Joel D.

Joel D. is an Investment Partner at Andreessen Horowitz where he focuses on early-stage and first-money-in cybersecurity investing. He serves on the boards of Eclypsium (Board Observer) and Toka (Board Observer), and served as a Board Member at optimyze (2019–2021). He has invested in companies including Eclypsium, Toka, optimyze, Lumos, and Truffle Security Co. Before Andreessen Horowitz, he was Box Security Officer at Box, Director of Cyber Intelligence and Threat Management at Citi, and Global Head Incident Management at Deutsche Bank. He studied at Stanford University and lives in Menlo Park, California, United States.