Cian O'Reilly is a Cyber Security professional based in Ireland, currently serving as a Principal Security Engineer at Oracle since 2025. Previously, Cian worked as a Senior Security Analyst at Personio and held the position of Security Engineer IV at Novacoast. Cian has extensive experience in detection and response, having contributed significantly to Oracle's Tier 3 SecOps Team and leading various detection engineering initiatives. Cian earned a Master of Science in Cybersecurity from Cork Institute of Technology and an Honours Bachelor Degree in Mobile Communications & Security from the University of Limerick.
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