Heimdal Security Blog

50+ Useful Cyber Security Online Courses You Should Explore [Updated]

Finding the best cyber security courses is incredibly difficult, so we wanted to make it easier to gain knowledge in this area. This is why we put together this list of 50+ cyber security online courses.

Use the links below to explore the cybersecurity resource you’re most interested in:

Free courses for regular users

Free and paid courses for small businesses

Courses for beginning an infosec career

Courses for advanced infosec professionals

Whether you’re a regular user wanting to be informed, someone looking to improve their career or own a small business, cyber security courses are the way you will learn how to protect yourself and your information online. We hope you will find these resources valuable because we will continue to update them periodically.


Free online cyber security courses for regular users

Cyber Security for Beginners

As the creators of the Heimdal suite of anti-malware products, we receive a lot of messages from users who want simple, straightforward explanations on cyber security terms and advice.

Here is a free, email-based online course comprised of 20 step-by-step lessons that will teach you how to secure your information and devices.

You can register and receive free lessons every 2 days, delivered straight to your inbox.


We’ve taken a few courses ourselves and found them to be amazing resources to ensure your data protection on a personal level.

Introduction to cyber security is well-structured and has great assignments. Cyber security: Safety at Home, Online, in Life offers 3 weeks of practical, guided training.

Udemy Cyber Security Guides and Resources

Udemy is a great platform for learning a lot of new skills. On the cybersecurity front, start with these 3 guides:

Canvas Network Introduction to Cyber Security

The Introduction to Cyber Security course is designed for students and enthusiasts wanting to learn the basics of cybersecurity, including standards and laws.

The only requirement is basic computer knowledge.

The Daily Security Tip

This is not a cyber security course per se, but it’s a fun way to understand online security and get the actionable tips to protect yourself online. Signing-up gives you a security tip every day, for a full year, delivered to your inbox.

Courses for small businesses

The Cyber Security Course for Small Business Owners

This course is developed by the Heimdal Security team in partnership with the London Digital Security Centre (LDSC).

This course has two parts. In it, you will learn the basics of cyber security for yourself, then the essential safeguards for your business. It includes protecting your clients’ data and adapting to the EU Data Protection Regulation, also known as GDPR, a new set of regulations that will affect companies around the world.

Leap Cyber Security 101 and 201

The 101 and 201 courses are free to learn, have research assignments and are pretty fast to complete.
They include information on things like frameworks for improving critical infrastructure cybersecurity,  secure DNS deployment, enterprise patch management technology and more.


This cyber security course is dedicated to small and medium enterprises and takes 6 hours total. It includes examples of famous cyber attacks like The Panama Papers and tools and strategies to avoid security incidents.

Cyberplanner by FCC.gov

The FCC.gov website offers a wonderful, self-guided course cybersecurity for small businesses. The tool allows you to pick what areas you want to improve on.

SBA Cybersecurity for Small Businesses

This is a self-paced training exercise that covers topics like best practices, the importance of data security and risk management methods.

Udemy Cyber Security for Small Business

This paid course is for absolute beginners in information security as it applies to running a business. It will include practical steps to avoid attacks, how to avoid ransomware and more.

Courses for beginning an infosec career

Free courses

Leap Cyber Security courses

The same 101 and 201 free courses we mentioned as useful for those owning small businesses could be great for your career.

As we said, they include information on things like frameworks for improving critical infrastructure cybersecurity,  secure DNS deployment, enterprise patch management technology and more. This means they can provide you with a lot of insight into organizations and cultures.


This intermediate course will be very appealing for those fascinated by hacking and can be done in less than a week.

We can also recommend the CompTIA Security+ for beginners and the Secure Coding micro-course, but you will find a lot of other great training materials there.


In the Open Campus section of this website you will find plenty of great free cybersecurity resources. We recommend the Ethical Hacking course, as it’s a great intro to those who want to start a pen-testing career.

Paid courses

Concise Courses

This platform offers a lot of cybersecurity training courses for most infosec career paths, from penetration testing to digital forensics.

Their security bundle has a fair price and offers a lot of internationally recognized certifications.


One of the most acclaimed courses available, SEC560 Network Penetration Testing and Ethical Hacking prepares you to conduct high-value penetration testing projects step-by-step and end-to-end. There is also a free demo available.

EC-Council Certificate Ethical Hacker (CEH)

The CEH is one of the best and widely known penetration testing  courses and has a lot of diverse modules.


The volume 3 of The Complete Cyber Security Course: Anonymous Browsing is really insightful for the future cyber security specialist. It focuses on protecting your online anonymity, detailing things like VPNs, proxies, and the Tor browser.

Of course, Udemy is one of the best platforms for learning new skills, so explore what they have to offer.

Experfy Training

A reader recommended this concise course on IoT cyber security concepts, knowledge that is now essential due to the meteoric rise of smart devices. It’s not a course for absolute beginners, but for executives, product developers and those who will be involved in IoT.

