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 postsWhy I still take on cyber security consulting work in Townsville, outside the day job
I work as a cyber security consultant for small businesses, charities and community organisations around Townsville through Suburban Secure — here's why, and what that actually involves.
Queensland is paying for cyber security and AI training right now — here's what's actually on offer
A $11.5 million Queensland Government program is funding free AI, cyber security and procurement micro-credentials through UniSC, and TAFE Queensland already runs a separate free cyber security course. What's live now, what's coming, and who it's worth registering for.
Secure by design: the principles behind every good cyber security decision
Secure by design, least privilege, defence in depth and failing safely — the operating principles schools, charities and small businesses can use to make sensible security decisions.
Can they email as me? Building a free domain spoofing check
Why I built Can They Email As Me?, a free Australian tool that checks whether a domain has SPF, DKIM and enforcing DMARC protections against email spoofing.