Government Advisory

We offer governments strategic consulting on cyber security, and can help design and implement infrastructure to protect national and local governments, enabling them to respond to any threats in a proactive manner.


National Infrastructure

We can help create robust national infrastructure by providing security frameworks, training and security monitoring, and coordinating security testing with relevant government bodies. Our incident response solutions help contain and address any threats. We can additionally help with proactive techniques such as threat intelligence, helping to thwart attacks before they begin.


Heavy Industry

We understand how to protect the industrial control systems and associated infrastructure that heavy industry depends upon, and can design bespoke information security frameworks and provide incident response and recovery solutions.


Finance & Legal

Financial institutions are leading targets of cyber-attacks and espionage, offering cyber-criminals multiple avenues for profit through extortion, theft, and fraud. Our solutions for the defence of this sector range from security testing and monitoring through to digital forensics and threat intelligence.



Manufacturing is exposed to many cyber risks including intellectual property theft and counterfeiting of designs by competitors; these can cost huge sums in terms of foregone revenues. Our ‘Risk and Governance’ services help maintain control over research and development activities, our training helps manufacturers understand their risk profile and our security monitoring helps alert companies to any threats.



The public disclosure of personal medical records is the primary cyber risk faced by healthcare institutions. We help protect all such sensitive data by means of rigorous security testing and monitoring.


Retail & E-Commerce

Famous retail names are under constant threat from direct hacking, denial of service and fraudulent imitation, which costs them or their customers billions of dollars annually. Our solutions enable the creation of secure, monitored and robust transaction infrastructures incorporating testing, monitoring and incident response capabilities.

Meet the Team - John Powers

John Powers

Non-Executive Director
Senior Executive Advisor

John Powers is the Chief Operating Officer for Sentinel Executive, a Canberra based consulting firm focused on cybernetics, information operations and national security strategies. He is also an Associate Professor at the Australian Graduate School of Policy and Security and the Senior Fellow at Canberra University’s National Policy Institute.
John was commissioned in the US Army from The Citadel, The Military College of South Carolina. He is a graduate of the Ranger, Special Forces, Jumpmaster and Free-fall parachutists’ qualification courses. During his army career he commanded at every level from airborne-ranger reconnaissance platoon to brigade task force. He participated in direct combat operations in Grenada, Somalia, Bosnia, Kosovo, Iraq, and Afghanistan.
After being medically retired, John joined the US intelligence community. There he served in a variety of senior executive leadership positions to include leading the global intelligence operations centre, the special activities directorate and the financial and acquisition office. He also saw service in Iraq, Afghanistan, and Pakistan. His last posting before retiring from the US government was as the Chief of Intelligence Liaison at the US Embassy in Canberra, Australia.
John is recognized as a critical thinker, skilled negotiator, consensus builder, and strategist in the context of special activities, cybernetics, operational synchronisation, and security management. He has a Masters in National Security Affairs from Georgetown University and a MBA from the Massachusetts Institute of Technology.
A dual citizen of Australia and the USA, he resides permanently in Canberra and is an avid golfer, bush walker and gardener.