Courses for advanced infosec professionals

Free courses

ISIS Laboratory

This course was developed from the materials of NYU Poly’s old Penetration Testing and Vulnerability Analysis course.

MIT Open Courseware

Network and Computer Security and Computer Systems Security are both great options to consider for advancing your professional knowledge at no cost.


These training options include beginner, intermediate and advanced classes and they’re all FREE of charge! Subjects range from Android forensics to secure coding and vulnerability assessment.

Khan Academy

Intro to Cryptography is a great way to learn about code breaking and how cryptographic methods work.

Rapid 7

Metasploit Unleashed is an ethical hacking training course that will help you dip your toes in the waters of penetration testing for free. And you’ll also be able to make a charitable donation for a good cause, should you feel like it.


Cyber Security is an amazing resource of free online cyber security courses for professionals of various levels and experiences. You’ll be able to learn about social engineering, computer forensics, ethical hacking and more, just by investing your time and energy.


Coursera offers plenty of options, being one of the biggest MOOC platforms in the world. You can start with any of the courses we picked below, but you should also explore the course list according to your interest. Don’t forget to use the handy filters: categories, language, if it’s eligible for certifications or specializations and if the course is on demand.


A good selection of free courses for more advanced cyber security security professionals includes:

Georgia Tech College of Computing

Introduction to information security is presented as “a graduate-level introductory course in information security,” so you should be prepared for a structured way to learn a lot about the fundamental elements of information security.

Looking to get more info about this particular program? You can find it right here.

SANS Cyber Access

By taking this course, you’ll be able to explore the three fundamental areas of information security: Operating Systems, Networking and Systems Administration. You’ll consolidate both your skills and knowledge, so you can start whenever you’re ready.


An introduction to information security requires that you’re quite advanced in your knowledge of cyber security. The course focuses on the importance of cyber security in a business context, while also emphasizing its impact on the organization. Very useful for those who want to grow and reach higher ranks in their company’s cyber security department.

Concise Courses

These free cybersecurity courses will allow you to learn something new:

Want more training options? Concise Courses has them!

There will be 1 to 2 million cyber security job openings in 2018 and a need for 6 million cyber security analysts – what will do about this opportunity?

If you’re a cyber security professional, you’ll certainly agree with me when I say that:

Investing in your continuous development is essential!

So if you’re already set on spending some money (wisely) on a great training program, here is the list of courses we discovered:

Paid courses

Carnegie Mellon University, Software Engineering Institute, CERT Division

This amazing platform lists 3 major categories of courses:

CERT is a major institution when it comes to cyber security training, so you can fully rely on their resources to help you achieve your professional development goals!

SANS Institute

They also offer Online Security Training, so do check it out, because they’re as trustworthy as CERT in the field. You can take the course in various forms, from on-demand to live or through self study, whichever fits your way or learning best.


We have to mention them again because on Coursera you’ll find an entire specialization dedicated to Cybersecurity Fundamentals. You can earn the following knowledge and abilities:

The specialization is created and taught by professors and specialists from the University of Maryland, College Park, and also by industry specialists.

Canvas Network

Information Security and Risk Management: An Overview will help you become more aware of the legal implications of managing cyber security in organizations. Study topics include:

Learning Tree

From “Cyber Security for Management and the Boardroom” to “Cyber Security: Accessibility and Quality“, LearningTree offers a wide range of courses for infosec professionals.

You should take your time to read the course descriptions thoroughly before starting a course and see where they fit in your career path.

Stanford University

You can pick your favorite from various courses offered by this prestigious institution:

Know that these courses require advanced skills and knowledge to complete.

Security Tube

Security training online courses provides at least two interesting subjects to study:


Here you’ll find some very technical and very specific cybersecurity courses, such as:

These courses boast using real-world scenarios which will help you try your hand at situations that you can come across in your professional practice.

The Virus Doctor

Advanced Techniques for Virus Removal is a great course for those involved in the business of computer repairs and assistance. As technology evolves, more people will need help with identifying malware infections and mitigating their impact, so this course could help you improve your business.

Infosec Institute

As the name says, the Infosec Institute focuses on helping cyber security and IT professionals keep the extra-fast pace of the field they work in.

The list of live courses is very appealing, as you can see from the sample below:


More cybersecurity resources to follow!

I really hope that this list of cyber security online courses gives you a good starting point to finding exactly what you need to improve your knowledge and skills!

Do you have more insight?

If you have any recommendations, please send them in a comment below and I’ll be happy to add them to the list!

Are you new to MOOC (massive open online courses)?

Here is an article about Coursera, Udacity and edX will help you get a better picture of how you can explore them to your benefit.

This article was published by Andra Zaharia on May 17, 2016 and updated by Ana Dascalescu on February 9, 2018.

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