Nicholas O'Sullivan
IT leader and cyber security professional in Townsville
I’m a Townsville-based IT professional with more than 15 years of experience across infrastructure, cloud platforms, education technology, cyber security, systems administration and practical technology leadership.
Professional focus
I focus on secure, explainable and maintainable technology: strengthening school technology foundations, improving cloud and identity governance, planning resilient infrastructure and helping organisations understand which technology risks and improvements matter most.
Technology leadership
Strategy, service delivery, infrastructure planning, documentation and practical risk management.
Cyber security
Identity, Microsoft 365, endpoint management, cloud governance and security-minded operations.
Infrastructure
Networks, servers, virtualisation, automation and maintainable systems for complex environments.
Recent articles
View all postsFive cyber security podcasts I keep coming back to
Five cyber security podcasts I recommend for current news, deeper technical discussion and lessons from the incidents that shaped the industry.
Asset security and identity: know what you have, and who can reach it
You can't protect what you haven't accounted for, and you can't control access to something you haven't classified. A practical look at asset security and identity and access management.
North Queensland Cyber Watch: ransomware hits Townsville Christian College
Townsville Christian College has confirmed a criminal ransomware attack breached its network in June 2026, potentially exposing sensitive student and family data — and offers a model for how a school should respond when it happens.
Townsville Computer Man is back — and yes, I started this in Year 12 with Notepad
Townsville Computer Man has relaunched with a repair-focused service. Here's the origin story: a 2009 business registered in my final year of school, and why it's back.