Cybersecurity + Pure Mathematics
Implement classic ciphers and break them
Write Caesar and substitution ciphers, then crack them with frequency analysis.
- Easy
- 2–7 days
- Free
606 projects · 13 streams · every class
Cybersecurity projects 8
Defensive security projects: passwords, encryption, safe coding and network basics, practised only on your own systems.
8 Cybersecurity projects
Cybersecurity · Web Security
Find and fix vulnerabilities in a deliberately weak web app
Run a training app on your own computer, find the classic flaws, then write the fixed code.
- Advanced
- 2–4 weeks
- Free
Cybersecurity · Authentication
Build a password strength checker
Score a password's strength, explain why, and estimate how long it would take to guess.
- Easy
- 2–7 days
- Free
Cybersecurity · Digital Forensics
Recover deleted files from a test drive
Delete files on a spare USB drive, image it and see what can be recovered and why.
- Intermediate
- 2–7 days
- Free
Cybersecurity · Secure Coding
Write a secure-coding checklist from real bugs
Study ten public security fixes in open-source projects and turn them into a review checklist.
- Intermediate
- 1–2 weeks
- Free
Cybersecurity + Systems and Cloud
Analyse your own home network traffic
Capture traffic on your own computer and identify which protocols and services it talks to.
- Intermediate
- 2–7 days
- Free
Cybersecurity · Authentication
Build a two-factor authentication demo
Add time-based one-time codes to a login page and explain how they are generated.
- Intermediate
- 1–2 weeks
- Free
Cybersecurity · Privacy
Audit your digital footprint
Find what is publicly visible about you online and tighten your privacy settings.
- Easy
- 2–7 days
- Free
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