Sean Metcalf is founder and principal consultant at Trimarc (www.TrimarcSecurity.com) a consulting company which focuses on improving enterprise Active Directory security. He is one of about 100 people in the world who holds the Microsoft Certified Master Directory Services (MCM) certification, is a former Microsoft MVP, and has presented on Active Directory attack and defense at Black Hat, BSides, DEF CON, DerbyCon, Microsoft BlueHat, Shakacon and Walmart Sp4rkCon security conferences. He currently provides security consulting services to customers and regularly posts interesting Active Directory security information on his blog, ADSecurity.org.
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