Think Defensively — Cybersecurity Academy
🛡️ Real Python security exercises
🧩 Puzzle mini-projects
🎓 3 certificates
Level 1 · Beginner
Why passwords matter — password strength, checking for digits, and hashing with hashlib instead of storing plain text.
Not started
Level 2 · Intermediate
Unlocks after your Beginner certificate. Ciphers, safe input handling, and spotting common insecure code patterns.
🔒 Locked
Level 3 · Advanced
Unlocks after your Intermediate certificate. Deeper defensive coding practices and a final capstone project.
🔒 Locked
How this works
- Work through each week in order — every week teaches a concept through a real-world scenario, with a live editor to practise in.
- Pass the short quiz and complete the practice exercises to unlock the next week.
- Along the way you'll tackle puzzle-style mini projects that combine everything so far.
- Finish the final mini project to unlock your level certificate — and the next level.
🌱 Level 1 — Beginner: Why Passwords Matter
What you'll build
Across this level you'll build a defensive security toolkit: password strength and hashing, input validation, spotting insecure code, ciphers, safe string handling, a real login system, phishing awareness, log analysis, and file integrity checks.
🌿 Level 2 — Intermediate: Ciphers & Safe Input
What you'll build
This level reuses Beginner's full curriculum — password strength and hashing, input validation, spotting insecure code, ciphers, safe string handling, a real login system, phishing awareness, log analysis, and file integrity checks.
🌳 Level 3 — Advanced: Defensive Coding Capstone
What you'll build
This level reuses Beginner's full curriculum — password strength and hashing, input validation, spotting insecure code, ciphers, safe string handling, a real login system, phishing awareness, log analysis, and file integrity checks.