The objective of this report is to provide strategic guidance to tech companies, government policy makers, and solution providers in order to increase and improve investment into effective technical approaches that support platforms in tackling the terrorist use of internet services while respecting human rights. While stopping short of providing a detailed roadmap for development, this report aims to provide the overall framework for prioritization of effort given the complex nature of the terrorist threat and the challenges faced by tech companies in adapting to this threat and increased regulatory pressures from governments.