Rapid advancements in artificial intelligence (AI) and machine learning present both challenges and opportunities for terrorism and counterterrorism efforts. Violent extremists and other hostile actors can increasingly exploit emerging AI technologies to sow disinformation and exacerbate polarization, target humans and their information systems, manipulate data sets, and attack critical infrastructure. At the same time, the embrace of AI and machine learning by states in the service of counterterrorism has the potential to exacerbate concerns about profiling and human rights. This brief examines these threats and the ways that international organizations, including the United Nations, can and should protect against the misapplication of these technologies by states and nonstate actors alike.