Australian Signals Directorate (ASD) is an intelligence agency in the Australian Government Department of Defence based in Canberra. The agency is in charge of signals intelligence and information security in relation to Australia’s telecommunications, data and communication networks. It provides information security advice and services to Australian federal and state Government agencies. These include The Information Security Manual (ISM), the Essential Eight (a prioritised list of practical actions regarding security), and the Top 37 Strategies to Mitigate Cyber Security Incidents.