CybersecurityBeginner
Pre-Security Path
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.
Free course on Harvard CS50
Certificate available on completion.
Open Course Premium versionCS50's Introduction to Cybersecurity is free on two paths. Harvard hosts the full course at cs50.harvard.edu/cybersecurity, with lectures and assignments open to anyone and no login needed. edX carries the same course and adds an optional verified certificate. Our 'Go deeper' button links to the edX listing, and we earn nothing when you enroll there: we are not in edX's affiliate program. This course is built for both technical and non-technical people, so you don't need a coding background to start. Learn it free on Harvard's site, or use edX if you want the certificate. It works well as a primer before deeper, hands-on security training like TryHackMe.
The course covers threats, authentication, networking, and system security across about 30 hours (source: cs50.harvard.edu/cybersecurity).
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 free Pre-Security learning path. Covers cybersecurity careers, basic networking, web fundamentals, Linux, and Windows. Designed for total beginners with no IT background.
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.