Helena Kastlova

Helena Kastlova is an attorney with over 20 years of experience practicing law across the United States and Europe, combining practical expertise with an academic and policy-oriented perspective. She is a Lecturer at Princeton University's School of Public and International Affairs, where she has taught a graduate-level course on data privacy in comparative perspective since 2019. The course prepares students for careers in public policy and governance by examining how different legal systems and cultural traditions approach privacy and data protection — and how those differences play out in practice. Helena also advises the European Data Protection Board as a member of its Support Pool of Experts. Her recent work for the EDPB includes reports on the extraterritorial enforcement of the GDPR (2024) and on international data protection enforcement cooperation (2025). Her broader research focuses on obstacles to effective privacy enforcement, tensions between data privacy and other social values, and the inadequacy of existing legal frameworks in the face of technological change.

Earlier in her career, Helena worked as a corporate legal counsel for a leading cloud computing company in Silicon Valley and as a transactional lawyer for White & Case in Prague. She holds law degrees from NYU School of Law, the University of Cambridge, and Charles University in Prague.