John Joyner

Senior Director, Technology
 | 
Corsica Technologies

John is Senior Director of Technology at Corsica Technologies. Awarded Microsoft MVP for 18 years (2007-2026), he is currently dual-awarded in Azure Management and Cloud Security. He is a certified Azure Solutions Architect Expert and Microsoft Cybersecurity Architect Expert. John co-authored the four books in the industry-standard reference series, System Center Operations Manager: Unleashed (Sams publishing). His most recent book ‘Azure Arc-Enabled Kubernetes and Servers’ was published by Apress. Specialties include Microsoft Sentinel/Defender XDR, Security Copilot, Defender for Cloud, Defender for IoT, Azure Monitor, and Azure Arc. He is a retired U.S. Navy Lt. Commander who served as Chief of Network Operations for NATO southern region and national Network Security Officer for the Navy Bureau of Personnel.

John’s articles, books, and speaking engagements

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