Justin Fier is a seasoned cybersecurity professional with over 20 years of experience, recognized as an expert in threat intelligence with a particular focus on industrial, critical infrastructure, and operational technology (OT) sectors. He currently serves as Head of Cyber Insights at Claroty, a cybersecurity firm specializing in protecting OT and industrial control systems from cyber threats. In this role, he leads efforts to analyze and disseminate insights on evolving cyber risks to industrial environments, emphasizing the intersection of cybersecurity and industrial Internet of Things (IIoT), advocating for proactive threat hunting and intelligence sharing. Prior to Claroty, he served as Chief Product Officer at Darktrace, an AI-powered cybersecurity company, where he oversaw product strategy and development, driving innovations in autonomous threat detection and response. His earlier career includes key positions at RSA (the security division of EMC, now part of Dell), where he contributed to global threat intelligence operations and incident response. Fier is a recognized thought leader who frequently speaks at conferences like Black Hat and RSA Conference and contributes to industry reports on cyber threats to critical infrastructure. His expertise has positioned him as a go-to advisor for governments and enterprises navigating complex cyber landscapes. His professional journey reflects a commitment to bridging the gap between information technology (IT) and OT security, amid rising concerns over nation-state actors and ransomware targeting industrial sectors. He has been involved in high-profile incident responses and has authored insights on topics like supply chain vulnerabilities and zero-trust architectures for industrial settings.