Australian Signals Directorate Perth State Office

The Australian Signals Directorate (ASD), formerly the Defence Signals Directorate, is a statutory agency of the Government of Australia responsible for signals intelligence, providing intelligence support to Australian military operations, conducting cyberwarfare and ensuring information security. The ASD is a part of the larger Australian Intelligence Community, and its role within the so-called Five Eyes intelligence-sharing alliance is to monitor signals intelligence in South and East Asia. The Australian Cyber Security Centre (ACSC) is an agency within the ASD.