Australian Signals Directorate director-general Rachel Noble, who announced the appointment on Friday, said Bradshaw had a great deal of experience in crisis management and incident response.
"[She] served as the Deputy Commander Maritime Border Command at the height of the people smuggling trade, as well as her current role as the deputy co-ordinator of the National Bushfire Recovery Agency,” Noble said.
“Cyber threats in Australia continue to increase in sophistication. Bradshaw has the proven experience to continue the ACSC’s commitment to ensuring Australia is the safest place to connect online.”
“I am delighted to be returning to the Defence Portfolio, bringing my crisis management experience, and domestic and international connections to this exciting role in ASD,” Bradshaw said.
“I look forward to working closely again with colleagues inside and outside the portfolio, and with the talented team in ACSC to acquit our important cyber mission.”
Also appointed was Linda Geddes who will become ASD's deputy director-general for Sigint Network Operations from 16 March.
Noble said Geddes would be a great asset to ASD "as she brings to this role her deep counter-terrorism and national security experience, including through her current role as the Commonwealth’s Counter-Terrorism Co-ordinator".
Geddes has previously held senior appointments in Home Affairs, the Department of Prime Minister and Cabinet and the Office of National Intelligence. She has also worked for the ASD, New Zealand's General Communications Security Bureau, and spent 11 years in the Australian Army.
“I am very excited to be returning to ASD. I have had the privilege of working in this great organisation twice before, both as a member of the Australian Defence Force and as a public servant, and I look forward to renewing old relationships and making new ones. I also look forward to working with director-general Noble once more,” Geddes said.