How to deal with the negative excesses of the Dark Web and other anonymity-granting technologies without harming those who use these tools for benign activities is one of today’s most pressing policy challenges. This conference gathers researchers, government officials, civil society activists and private industry experts to engage in constructive debate and dialogue. The conference will explore the topography and implications of Tor Hidden Services and debate the various ways in which online anonymity poses unique normative and policy challenges.