19 of The Best Free Cyber Security Courses!

There are many online resources and courses available that can help you get started with entry-level cyber security jobs. Many of them are free. Let’s take a look at a few of the best free cyber security courses available:

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Cybrary offers a wide range of free and paid online courses and resources for people interested in cyber security, from beginner-level courses to more advanced topics.


Udemy has a several free online courses on cyber security, with options for different skill levels and interests. If you decide you like the instructor, you can move forward with their paid videos for an affordable price.

SANS Cyber Aces

This free program provides introductory cyber security courses designed for beginners and includes topics like networking, operating systems, and security concepts.


Coursera offers a variety of online courses on cyber security, including courses from top universities around the world.


edX is another online platform that offers a range of cyber security courses, from introductory courses to more advanced topics.

Cisco Networking Academy

This program provides free online courses in networking and cyber security, and also offers hands-on experience with industry-standard tools and technologies.

Khan Academy

Offers a variety of free online courses on computer science, including topics related to cyber security.

IBM Skills

Provides online courses on a range of technology topics, including cyber security.

LinkedIn Learning

Offers a variety of online courses on cyber security, with options for different skill levels and interests.

Cybersecurity and Infrastructure Security Agency (CISA)

This free, self-paced course provides training on cybersecurity concepts and practices.


While Codecademy doesn’t offer many cyber security courses, it does offer several free online courses on topics such as SQL that are worth taking a closer look.


While the OWASP repository isn’t a traditional training course, it does offer users the ability to review security testing guides, secure coding best practices, the famous OWASP Top 10 list, security cheat sheets, and other gold nuggets that you can use to teach yourself.

Microsoft Virtual Academy

Provides a variety of free online courses on Microsoft technologies, including cybersecurity.

Heimdal Security

Heimdal Security was created by the 2011 & 2012 Defcon World Champions and offers users who sign up 5 weeks of free cyber security training with a new lesson delivered every 2 days to your inbox.


A resource provided by Simplilearn contains several free online cybersecurity courses.

Sunny Classroom

No list is complete without listing perhaps one of the best YouTube channels available for learning networking and security concepts, Sunny Classroom!

Professor Messer

Perhaps one of the most well-known instructors in the field of cyber security is Professor Messer. His instructions provides hours of free instruction teaching A+, Network+, Security+, and more!

Certified in Cybersecurity

The Certified in Cybersecurity is a foundational cybersecurity certification designed to help recipients build a pathway to a career in cybersecurity. ISC2 will offer free exams and courses to the first 1 Million participants!


If anything else has been missed, NIST provides a good catchall for online learning courses. Some of them are free while others may be paid content. It’s definitely worth checking out!

These are just a few more examples of the many online resources and courses available for learning about cyber security. It’s important to research and evaluate different options to find the ones that best suit your interests and needs.

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by Amit Doshi

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