Ethical Hacker & Cyber Defence podkast

Confidentiality, integrity, availability: what security protects

23.10.2026

Ethical Hacker & Cyber Defence

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Why security needs a clear target In the previous activities you learned to separate a threat, a vulnerability and a risk, and you met the attackers who exploit them. One question remains: what exactly is damaged when an attack succeeds? Cybersecurit...

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Snapshots: going back after a mistake
9.11.2026
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What a snapshot is and why you need one You have created your first Linux virtual machine (VM) in your virtualisation software. You will soon break it, and that is normal. You will install the wrong package, misconfigure the network, delete a system ...
Choose and download a security-focused Linux distribution
8.11.2026
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What a security-focused Linux distribution is You now have virtualisation software installed on your computer. The next step is to choose the operating system (OS) that will run inside your first virtual machine (VM). In cybersecurity, that OS is alm...
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Virtualisation: running several computers inside yours
6.11.2026
15:00
What virtualisation is and why your lab depends on it In the previous activity, you saw why an ethical hacker always trains in a lab and never on a real system. You now need the technology that makes this lab possible on a single laptop: virtualisati...
Why a lab: training without ever touching a real system
6.11.2026
15:00
The lab answers the authorisation problem In the previous activities, you learned one central rule. The only difference between a penetration test and an attack is written authorisation from the owner of the system, within a defined scope. This rule ...
Cybersecurity jobs: attacking, defending, investigating, auditing
4.11.2026
15:00
Four families, one shared incident In your previous activities, you followed an incident from start to finish: someone attacks, someone detects and responds, someone investigates, and the organisation then fixes its weaknesses. Each of these moments ...
Scope and rules of engagement: what you are allowed to test
3.11.2026
15:00
From authorisation to scope In the previous activities, you learned that the only difference between an ethical hacker and an attacker is authorisation. Authorisation alone is not enough, though. An authorisation always applies to something precise: ...
The legal framework: what the law forbids and what written authorisation allows
30.10.2026
15:00
Why the law is your first tool In the previous activity, you saw that the only thing separating an ethical hacker from a criminal is authorisation. This lesson explains what that means in law. The commands, tools and techniques used by a penetration ...
Ethical hacker: the difference between testing and attacking is authorisation
30.10.2026
15:00
Same techniques, opposite status In the previous activities you studied attackers, their motivations, attack families and how an incident unfolds from intrusion to investigation. Here is the key idea of this lesson. An ethical hacker uses exactly the...
Attack, defence, investigation: an incident from start to finish
28.10.2026
15:00
Why follow an incident from start to finish You already have the basic vocabulary of cybersecurity. You can tell a threat from a vulnerability and a risk. You know who attacks and why, and which property of confidentiality, integrity and availability...
Attack families: phishing, malware, intrusion, denial of service
27.10.2026
15:00
Phishing: attacking the human You now know how to name a threat, a vulnerability and a risk. You know who attacks and why, and which property is hit: confidentiality, integrity or availability (the CIA triad). This lesson adds the missing piece, whic...

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