Programming & AI · Baccalaureate year 2, 2027 · Term 1
Chapter 2 explained: Cybersecurity
Cryptographic technologies and authentication, network security design, and incident response and risk management.
Lessons in this chapter (3 lessons)
Lesson 2-1: Cryptographic Technologies and Authentication
HTTPS uses public-key cryptography to share a key safely and common-key cryptography to move data quickly. Services stay safe by layering encryption, certificates, signatures, and multi-factor authentication.
Lesson 2-2: Network Security Design
Layer your defenses — firewall, VPN, DMZ, endpoints — and verify every access (zero trust). One breach is then far less likely to expose the whole network.
Lesson 2-3: Incident Response and Risk Management
Follow the six stages in order (prepare → detect → contain → eradicate → recover → prevent), and prioritize risks by impact × likelihood.
Build the security map
Chapter videos
Languages review: encryption, MFA, web design, A/B testing and AI ethics
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