In this joint open letter, 156 civil society organizations and 26 independent experts worldwide call on states to implement an immediate moratorium on the sale, transfer and use of surveillance technology. Alarmed by the Pegasus Project revelations that NSO Group’s spyware has been used to facilitate human rights violations around the world on a massive scale, the undersigned highlight the key human rights implications of this major exposé and issue a series of recommendations to states, as well as states that export surveillance technology.