Akiko, Cameron, Hamid, Maxine, and Sandy work at ASD. They all started in different years (1989, 1996, 2002, 2012, 2025). They each have a favourite
How well do you know coordinate systems? A well-known coordinate system is used for most of this puzzle, but a relatively new one (which doesn’t use
We’re looking for people with curious and creative minds who will bring new ideas and skills to our organisation. Decoding hidden messages, cracking
A secret message has been spelled out using national flags. Can you decipher the message and answer the question contained within it? What is
Coral, Steve, and Wendy work at ASD. Each of them speaks English and one other language. The languages are Balinese, Luganda, and Mandarin. The three
This is a cross-number puzzle. Clue numbers have been shuffled.Note that the numbers used in this challenge are from a constructed language (conlang),
Updated 07 Apr 2025
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The Australian Signals Directorate (ASD) is a vital member of Australia’s national security community, working across the full spectrum of operations required of contemporary signals intelligence and security agencies: intelligence, cyber security and offensive operations in support of the Australian Government and Australian Defence Force (ADF).