Australia===Australian Security Intelligence Organisation

The Australia===Australian Security Intelligence Organisation (ASIO) provided the initial intelligence that led to the Australia===Australian Federal Police's (AFP) investigation. ASIO Director-General Michael Burgess has publicly stated that foreign interference is one of Australia's principal security concerns.

ASIO is a member of the WA joint counterterrorism team that classified the incident as a terrorist act. Their involvement highlights the national security implications of the event.

The Australia===Australian Security Intelligence Organisation (ASIO) recommended the ban on Hizb ut-Tahrir, having monitored the group for years and identifying its rhetoric as a pathway to violence. Their advice was crucial for the government's decision.

The Australia===Australian Security Intelligence Organisation (ASIO) is one of the intelligence agencies whose preparedness and response to a terrorist attack are being investigated by the Royal Commission. Dennis Richardson, a former head of ASIO, was advising on material from such agencies.

The Australia===Australian Security Intelligence Organisation (ASIO) had flagged Naveed Akram in 2019 but he slipped off their radar. The agency is now facing questions about whether they could have acted earlier to prevent the attack.