Australian National Security provides counter-terrorism information for businesses and individuals from the Australian Government.

http://www.nationalsecurity.gov.au...

http://www.nationalsecurity.gov.au/agd/www/nationalsecurity.nsf

The Australian Secret Intelligence Service (ASIS) is Australia's overseas intelligence collection agency. Its mission is to protect and promote Australia's vital interests through the provision of unique foreign intelligence services as directed by Government. Site includes legislation and recruitment information.

http://www.asis.gov.au...

http://www.asis.gov.au/

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. Site includes publications, media releases and careers information.

http://www.asio.gov.au...

http://www.asio.gov.au/

The Inspector-General of Intelligence and Security (IGIS) is an independent office which monitors the activities of Australia's intelligence and security agencies. IGIS was set up to provide independent assurance to the Australian government and people that the agencies: conduct their activities within the law; behave with propriety; comply with ministerial guidelines and directives; and have regard for human rights.

http://www.igis.gov.au...

http://www.igis.gov.au/

The Trusted Information Sharing Network (TISN) is a forum in which the owners and operators of critical infrastructure work together by sharing information on security issues which affect critical infrastructure.

http://www.tisn.gov.au...

http://www.tisn.gov.au/