┌─[Red Vault]─[Useful Resources]
$ Welcome to the curated list of free cybersecurity resources.
$ Level up your skills, hands-on and theory, with these hacker-approved sites.
$ All links open in a new tab. Stay sharp.
Beginner & General Learning
- Cybrary — Free courses on a wide range of cybersecurity topics.
- Hacksplaining — Interactive lessons on web security concepts.
- Codecademy: Intro to Cybersecurity — Beginner-friendly interactive course.
- Coursera Cybersecurity Free Courses — University-level courses (audit for free).
- edX Cybersecurity — Free university courses (audit mode).
- OpenLearn: Introduction to Cyber Security — Free course from The Open University.
- FutureLearn: Introduction to Cyber Security — Free UK-based course.
- Khan Academy: Information Theory — Understand the basics of information security.
Hands-On Labs & Practice
- TryHackMe — Guided, gamified cybersecurity labs (many free rooms).
- Hack The Box — Realistic penetration testing labs (free tier available).
- OverTheWire — Classic wargames for learning Linux, networking, and more.
- picoCTF — Free CTF platform for beginners and students.
- CTFtime — Track and join Capture The Flag competitions worldwide.
- Root Me — 400+ hacking challenges and labs.
- Hacker101 CTF — Free CTF platform by HackerOne.
- VulnHub — Download vulnerable machines for offline practice.
- AttackDefense — Free and paid labs for pentesting and defense.
- Pwn.College — Free Labs For Ethical Hacking and Exploitation
Web Security
- PortSwigger Web Security Academy — The best free interactive web security labs.
- OWASP WebGoat — Deliberately insecure app for learning web vulnerabilities.
- OWASP Juice Shop — Modern insecure web app for hands-on hacking.
- Hacker101 — Free web security classes and CTFs by HackerOne.
- Google XSS Game — Learn XSS by hacking a web app.
- PentesterLab — Free and paid web security exercises.
- BodgeIt Store — Vulnerable web app for testing.
Blue Team & Defensive
- CyberDefenders — Free blue team labs and challenges.
- SANS Cyber Aces — Free foundational blue team courses.
- Security Blue Team Academy — Free blue team learning resources.
- Blue Team Blog — Blue team tactics, tools, and guides.
- Malware Traffic Analysis — Practice analyzing real-world malware traffic.
- SOC Prime — Free detection content for SIEMs.
Reference & Reading
- HackerOne Knowledge Center — Bug bounty writeups and guides.
- Hacking Articles — Step-by-step guides on pentesting topics.
- HackTricks — The ultimate pentester's reference book (free online).
- Reddit: r/netsec — Security news and discussions.
- Reddit: r/cybersecurity — Community for cybersecurity learners.
- Exploit Database — Public exploits and vulnerability database.
- CVE Details — Search and browse CVEs.
- SecurityFocus — Security news, vulnerabilities, and mailing lists.
Certifications & Career
- CyberSeek Career Pathway — Visualize cybersecurity career paths and roles.
- Free Certification Training — List of free cert prep resources.
- LinkedIn Learning: Cybersecurity — Free with some library cards.
- EC-Council Student Resource Center — Free resources for students.
- CyberDegrees: Free Training — List of free training and cert resources.