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Welcome to ASD

ASD Declassified Tile

Promoted Article Title

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.

corporate plan image

Promoted Article Title

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 the Australian Government. Throughout 2020–21, ASD continued this critical work with success.

3TU machine intercept receivers

Promoted Article Title

No 3 Telecommunication Unit (3TU) was a RAAF unit which, in its 45 years of operation, received little publicity or acknowledgement. The unit performed specialist communications tasks in strategic and tactical support to the ADF both in Australia and overseas.