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Mark Dufresne currently serves as the Vice President of Detection Engineering at SentinelOne since February 2023. Prior to this role, Mark held the position of Director of Protections for Elastic Security at Elastic from October 2019 to January 2023. Mark's experience also includes serving as the Vice President of Research & Development and Director of Threat Research and Adversary Prevention at Endgame from October 2015 to October 2019. Before that, Mark was an Operations Manager at the National Security Agency, working there from January 2003 to October 2015. Mark Dufresne holds a Master of Science in Security Informatics from The Johns Hopkins University and a Bachelor of Science in Computer Science from the University of Minnesota.