William Buck

Profile narrative

William Buck is an Australian accounting and advisory firm headquartered in Australia. The firm provides accounting and advisory services to clients across various sectors. Its operations are primarily focused on the Australian market, though it has taken legal steps in New Zealand related to a recent incident, indicating a cross‑border presence. The firm serves businesses and individuals requiring professional financial guidance. It maintains core IT systems that support service delivery and client communications. The organisation’s service offering is positioned within the professional services industry.

William Buck distinguishes itself through a formal incident response capability, having activated a crisis management team and engaged external experts during a 2025 cyber event. The firm demonstrated resilience by keeping its core systems operational without service interruption while investigating unauthorized access. It promptly notified affected clients and reported the incident to the Australian Cyber Security Centre, relevant government bodies, and law enforcement. Additionally, it secured a precautionary injunction in both Australia and New Zealand to prevent dissemination of compromised data, reflecting a proactive legal and regulatory approach. These actions demonstrate the firm’s focus on risk management, client protection, and adherence to cybersecurity obligations. The firm maintains an incident response plan and a crisis management team that coordinates internal and external resources during emergencies.

Incidents

1 incident linked to this organisation.