Cyberlium — Learn Cybersecurity & Ethical Hacking Online (Free)

Cyberlium is a global cybersecurity learning platform with 42 topics, hands-on labs, and structured paths from beginner to professional. Learn ethical hacking, penetration testing, CEH v13, OSCP-style skills, bug bounty, SOC, cloud security, and more — free to start.

Cybersecurity & Ethical Hacking Courses

Cybersecurity Fundamentals

Defensive foundations from hacker mindset to incident response — 6 modules, 35 lessons.

  • Introduction to Cybersecurity
  • The CIA Triad
  • Access Control & Identity
  • Encryption & Data Security
  • Privacy & Digital Footprint
  • Security Hygiene & Incident Response

Linux Fundamentals

Shell, permissions, and networking — 4 modules, 19 lessons.

  • Linux Introduction
  • Basic Commands
  • Users & Permissions
  • Networking Commands

Networking Basics

OSI, IP addressing, and protocols — 3 modules, 14 lessons.

  • OSI & TCP/IP Model
  • IP Addressing
  • Protocols

Privacy & Digital Safety

Protect your digital footprint — 3 modules, 13 lessons.

  • Digital Footprint
  • Secure Your Accounts
  • Safe Browsing

Scam & Phishing Protection

Spot and stop social engineering — 2 modules, 11 lessons.

  • Phishing Awareness
  • Modern Scams

Android Security

Mobile threats and hardening — 2 modules, 11 lessons.

  • Android Threats
  • Android Hardening

Python for Security

Scripting for security automation — 3 modules, 15 lessons.

  • Python Basics for Hackers
  • Networking with Python
  • Automation & Tools

Cryptography Basics

Hashing, encryption, and TLS — 3 modules, 15 lessons.

  • Hashing
  • Encryption Types
  • TLS & HTTPS

Ethical Hacking (CEH v13)

Recon, scanning, and exploitation — 5 modules, 27 lessons.

  • Hacking Methodology
  • Reconnaissance
  • Scanning & Enumeration
  • Exploitation Basics
  • Reporting

Web Security (OWASP Top 10)

Injection, XSS, and modern web attacks — 4 modules, 24 lessons.

  • Injection Attacks
  • XSS & CSRF
  • Authentication Flaws
  • Modern Web Attacks

Network Security

Defense, attacks, and secure protocols — 3 modules, 16 lessons.

  • Network Defense
  • Network Attacks
  • Secure Protocols

OSINT

Open-source intelligence gathering — 3 modules, 16 lessons.

  • People & Username OSINT
  • Domain & Technical OSINT
  • Advanced OSINT

API Security

REST, GraphQL, and OWASP API Top 10 — 3 modules, 14 lessons.

  • API Fundamentals
  • OWASP API Top 10
  • API Defense

Metasploit Framework

Exploitation and post-exploitation with MSF — 3 modules, 17 lessons.

  • Metasploit Basics
  • Exploitation
  • Post Exploitation

Wireless Hacking

WiFi and Bluetooth attack vectors — 2 modules, 11 lessons.

  • WiFi Security
  • Bluetooth & Other

Defensive Security Basics

Hardening, logging, and policies — 3 modules, 15 lessons.

  • System Hardening
  • Monitoring & Logging
  • Security Policies

Secure Coding

Build security into software — 3 modules, 15 lessons.

  • Secure Development
  • Authentication & Sessions
  • Code Analysis

Vulnerability Assessment

Scanning, CVSS, and reporting — 2 modules, 11 lessons.

  • VA Methodology
  • Tools & Reporting

Penetration Testing (OSCP Style)

Full-scope pentest from recon to report — 6 modules, 33 lessons.

  • Pentest Methodology
  • Information Gathering
  • Exploitation
  • Active Directory
  • Post Exploitation & Pivoting
  • Report Writing

Bug Bounty Hunting

Recon, bug finding, and paid reports — 4 modules, 22 lessons.

  • Getting Started
  • Recon for Bug Bounty
  • Finding Bugs
  • Writing Reports

Red Teaming

Adversary emulation and C2 operations — 4 modules, 23 lessons.

