Nine–emdash Line

OpenAI disrupts PRC-linked influence operation 'Nine–emdash Line' targeting South China Sea and US politics narratives

OpenAI banned accounts linked to a previously unreported PRC-origin covert influence operation it named 'Nine–emdash Line', which used AI tools to generate regional influence content focused on the South China Sea, Hong Kong, and US politics. This is a primary-source threat disclosure from OpenAI's trust and safety team. The operation represents a documented case of AI-assisted state-linked information operations targeting geopolitically sensitive topics.