Politics with Michelle Grattan: Rory Medcalf on Australians’ Growing National Security Fears

Why It Matters

Rising public fear forces policymakers to prioritize hybrid threats and domestic resilience, reshaping Australia’s security agenda and budget allocations. The shift also tests traditional alliance structures and community‑level preparedness.

Key Takeaways

• Survey shows 64% fear national security risks (2026)
• AI attacks seen as most likely five‑year threat
• Foreign invasion rated most catastrophic, 45% see risk
• Youth terrorism concern rose from 22% to 55%
• Trust in US‑Australia alliance perceived declining

Pulse Analysis

The ANU National Security College’s three‑wave survey provides a rare longitudinal snapshot of Australian sentiment as the nation grapples with an evolving threat landscape. By sampling over 20,000 citizens across 2024‑2026, the study captures a clear upward trajectory in perceived insecurity, driven largely by non‑military vectors such as AI‑enabled cyber‑attacks and supply‑chain fragility. These findings echo global trends where state actors and criminal networks exploit emerging technologies, prompting governments to broaden their defence portfolios beyond conventional forces.

Policy implications are profound. As younger Australians express heightened anxiety over terrorism and climate‑related disasters, legislators face pressure to allocate resources toward intelligence sharing, counter‑radicalisation programmes, and climate‑adaptation infrastructure. Simultaneously, the waning confidence in the US‑Australia alliance suggests a strategic recalibration, with Canberra likely to diversify partnerships and invest in autonomous capabilities. The "Trump factor" highlighted in the report underscores how foreign political dynamics can amplify domestic threat perceptions, reinforcing the need for clear communication and robust rule‑based order advocacy.

Nevertheless, the survey also uncovers a reservoir of civic willingness to contribute to security, with a strong majority endorsing collective responsibility after the Bondi attack. Harnessing this social capital could enable community‑based resilience initiatives, from neighbourhood watch schemes to public‑private cyber‑defence collaborations. For businesses, the data signals an urgent call to embed security considerations into risk‑management frameworks, especially around AI and supply‑chain continuity. In sum, Australia stands at a crossroads where heightened public concern can catalyze a more integrated, proactive security strategy that balances technological vigilance with societal cohesion.