Les Bell has a long, varied and distinguished background in the IT industry as a cyber security consultant, writer, software developer, educator and international seminar presenter. Les also appears on Fox News as a commentator on cyber security. In a career spanning more than 30 years his interests have covered a wide range of topics including information security, operating systems, programming languages, software development and the Internet. 

Since the early 2000s Les’s focus has been on information security. He is a prominent member of the worldwide information security community where his specialties include probabilistic risk assessment, cryptography, protocols, analysis and formal methods. Les has been presenting CISSP training for ALC since 2005.  

As a consultant Les has worked on a variety of projects. His client list includes major banks and insurance companies, telecommunications agencies, government departments and computer multinationals.

In addition to his consultancy Les is very much involved as an educator. He has developed and personally presented a range of high-level courses on topics such as CISSP, Linux (Les is a Red Hat Certified Engineer), TCP/IP, Java and e-commerce in addition to his acclaimed courses on operating systems. His seminars have been presented to outstanding reviews in several countries around the world including Australia, New Zealand, Singapore, Malaysia, Indonesia, Hong Kong, China, UK and Ireland.

As a technical journalist Les has written many series of articles covering a wide range of topics including operating systems, programming languages and software development. He was Founding Editor of Your Computer magazine and Founding Editor of the international journal PC Support Advisor as well as being a regular contributor to journals such as PC User magazine.

In all his work Les brings to bear a hard-hitting and practical perspective. Rather than getting bogged down in theory for it’s own sake, Les’s objective and skill is to take a complex subject and explain it in such a way as to make it both understandable and useful.

Les is a also lecturer and tutor on information security at Macquarie University where he is currently in the final stages of a PhD working on probabilistic extensions to formal methods and tools for security-and safety-critical systems.

Les is renowned for his encyclopaedic knowledge and has no spare time.



“Les’s knowledge is amazing. His communication is perfect (which can be a real deal breaker for these courses if communication is poor).”
Solution Engineer, Cloud Services Provider, Sydney November 2017

“Concise. Essentially taken the subject and successfully condensed it into a more digestible subject. Appreciated the clear explanations and anecdotes.”
Systems Analyst, Big 4 Bank, Melbourne December 2017

“The trainer is very knowledgeable on all the topics discussed.”
IT Security Operations Manager, Vic Government, December 2017

“Thanks Les – you obviously know your stuff.”
Director, Advisory and Investment Firm, Melbourne December 2017

“Very thorough course. Expert trainer with great communication skills. Overall very happy.”
Senior Associate, Infrastructure Design and Engineering, Melbourne December 2017

“Les is a very experienced instructor who covered large areas in IT security.”
Senior Security Consultant, Computer Support & Services Provider, Sydney November 2017

“Well presented by a very knowledgeable instructor. Les maintained his energy throughout the 5 days.”
Director Professional Services, Management Consultancy, Sydney November 2017

“Thank you! The course was very relevant to my job and will help me in most aspects of my work.”
Cyber Security Analyst, Global Petroleum Company, Sydney November 2017