Australian Signals Directorate

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Who we are

ASD is a vital member of Australia’s national security community. We work across the full spectrum of operations required of contemporary signals intelligence and security agencies. This includes intelligence, cyber security and offensive cyber operations in support of the Australian Government and Australian Defence Force (ADF).

About ASD
ASD - REDSPICE - A blueprint for growing ASD's capabilities
ASD - REDSPICE - A blueprint for growing ASD's capabilities

REDSPICE

REDSPICE is the most significant single investment in the Australian Signals Directorate’s history. It is delivering forward-looking capabilities essential to maintaining Australia’s strategic advantage and capability edge over the coming decade and beyond.

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Careers

Discover a unique and rewarding career at ASD. You will do meaningful work, while being supported to learn and challenge yourself in an innovative working environment. At ASD, you will be part of something bigger. Together, we keep Australians secure.  

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Annual Cyber Threat Report 2025-25

Discover the top cyber threats and cyber security incidents affecting Australia.

Cyber Security Awareness Month 2025

Don’t get caught missing in action this Cyber Security Awareness Month.

ASD timeline

For 75 years, ASD has collected intelligence about foreign adversaries while keeping our own national secrets safe. Explore ASD’s history and trace its origins back to the Second World War, when Australian Navy, Army and Air Force personnel were brought together to intercept and decode radio signals.

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WRANS in the fileroom at FRUMEL. Image from National Archives of Australia (NAA 7648060)
WRANS in the fileroom at FRUMEL. Image from National Archives of Australia (NAA 7648060)

ASD stories

The Australian Signals Directorate has a rich history. ASD can trace its origins back to the Second World War then was formed as a peacetime signals intelligence organisation in Albert Park, Melbourne. To learn more about ASD’s roots and beginnings, read some of our stories.

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Photo of staff from the Defence Signals Bureau (as we were first named) from around 1953, around five years after the organisation was formed.
Photo of staff from the Defence Signals Bureau (as we were first named) from around 1953, around five years after the organisation was formed.

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Acknowledgement of Country icon

Acknowledgement of Country

We acknowledge the Traditional Owners and Custodians of Country throughout Australia and their continuing connections to land, sea and communities. We pay our respects to them, their cultures and their Elders; past, present and emerging. We also recognise Australia's First Peoples' enduring contribution to Australia's national security.

Authorised by the Australian Government, Canberra