About me
Joe Morrissey is a Director of the CSIRT at Nationwide, specializing in intrusion detection, network forensics, and incident response. His work focuses on strengthening security operations, improving detection and investigative capabilities, and preparing teams to respond effectively to sophisticated cyber threats.
He acts as incident commander in IR engagements and leads initiatives across threat response and security operations, with an emphasis on translating complex technical signals into actionable intelligence and decisive response. His expertise spans the investigation of network-based activity, adversary behavior, and high-impact security incidents, helping teams identify, contain, and learn from threats in real-world environments.
Joe is also focused on advancing operational readiness through practical playbooks, repeatable response processes, and the thoughtful integration of AI into cybersecurity operations. His work helps security teams build resilient, threat-informed defenses that improve IR readiness, accelerate investigations, and strengthen organizational preparedness.
