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. Further feedback and direct input was sought after this release, with CyBOK version 1.1 landing in July 2021, adding two new KAs: Applied Cryptography and Formal Methods for Security.

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CyBOK Twitter Page @cy_bok

We want CyBOK to be a valuable resource for all so if you have any comments or feedback, please do get in touch. contact@cybok.org

CyBOK versions 1.0 and 1.1 plus KAs for the purpose of education, training, course development and professional development.
Find helpful resources for different users including those developed through funded projects.
All the latest CyBOK related news, updates and events.

"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.

About CyBOK

An increasing political, societal and economic concern, cyber attacks cost an estimated $400 billion (according to Lloyds) to global economies. The scale of the issue was further highlighted recently when the Bulletin of the Atomic Scientists factored cyber attacks into their decision to move the symbolic Doomsday Clock closer to midnight.

However, there is a long-recognised skills gap within the cyber security sector, an issue that experts agree is compounded by a fragmented and incoherent foundational knowledge for this relatively immature field.

Mature scientific disciplines, such as mathematics, physics, chemistry and biology have long-established foundational knowledge and clear learning steps from pupils studying GCSEs at secondary school to undergraduate degrees at university, and beyond.

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Aims of the CyBOK project

CyBOK is a guide to the body of knowledge – the knowledge that it codifies already exists in literature such as textbooks, academic research articles, technical reports, white papers and standards. The project’s focus is, therefore, on mapping established knowledge and not fully replicating everything that has ever been written on the subject.

The CyBOK project team undertook an extensive exercise involving a mapping and analysis of relevant texts as well as a range of community consultations both in the UK and internationally via workshops, an online survey, interviews and position papers. These activities provided an in-depth understanding of the community’s collective view of the 19 top-level Knowledge Areas (KAs) that should be in the scope of CyBOK, and CyBOK v1.0 was released in October 2019.

Following community feedback and direct input after this release, two new KAs (Applied Cryptography and Formal Methods for Security) were produced, and one KA (Network Security) underwent a major revision; in July 2021, CyBOK v1.1 was published, with 21 KAs spanning five categories.

The current phase of the project focuses on dissemination and promotion of CyBOK, along with ongoing evolution and maintenance of the KAs and other materials, and consideration of the longer-term future of CyBOK. Our vision continues to be for CyBOK to become an established, internationally recognised resource for all the security community sectors (academia, industry and government).

Aims of the CyBOK project
The next phase of the project

The next phase of the project

The next phase of the project will focus on dissemination and promotion of CyBOK as well as liaison with the new UK Cyber Security Council and ongoing evolution and maintenance of the KAs. Our vision continues to be for CyBOK to become an established, internationally recognised resource for all the security community sectors (academia, industry and government).

The progress of Phase IV will be overseen by the CyBOK Executive Board which comprises the principal investigator and co-investigators. The project will be reviewed and advised by the CyBOK Steering Committee who will provide input to the overall progress and strategic development with regards to the cyber security profession.