William MacArthur currently serves as the Director of Threat Intelligence at OPSWAT, following the acquisition of InQuest.net, where William held the same position from May 2019 to August 2024. With a strong background in threat analysis, William previously worked as the Threat Research & Intelligence Lead at InQuest.net and as the Lead Threat Intelligence Analyst at Fishtech Group, focusing on managed detection and response services. Earlier experience includes a role as a Threat Intelligence Analyst at RiskIQ, where William specialized in identifying and exposing various online threats, and a position on the CSIRT Response Team at GoDaddy.com, responsible for protecting enterprise environments and monitoring threats.
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