A significant data breach has exposed over 500 GB of sensitive documents from China’s Great Firewall, revealing the inner workings of its internet censorship system. This leak, considered the largest of its kind, provides insights into China’s digital surveillance mechanisms and highlights the export of its censorship technology under the Belt and Road Initiative to various countries. The breach raises concerns about the global proliferation of authoritarian surveillance capabilities and may impact China’s diplomatic relations, especially if human rights abuses are linked to its technology. This incident serves as a pivotal intelligence opportunity for understanding and countering state-sponsored internet controls.