WHITEHAWK LIMITED — Board/Management Information 2026

Apr 6, 2026

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FOR IMMEDIATE RELEASE 7 April 2026

APPOINTMENT OF DIRECTOR – MR TONY VIZZA

Perth, WA and Alexandria, VA - WhiteHawk Limited (ASX:WHK) (“WhiteHawk” or “the Company”) is pleased to announce the appointment of Mr Tony Vizza as a NonExecutive Director of the Company, effective immediately.

Mr Vizza is a seasoned executive, admitted lawyer, and internationally recognised cybersecurity leader with over 25 years of experience spanning information security, privacy, technology risk, and AI governance. He brings a rare combination of deep technical expertise, legal acumen, and proven board-level governance experience.

Board and governance experience

Mr Vizza is the Managing Partner and Founder of Novera, a specialist advisory firm delivering cybersecurity, privacy, AI risk, and digital governance services across Australia. Novera has an existing Memorandum of Understanding with WhiteHawk for collaboration in the Australian and Asia-Pacific cybersecurity markets.

His governance experience includes service as a Non-Executive Director of the Australian Information Security Association (AISA), representing over 13,000 cybersecurity professionals across the country. He is a current member of the Executive Committee of the Australian Superannuation Funds Association (ASFA) Superannuation Cyber and Financial Crime Coordination (SC3) Framework, and of the Cybersecurity Committee of the Australian Bar Association. He has served as a Cyber Security Ambassador for the NSW Government since 2019.

Executive career

Prior to founding Novera, Mr Vizza was a Partner at KordaMentha, one of Australia’s most highly regarded professional services advisory firms, where he established and led the national cybersecurity advisory practice. Before that, he served as Director of Advocacy for ISC2, the world’s largest association of certified cybersecurity professionals, leading the Asia-Pacific advocacy function from Hong Kong.

Mr Vizza is a court-appointed independent expert with extensive experience in formal legal proceedings across Australian Commonwealth and State jurisdictions, encompassing data breach litigation, privacy disputes, electronic fraud, and complex technology matters.

WhiteHawk Limited Level 28 140 St George Tce Perth WA 6000 Tel : +61 8 6311 4636, Fax : +61 8 6311 4661 ABN: 97 620 459 823 www.whitehawk.com

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He has testified before the NSW Parliament Legislative Council Inquiry into Cybersecurity, participated in Commonwealth Government ministerial roundtables on matters of national cybersecurity significance, and delivered briefings on cybersecurity matters to the European Union, the United States Government, and the Australian Government.

Qualifications and accreditations

Mr Vizza holds a Global Executive MBA from the University of Sydney (which included study at Stanford University, the London School of Economics and Political Sciences, and the Indian Institute of Management, Bangalore), a Juris Doctor with Distinction from UNSW, and a Bachelor of Science in Computer Science from UTS. He is an admitted Lawyer and Solicitor of NSW.

His professional accreditations include Fellow of the Governance Institute of Australia (FGIA), Certified Information Systems Security Professional (CISSP), Certified Cloud Security Professional (CCSP), Certified Information Security Manager (CISM), Certified in Risk and Information Systems Control (CRISC), and Certified Information Privacy Professional, Europe (CIPP/E). Tony is also an ISO/IEC 27001 Senior Lead Auditor.

Recognition

Mr Vizza was a finalist for Cyber Security Professional of the Year at the Australian Cyber Security Awards in both 2025 and 2026, and was named on the Dean’s List, Faculty of Law and Justice, UNSW in 2024.

Comments

Ms Terry Roberts, Executive Chair and CEO, said: “We are delighted to welcome Tony to the Board. His combination of deep cybersecurity expertise, governance credentials, and standing in the Australian market is exactly what the Company needs as we transition to Australian-based leadership. Tony’s appointment reflects the Board’s commitment to strengthening governance and positioning WhiteHawk for its next phase of growth.”

Mr Tony Vizza said: “I am honoured to join the Board of WhiteHawk at this important time. The Company has a compelling cybersecurity and AI value proposition to offer the market. Coupled with a growing pipeline in both the US Federal market and the Asia-Pacific region and a product roadmap that will see some truly innovative solutions come to life, I look forward to working with the Board and management team to deliver value for shareholders.”

-ENDS-

This announcement has been approved by the Board of Directors and released by the Company Secretary.

WhiteHawk Limited Level 28 140 St George Tce Perth WA 6000 Tel : +61 8 6311 4636, Fax : +61 8 6311 4661 ABN: 97 620 459 823 www.whitehawk.com

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For more information:

Media inquiries (USA) Investor inquiries (AUS) WhiteHawk WhiteHawk COO Company Secretary Soo Kim Louisa Ho publicrelations@whitehawk.com investors@whitehawk.com +1 703 283 3208

About WhiteHawk

Launched with financing in 2018, WhiteHawk developed the first cloud, AI/ML based cyber risk monitoring, prioritization and mitigation online cyber security exchange, democratizing access for all companies and organizations to address their Digital Age Risks and those of their suppliers/vendors, continuously and cost-effectively. WhiteHawk’s 100% automated product lines include one-time or annual subscriptions for a Cyber Risk Program (one Enterprise), or Cyber Risk Radar (portfolio of Organizations or Suppliers) and virtual Cyber Consults tailored to Client Needs. Via the WhiteHawk online cyber security exchange, the Company also continuously vets and offers a breadth of next generation cyber risk and security solutions, enabling all businesses and organizations to take smart action against cybercrime, fraud, and disruption, for themselves, their clients and across their supply chains, on an ongoing basis with demonstrated time and cost savings. For more information, visit www.whitehawk.com.

WhiteHawk Limited Level 28 140 St George Tce Perth WA 6000 Tel : +61 8 6311 4636, Fax : +61 8 6311 4661 ABN: 97 620 459 823 www.whitehawk.com