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The Cyber Security Body of Knowledge (CyBOK)

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Version 1.0 of the Cyber Security Body of Knowledge (CyBOK) has been published by a team of UK academia working with expert authors and reviewers from around the world. There is a long-recognised skills gap within the cyber security sector and the purpose of CyBOK is to inform and underpin education and professional training for this sector.

This Body of Knowledge provides – for the first time – a mapping to established cyber security knowledge that already exists in literature such as textbooks, academic research articles, technical reports, white papers and standards.

The scope of the CyBOK is formed by 19 Knowledge Areas (KAs). This scope was decided on input from a wide international audience from academia and the profession, complemented with a number of recognised documents listing key cyber security topics such as the ISO/IEC 27032 2012 standard and the Certified Information Systems Security Professional (CISSP) certification, among many others.
The 19 Knowledge Areas (KAs) are grouped into 5 categories:

  • Human, Organisational & Regulatory Aspects
  • Attacks and Defences
  • Systems Security
  • Software Platform Security
  • Infrastructure Security

CyBOK Version 1.0 is available here. CyBOK is freely available and openly accessible under the Open Government License. The website also contains other resources such as Knowledge trees, webinars and podcasts, that complement the text and reference materials covered within the knowledge areas

CyBOK Version 1.0 © Crown Copyright, The National Cyber Security Centre 2019, licensed under the Open Government Licence: doc/open-government-licence/.


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