John Christly is the former Chief Information Officer and Emergency Management Coordinator for the City of Hallandale Beach, where he directed critical response operations across cyber, natural disaster, and civil emergency scenarios.

He now serves as the Vice President of Commercial Services for OneZero Solutions, where he leads the strategy, growth, and execution of the commercial cybersecurity business across a diverse range of sectors including maritime, healthcare, energy, oil & gas, and financial services.

A FEMA-trained leader, John holds the Professional Development Series Certificate from the Emergency Management Institute and has completed courses including IS-100 (Introduction to ICS), IS-200 (ICS for Single Resources and Initial Action Incidents), IS-700 (NIMS: An Introduction), IS-800 (National Response Framework), ICS-300 (Intermediate ICS), and ICS-400 (Advanced ICS). These certifications equip him with advanced Incident Command System (ICS) and National Incident Management System (NIMS) competencies for leading coordinated, multi-agency responses.

John is also a Certified Information Systems Security Professional (CISSP), Certified Fraud Examiner (CFE), CMMC Certified Professional (CCP), Certified Anti-Terrorism Specialist (CAS), ISO 27001:2022 ISMS Lead Auditor, Registered DoD RMF Practitioner (RDRP), Lean Six Sigma Master Black Belt, and an FAA-licensed Drone Pilot.

With more than two decades of executive cybersecurity experience including roles as Global CISO, Municipal CIO, and CEO of a InfoSec/GRC consulting firm, he has led high-impact cyber incident responses, forensic investigations, and tabletop exercises across healthcare, government, and critical infrastructure sectors.