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Welcome to ASD

ASD Declassified Tile

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ASD’s declassification program will proactively release archived holdings into the public domain. Read more about our activities through documents and records as they are declassified for public release.

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I want to take you on our 73-year journey about how we became the agency we are today.

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ASD defends Australia from global threats, and advances the national interest through the provision of foreign signals intelligence, cyber security and offensive cyber operations, as directed by Government. Throughout 2019–20, ASD continued this critical work with success.