# Free Underground Courses To Learn And Master Ethical Hacking ⭐

**URL:** <https://onehack.st/t/free-underground-courses-to-learn-and-master-ethical-hacking/308989>\
**Category:** Tutorials & Methods\
**Tags:** learning, hacking\
**Created:** [July 27, 2025, 9:06pm UTC](https://onehack.st/t/free-underground-courses-to-learn-and-master-ethical-hacking/308989 "2025-07-27T21:06:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Aina](https://onehack.st/user_avatar/onehack.st/aina/32/167469_2.png) [@Aina](https://onehack.st/u/Aina)\
**Post date:** [July 27, 2025, 9:06pm UTC](https://onehack.st/t/free-underground-courses-to-learn-and-master-ethical-hacking/308989/1 "2025-07-27T21:06:24Z")

</div>

Free Underground Courses To Learn And Master Ethical Hacking ⭐

**Unlock rare access to powerful, lesser-known platforms offering 100% free ethical hacking courses** —perfect for students, tech enthusiasts, and cybersecurity beginners looking to build real skills without spending a dime.

 ![image](https://onehack.st/uploads/default/original/3X/0/b/0b50c5f6574a96cd051622390f7e5144d0891eac.jpeg)

Here’s a curated selection of platforms and resources offering **highly practical, zero-cost hacking education** for ethical and educational purposes:

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**1. [Cybrary](https://www.cybrary.it/)**  
**💡 What it is:** A specialized platform offering **free beginner-to-advanced courses** in cybersecurity, penetration testing, and network defense.  
**🔍 Highlight:** Look for their “Introduction to IT and Cybersecurity” and “CompTIA Security+” prep courses.  
**🧠 Bonus:** Includes hands-on virtual labs and career paths.

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**2. [Hacker101](https://www.hacker101.com/)**  
**💡 What it is:** A **completely free web security course** developed by HackerOne.  
**🎯 Focus:** Teaches real-world web vulnerabilities using Capture The Flag (CTF) style challenges.  
**⚔ Bonus:** Completing challenges can **earn invitations to private bug bounty programs**.

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**3. [OverTheWire Wargames](https://overthewire.org/wargames/)**  
**💡 What it is:** A legendary, free hands-on hacking lab that covers **Linux command line, SSH, file permissions, buffer overflows** , and more.  
**🎮 Structure:** Each “wargame” increases in difficulty and simulates real-world security challenges.  
**🛠 Best Start:** Begin with **“Bandit”** to build foundational skills.

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**4. [PortSwigger Web Security Academy](https://portswigger.net/web-security)**  
**💡 What it is:** An industry-trusted free academy by the creators of Burp Suite.  
**📚 What it covers:**  **XSS, SQLi, CSRF, SSRF, authentication flaws, and more** , paired with interactive labs.  
**🏅 Ideal For:** Web application security learners who want to master **offensive security** methods legally.

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**5. [MIT OpenCourseWare – Computer and Network Security](https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-857-network-and-computer-security-spring-2014/)**  
**💡 What it is:** A free archive of one of MIT’s most advanced security courses.  
**🧩 Includes:** Lecture notes, assignments, reading materials, and past exams.  
**🧠 Tip:** Ideal for **intermediate or advanced learners** familiar with computing concepts.

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**6. [TryHackMe – Free Rooms](https://tryhackme.com/)**  
**💡 What it is:** A gamified learning platform with **virtual hacking labs**.  
**📦 What’s free:** Many “rooms” and learning paths are completely free, including **Intro to Cyber Security** and **Pre-Security**.  
**🎮 Best For:** Beginners who enjoy **hands-on, CTF-style learning** with guided walkthroughs.

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**7. [Cisco Networking Academy – Cybersecurity Essentials](https://www.netacad.com/)**  
**💡 What it is:** Cisco’s nonprofit educational platform offering free access to **introductory cybersecurity training**.  
**🔧 Modules:** Covers threats, cryptography, risk management, and more.  
**📋 Requirement:** May need to sign up via an educational institution or local partner.

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**8. [DFIR Training Hub](https://www.dfir.training/)**  
**💡 What it is:** A community-curated archive of **digital forensics and incident response** courses, tools, and guides.  
**🕵 Best Use:** For learners interested in the **post-hack side of cybersecurity** : investigating breaches, memory forensics, log analysis, etc.

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**9. [SecurityTube](http://www.securitytube.net/)**  
**💡 What it is:** A free collection of **video-based tutorials** covering Metasploit, Wi-Fi hacking, assembly programming, and more.  
**🎥 Why it’s unique:** Focuses on niche topics often overlooked by mainstream platforms.

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**10. [OpenSecurityTraining](https://opensecuritytraining.info/)**  
**💡 What it is:** A treasure trove of **deep technical lectures** on binary exploitation, reverse engineering, and advanced system internals.  
**🧠 Level:** Mostly intermediate to advanced; ideal for learners looking to go **beyond basics**.

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**11. [Hack The Box – Starting Point Labs](https://www.hackthebox.com/starting-point)**  
**💡 What it is:** A free entry-level cybersecurity playground with **guided hacking challenges**.  
**📘 Focus:** Teaches key concepts like service enumeration, privilege escalation, and shell access.  
**🔥 Extra:** Labs simulate real-world scenarios to prep for real pentesting.

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**12. [EH Academy – Free Courses](https://www.ehacking.net/)**  
**💡 What it is:** Offers select **free cybersecurity courses** in ethical hacking, digital forensics, Wi-Fi cracking, and more.  
**🎓 Highlight:** Simple sign-up process and quick-start video lessons.

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**13. [Null Byte on Hackaday](https://null-byte.wonderhowto.com/)**  
**💡 What it is:** A **community-driven blog** with **step-by-step tutorials** in ethical hacking, cybersecurity tools, scripting, and exploit development.  
**🔧 Features:** Covers practical guides on **Kali Linux, Metasploit, Wireshark** , and more.  
**🧠 Ideal for:** Learners who prefer reading + experimentation.

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**14. [Blue Team Labs Online](https://blueteamlabs.online/)**  
**💡 What it is:** A unique **free platform for blue team (defensive) cybersecurity**.  
**🛡 Focus:** Learn log analysis, threat hunting, malware identification, and SIEM.  
**💻 Format:** Gamified labs, challenges, and real-world cyber incident simulations.

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**15. [PentesterLab – Free Badges](https://pentesterlab.com/exercises)**  
**💡 What it is:** A hands-on web security training platform with **select free exercises and badges**.  
**🎯 Focus:** Gain practical skills in **injection, command execution, web app vulnerabilities** , and more.  
**📈 Bonus:** Paid upgrades available but many **foundational labs are fully free**.

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**Final Tip:**  
To truly grow in ethical hacking, **consistency is key**. Schedule a regular learning routine combining theoretical courses and practical labs. Join community forums like [Reddit r/netsec](https://www.reddit.com/r/netsec/) or [Infosec Writeups](https://infosecwriteups.com/) to stay current and connect with like-minded learners.

These platforms offer **legitimate, accessible pathways into cybersecurity—without the high cost barrier**. Whether you’re aiming for certifications, job readiness, or passion projects, this rare combination of free resources is a goldmine.

## ENJOY & HAPPY LEARNING! ❤