  • Red Team Fundamentals
  • Initial Access
  • C2 & Persistence
  • Lateral Movement

Malware Analysis

Static and dynamic malware investigation — 3 modules, 17 lessons.

  • Malware Types
  • Static Analysis
  • Dynamic Analysis

Reverse Engineering

Assembly, disassembly, and crackmes — 3 modules, 16 lessons.

  • Assembly Basics
  • Disassembly Tools
  • Cracking & CTF

Exploit Development

Buffer overflows, ROP, and PWN — 3 modules, 16 lessons.

  • Memory Corruption
  • Exploit Techniques
  • PWN CTF

Active Directory Attacks

Kerberos attacks and AD defense — 3 modules, 16 lessons.

  • AD Fundamentals
  • AD Attacks
  • AD Defense

Digital Forensics (DFIR)

Evidence handling and investigation — 3 modules, 16 lessons.

  • Forensics Methodology
  • Disk & Memory Forensics
  • Timeline & Network Forensics

Mobile Security

Android and iOS pentesting — 3 modules, 15 lessons.

  • Android Pentesting
  • iOS Security
  • Mobile Defense

Advanced Cryptography

Crypto attacks, PKI, and CTF challenges — 3 modules, 14 lessons.

  • Crypto Attacks
  • PKI Deep Dive
  • CTF Cryptography

SOC Level 1

SIEM, alert triage, and detection — 4 modules, 21 lessons.

  • SOC Fundamentals
  • SIEM & Log Analysis
  • Alert Triage
  • Common Attacks in SOC

SOC Level 2 & 3

Threat hunting and advanced SIEM — 3 modules, 17 lessons.

  • Threat Hunting
  • Advanced SIEM
  • Incident Response

Cloud Security

AWS, Azure, and container security — 3 modules, 17 lessons.

  • AWS Security
  • Azure Security
  • Container & K8s Security

AI Security

AI attacks, threats, and defense — 3 modules, 14 lessons.

  • AI Attack Vectors
  • AI-Powered Threats
  • Securing AI Systems

Threat Intelligence

IOCs, MITRE ATT&CK, and TI platforms — 3 modules, 16 lessons.

  • TI Fundamentals
  • MITRE ATT&CK Deep Dive
  • TI Platforms & Feeds

Incident Response

Plan, execute, and learn from incidents — 3 modules, 15 lessons.

  • IR Planning
  • IR Execution
  • Post Incident

Purple Teaming

Detection engineering and ATT&CK simulation — 3 modules, 15 lessons.

  • Purple Team Concepts
  • Detection Engineering
  • ATT&CK Simulation

DevSecOps

Secure CI/CD and infrastructure as code — 3 modules, 16 lessons.

  • DevSecOps Fundamentals
  • CI/CD Security
  • Infrastructure Security

GRC & Compliance

Risk, frameworks, and auditing — 3 modules, 14 lessons.

  • Risk Management
  • Compliance Frameworks
  • Security Auditing

ICS/SCADA Security

OT security and industrial threats — 2 modules, 10 lessons.

  • ICS Fundamentals
  • ICS Threats & Defense

Dark Web & Anonymity

Tor, opsec, and dark web monitoring — 2 modules, 9 lessons.

  • Tor & Anonymity
  • Dark Web for Defenders

Zero Trust Architecture

Never trust, always verify — 2 modules, 10 lessons.

  • Zero Trust Fundamentals
  • Zero Trust Implementation

Security Architecture & Design

Defense in depth and enterprise design — 2 modules, 10 lessons.

  • Security Architecture
  • Enterprise Security Design

Certification Prep Hub

Exam prep for top security certs — 5 modules, 20 lessons.

  • eJPT Prep
  • CEH v13 Prep
  • CompTIA Security+ Prep
  • OSCP Prep
  • CISSP Prep

Popular learning areas

Ethical hacking, penetration testing, web application security, OWASP Top 10, network security, Linux fundamentals, Python for security, cryptography, malware analysis, reverse engineering, Active Directory attacks, digital forensics, threat intelligence, incident response, GRC compliance, and certification prep (CEH, Security+, OSCP, CISSP).