Stephanie Crowe was appointed Deputy Director- General Australian Signals Directorate (ASD) and Head of the Australian Cyber Security Centre (ACSC) in December 2024. Stephanie has an extensive background in cyber security working with government and industry on responding to nationally-significant cyber events and strengthening Australia’s cyber defenses. Over her 15-year career at ASD, Stephanie has held a number of key roles in signals intelligence and cyber security, including leading the ACSC’s Cyber Security Resilience Division, responsible for delivering technical programs, services and publications across government and industry, as well as enabling the uplift and hardening of critical networks. Prior, Stephanie led the ACSC’s cyber threat intelligence and incident management functions and designed programs to enhance Australia’s cyber security situational awareness, national threat picture and incident response capabilities. Stephanie has been involved in cyber security efforts supporting key national events such as e-Census, elections and G20, and in facilitating national exercise programs. She has also directed Government’s technical response to numerous nationally-significant cyber security incidents. Stephanie has a Bachelor of Asian Studies Specialist (ANU) which led to her to the ASD graduate program in 2009. Throughout her 15+ year career, Stephanie has performed various roles across ASD’s intelligence missions utilizing her expertise in operations management.