CyBOK Version 1.1 including all 21 knowledge areas is available to download. Read more about CyBOK 1.1

CyBOK – the next phase

CyBOK Version 1.1 including all 21 knowledge areas is available to download. Alongside CyBOK v1.1 there are a variety of resources to support the application and understanding of CyBOK.

For the community, by the community

Developed by 115 world experts

International effort

21 knowledge areas

Free to use for everyone

The Cyber Security Body of Knowledge

CyBOK is a comprehensive Body of Knowledge to inform and underpin education and professional training for the cyber security sector. The CyBOK project aims to bring cyber security into line with the more established sciences by distilling knowledge from major internationally-recognised experts to form a Cyber Security Body of Knowledge that will provide much-needed foundations for this emerging topic.

Practical Resources

Resources to apply to CyBOK

Resources and publications developed through funded projects.

Latest News

12th March 2025

Call for further funded projects to develop resources around CyBOK v1.1

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Guides

Supplementary Guides

CyBOK supplementary guides are typically developed for emerging or less well-established areas, or for a particular application area.

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CyBOK. For the community, by the community

Since 2017, more than 115 experts from across the world have committed energy into establishing this open and freely accessible resource. The Body of Knowledge codifies the foundational knowledge in cyber security for education and professional training. It is funded by the National Cyber Security Programme and supported by the UK Cyber Security Council.

CyBOK version 1.0 and associated resources were launched in October 2019 with 19 Knowledge Areas (KAs) following broad community engagement. In response to further feedback and input, the current version, CyBOK v1.1, was released in July 2021, expanding the framework with two new KAs: Applied Cryptography and Formal Methods for Security. CyBOK v1.1 remains the latest version available.

"Our team is made up of experts in cyber security, data privacy and human factor security, and we design learning packages for clients that attempt to increase their resilience, by making cyber less technical and more accessible. CyBOK powers our learning resources: it is an exceptional resource that allows us to tie our learning programmes to CyBOK knowledge."
Anonymous
"I just wanted to say that the research team I support working on the SWAN (Secure Agile Wireless Networks) EPSRC Prosperity Partnership were really impressed by the CyBOK document. We’ve been trying to make sure the team have a good grounding in cyber security as we move through the first phase of the project (we started in February), and the CyBOK document gave us a really excellent overview of the current body of knowledge out there. So thanks to you and your team for that."
Anonymous
"I think it's a fantastic resource and I use it to support my own understanding of cyber security and keep my knowledge up to date. The authorship reads like a Hall of Fame. I see it as the ultimate reference resource on cyber security - the Knowledge Trees especially, provide a really useful navigation tool and overview. I use the CyBOK as a primary resource in everything I do."
Rob Walker, University of Portsmouth