Free course on TryHackMe
TryHackMe's Pre-Security path is a structured track preparing you for serious cybersecurity work. You learn networking, command line, Windows and Linux fundamentals, and basic security concepts. The path is hands-on with interactive labs. It's designed as a foundation before diving into specialized security roles like penetration testing. After finishing, you understand the fundamentals that all security work requires. The main limitation: it requires TryHackMe Pro. Also, this is still foundational; advanced security certifications (CEH, OSCP) require more.
TryHackMe passed 5 million registered users in 2025 (source: help.tryhackme.com/en/articles/8469838-tryhackme-vs-competition).
TryHackMe's free Pre-Security learning path. Covers cybersecurity careers, basic networking, web fundamentals, Linux, and Windows. Designed for total beginners with no IT background.
CybersecurityBeginner
Harvard's introduction to cybersecurity for technical and non-technical audiences. Covers threats, authentication, networking, system security, and operational security. Free to audit; certificate available via edX.
CybersecurityBeginner
TryHackMe's flagship beginner path covering the breadth of cybersecurity: networking, web exploitation, cryptography, defensive security, and incident response. Mostly free with hands-on rooms.
CybersecurityBeginner
Microsoft Learn's path for the SC-900 certification. Covers security, compliance, and identity concepts, Microsoft Entra (Azure AD), and Microsoft security solutions. Free with an aligned cert.