Major General Marcus Thompson was born and raised in country Victoria. On graduation from the Royal Military College in 1988 he was allocated to the Royal Australian Corps of Signals. He served in a variety of command, regimental and Special Operations appointments including; Command of the 3rd Combat Signals Regiment, secondment to the Department of the Prime Minister and Cabinet (PM&C) as the Senior Advisor Defence Policy and Operations, Headquarters Special Operations as the Director General Special Operations Capability, and Commander 6th Combat Support Brigade.
Major General Thompson was appointed a Member of the Order of Australia in the 2014 Queen’s Birthday Honours List. He holds a Bachelor of Electrical Engineering with honours from the University of New South Wales, a Bachelor of Business from the Royal Melbourne Institute of Technology, a Masters Degree in Defence Studies from the University of Canberra, a Masters Degree in Strategic Studies from Deakin University, and a PhD in Cyber Security from the University of New South Wales.
Major General Thompson has held the appointment of the Deputy Chief Information Warfare for the Australian Defence Force since July 2017.