The Australian Security Intelligence Organisation (ASIO) is Australia's national security service.
ASIO's main role is to gather information and produce intelligence that will enable it to warn the government about activities or situations that might endanger Australia's national security.
The ASIO Act defines "security" as the protection of Australia and its people from espionage, sabotage, politically motivated violence, the promotion of communal violence, attacks on Australia's defence system, and acts of foreign interference.