Overview
Your complete guide to Cybersecurity basics
Six lessons for people with no technical background: what we protect and why, who attacks in 2026, how an attacker thinks, phishing, malware and ransomware, and identity and passwords. They include the attack stages from both sides, a phishing email whose signs you find, and a password strength calculator.
Non-technical and technical learners alike. Every part opens two ways in: a plain path built on an analogy for someone starting from zero, and a detailed path for someone who knows the basics and wants depth.
An animation, then what you need before you start, then the idea with code you run, then a worked example, then review cards and "test your understanding" questions.
Do not leave a part before you can answer its questions without guessing. Reading alone proves nothing.
Pick a topic
A look at Cybersecurity basics
You start with the big picture: what we protect and who attacks, then the door most attackers walk through: people and passwords.
| Part | Topic | You learn |
|---|---|---|
| 1 | What is cybersecurity? What we protect, and from what | Asset, threat, vulnerability and risk, CIA, controls, AAA, defence in depth |
| 2 | The 2026 threat landscape: who attacks, why and how | 2026 numbers, kinds of attackers, ransomware, malware, supply chain, shadow AI |
| 3 | How attackers think: the kill chain and MITRE ATT&CK | The cyber kill chain, attack and defence at each stage, ATT&CK v20 tactics and techniques |
| 4 | Phishing and social engineering | Social engineering triggers, phishing signs, the kinds, SPF, DKIM and DMARC, AiTM attacks |
| 5 | Malware and ransomware: how it gets in and how to stop it | Kinds of malware, how it gets in, ransomware and double extortion, indicators of compromise (IOCs), prevention, the first minutes after infection |
| 6 | Identity, passwords and multi-factor sign-in | Authentication factors, entropy, password managers, MFA and passkeys, password storage, IAM and SSO |
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