Skill · Security · Understand threats and reason about defense
Recognize a common threat from its indicators and choose the measure that stops it
Recognize a common threat from its indicators (malware, phishing and payment fraud, ransomware, attacks on credentials or the network, leaks through misconfiguration or insider threat), place it in the kill chain, choose and type the measure that prevents or detects it, and report a phishing attempt or an unsolicited MFA prompt; read a threat landscape report for what it measures, and tell an indicator of compromise (IoC) from a tactic, technique and procedure (TTP).
Start lesson 1The Security domain
- 7 lessons
- ~2 h 50 of reading
- 7 quizzes
- 0 proof lab
The path
Where it comes from, where it leads
What you need to know first, where you stand on this skill, and what it opens next. Your status is computed in your browser, from what you have read and passed.
Before · 1 prerequisite
This skill, for you
Recognize a common threat from its indicators and choose the measure that stops it
Computing
It unlocks · nothing yet
No other skill requires it: it is an end-of-path skill.
The path through the foundations From the most upstream foundation to this skill: what is in place, what remains to read.
Lessons
How to learn it
7 lessons, about ~2 h 50, in program order. Each lesson ends with its quiz.
The program
7 lessons · ~2 h 50
- 1Le paysage des menaces en 2026 : ce que dit l'ENISA (in French)· 20 min
- 2Les types de logiciels malveillants (malwares) (in French)· 25 min
- 3Phishing et ingénierie sociale : comprendre et se protéger (in French)· 25 min
- 4Ransomware : comprendre et se protéger du rançongiciel (in French)· 25 min
- 5Attaques sur les identifiants et le réseau (in French)· 25 min
- 6Fuites de données et erreurs de configuration (in French)· 25 min
- 7Cyber Threat Intelligence (CTI) : le renseignement sur les menaces (in French)· 25 min
Beyond the lessons
Assess, practise, pass the proof
Reading a lesson confirms nothing. A skill is confirmed by a passed quiz, practised in a guided lab, and put to the test by a challenge or a mission; an imported lab result is not verified by the site.
Assess yourself
7 quizzes
At the end of the lessons: passed at 70%, they confirm the skill.
Practice
No guided lab
No guided lab practices it yet.
Proof
No proof
Neither a challenge nor a mission with a proof yet.
Placement test
Preparing the questions…
Your answers in detail
For each question asked: your answer, the correct answer, its explanation and the page to reread.
Around it
Who requires it, who teaches it
Required by
Taught by
Same block · Understand threats and reason about defense