accordingly
  • Use core security vocabulary correctly and recognise phishing and social-engineering attempts

About this course

A plain-language introduction to how cybersecurity actually works: the principles attackers try to break, the ways systems get compromised, and the layered defenses that keep data safe. You will learn to think like a defender, speak the vocabulary fluently, and reason about risk instead of chasing fear. Every offensive idea is taught for one purpose only: so you can recognise it and stop it, legally and ethically.

Course content

8 lessons
  1. 1What Security Really Means: The CIA TriadThe three properties every security control ultimately protects.Preview
  2. 2The Threat Landscape: Who Attacks and WhyThe actors, their motives, and how to think about threats instead of fearing them.Preview
  3. 3Malware: The Families You Need to RecogniseWhat the major malware types do and how they behave differently.
  4. 4Attack Vectors: How Intruders Get InThe common doorways attackers use, with phishing front and centre.
  5. 5Defense in Depth: Layering Your ProtectionWhy no single control is enough and how to stack them.
  6. 6Risk: How to Decide What to Fix FirstTurning a flood of warnings into a ranked, rational plan.
  7. 7Identity, Authentication and Access ControlProving who you are and controlling what you can do.
  8. 8Cryptography and Secure Communication BasicsHow encryption protects data in transit and at rest.