Cybersecurity
Go to the intro resource2 resources
⬡ Website
Full course
Problem sets & exercises
CS50's Introduction to Cybersecurity
Harvard's dedicated cybersecurity course - passwords phishing encryption authentication privacy and securing systems. For technical and non-technical learners alike. Completely free.
▶ YouTube
Single video
Ethical Hacking in 100 Seconds
A sharp 100-second intro to ethical hacking and penetration testing - what it is why it matters and how CORS fits in. Perfect first hook.