Philippa is the Managing Partner for Unit 42 in the JAPAC region. Unit 42 is a specialist team that offers cybersecurity consulting services, including Incident Response, Cyber Crisis Management, Defensive and Offensive Security, Threat Intelligence, as well as Strategy, Advisory, and Cyber Risk Management.

Philippa boasts over 20 years of experience in security, technology, and leadership. She has led cybersecurity teams and contributed to capability development in technology companies, security consulting, and governments. Throughout this period, she gained extensive international experience and insights, operating in regions such as Europe, the Middle East, Africa, the US, Hong Kong, Australia, and New Zealand. Furthermore, she possesses cross-sector experience, having worked with major organisations in financial services, technology, telecommunications, transport, manufacturing, energy, pharmaceuticals, higher education, and government. She has also served in prominent roles at both Australian and British security agencies and acted as an advisor for the UK's Centre for Protection of Critical National Infrastructure (CPNI).

Before joining Palo Alto Networks, Philippa was a Partner at PwC and served as the Australian Defensive Security Leader. She led engagements in complementary domains such as Cyber Risk Management, Privacy, and Operational Resilience.

Philippa holds a Master's in Information System Security with Distinction and has held industry certifications such as Certified Information Security Systems Professional (CISSP), Certified Ethical Hacker (CEH), GIAC Certified Intrusion Analyst (GCIA), Cisco Certified Network Associate Security (CCNA Security), and Global Industrial Cyber Security Professional (GICSP).