Over the course of just a few decades, the world has entered into a digital age in which powerful evolving cyber capabilities provide access to everyone connected online from any place on the planet. Those capabilities could be harnessed for the benefit of humanity; they might also be abused, leading to enormous harms and posing serious risks to the safety and stability of the entire world. Dan Efrony writes in Lawfare that a strategy of international cooperation is crucial to mitigate the threats of abuse of cyberspace, primarily by clarifying the “red lines” in the field of cybersecurity and determining how to verify and enforce states’ compliance with their legal obligations in the field.