Contact DSD
Defence switchboard: 1300 DEFENCE (1300 333 362) toll free
Request DSD Cyber and Information Security Advice and Assistance
Government Sigint enquiries
- Phone 1800 SIGINT (1800 744 468)
Government ICT security enquiries
- Urgent and operational government ICT security enquiries
- Report a cyber security incident
- Phone 1300 CYBER1 (1300 292 371) and select 1 at any time
- Non-urgent and general government ICT security enquiries
- Ask for advice or assistance on the OnSecure website. Australian Government-sponsored customers who do not have one should apply for an OnSecure account.
- Phone 1300 CYBER1 (1300 292 371) and select 2 at any time
- Email: dsd.assist@defence.gov.au
- Fax: (02) 6265 0760
DSD careers
- General recruitment: PSS.GenRecruitment@defence.gov.au
- Graduate recruitment (Altitude@DSD): IS.gradprogram@defence.gov.au
Media enquiries: Defence Public Affairs (02) 6127 1999
Website technical issues: IS.webteam@defence.gov.au
Postal address: PO Box 5076, Kingston, ACT, 2604




