Trainer Profile

David Lynas


David Lynas is a globally renowned Enterprise Security Architect, Security Strategist and Thought-Leader. Together with John Sherwood and Andy Clark, David is co-author and developer of the SABSA framework and is the world leading authority on the use and application of SABSA. With more than 40 years experience in information security, David has been invited to provide strategic advice to governments and industry clients on every continent including the Australian Electoral Commission and the Singapore Government, where he was the Lead in the AINSEP (Association of Information Security Professionals, subsequently AiSP) project.


In 2006 David was appointed as a Fellow of the British Computer Society (FBCS CITP) for “Exceptional leadership, eminence and seniority in the field of information security.” He is also the recipient of a Lifetime Achievement Award from the Computer Security Institute – the only professional from outside North America ever to receive this honour in CSI’s 33 year history. David is co-author of Enterprise Security Architecture: A Business-Driven Approach, widely regarded as the pre-eminent reference text for information security architecture professionals.

David has a strong and abiding passion for the information security profession. He is Founder and Chair of COSAC (, a premier global forum for innovation and leadership in the InfoSec profession. Now (2023) in its 30th year, COSAC is held annually each October as a 3-day residential program in Killashee House, just outside Dublin. In 2017, in response to strong antipodean demand, David inaugurated COSAC APAC, held annually in Melbourne.

David has also recently authored a brand new training program Transforming CISO Success, in which he brings to culmination the knowledge and insights gained and lessons learned from a lifetime in the profession.

David is in constant demand as a presenter and speaker and has delivered major presentations, key notes, and training programs on countless different aspects of Information Security, Strategy and Architecture around the globe.

  • David is a very dynamic presenter who is very obviously a subject matter expert. His knowledge of the space, ability to answer questions and his enthusiasm help to facilitate the learning. Really enjoyed this course. It was incredibly thought provoking and enjoyably philosphent.

    Face-to-Face Training, 2019

David Lynas

Excellent trainer - can't thank him enough!

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