An effective biosecurity system is critical for the protection of Australia’s agricultural, forestry and fisheries exports, as well as our environmental assets – which are under increasing pressure from a changing climate and expanding international trade. While citizen science is the fastest growing source of biodiversity data in Australia, citizen science contribution to biosecurity is severely lacking. This is because engaging citizens is often seen as risky due to data quality concerns and trade sensitivities. Australia must make use of the global progress made in this area, by learning and adapting from a range of international approaches to be on the front foot of community-led surveillance.