China confirms espionage case: Engineer sentenced to death for leaking state secrets
China’s Ministry of State Security (MSS) has officially confirmed the espionage case involving Liu, a former defense engineer who was sentenced to death for leaking classified state secrets to foreign intelligence agencies. The case, which had been the subject of speculation on Chinese social media, was publicly acknowledged in a detailed statement by the MSS, outlining Liu’s espionage activities and the extent of the security breach.

Background and Motive
Liu, previously employed as an assistant engineer at a domestic research institute specializing in defense technology, had access to highly classified materials. According to the state-run Global Times, Liu became discontented after repeatedly failing to secure a promotion. This dissatisfaction led him to secretly copy and retain a significant volume of sensitive documents.
Following his resignation from the institute, Liu initially pursued a career in an investment firm. However, his financial situation deteriorated due to high-risk stock speculation and unauthorized credit withdrawals. Faced with mounting financial distress, he sought an alternative means of income—ultimately deciding to sell classified state secrets to foreign intelligence agencies.
Espionage Activities
Liu allegedly contacted foreign operatives and offered them access to classified military information in exchange for monetary compensation. To facilitate these transactions, he meticulously organized and fragmented sensitive documents, created a detailed inventory of the stolen data, and opened multiple online accounts to receive payments anonymously.
To avoid detection, Liu employed sophisticated counter-surveillance techniques. He used anonymous IC and SIM cards, frequently changed his communication methods, and adopted multiple aliases. Additionally, he utilized prearranged codes to communicate covertly with foreign intelligence handlers. Over six months, Liu traveled to multiple countries, reportedly compromising critical aspects of China’s defense strategies.
Despite his careful tactics, the foreign intelligence agency that initially purchased classified data from Liu severed ties with him after acquiring the information at a low cost. Undeterred, Liu refined his methods and sought to reestablish contact with foreign operatives. His persistent attempts eventually attracted the attention of Chinese national security agencies, which began monitoring his movements and communications closely. This extensive surveillance led to his eventual capture and arrest.
Legal Consequences and National Security Implications
Following a thorough investigation, Liu was convicted of espionage and illegally providing state secrets to foreign entities. In light of the severity of his crimes, he was sentenced to death, with lifelong deprivation of political rights. The MSS emphasized that this harsh penalty reflects China’s zero-tolerance approach to threats against national security.
Chinese authorities issued a stern warning, reaffirming their commitment to safeguarding sensitive information and maintaining strict vigilance against espionage. They reiterated that any attempts to compromise national security would be met with the harshest legal repercussions.
The FC-31 Stealth Fighter Jet: A Critical Asset
One of the most sensitive pieces of classified information Liu reportedly attempted to sell involved the FC-31 stealth fighter jet, a next-generation aircraft integral to China’s military modernization efforts. Designed for low observability and advanced combat effectiveness, the FC-31 plays a crucial role in China’s evolving air combat capabilities. The technological details surrounding this aircraft are considered highly sensitive, making the security breach particularly alarming for Chinese defense officials.
Conclusion
The case of Liu serves as a stark reminder of the severe consequences of espionage in China. His actions not only endangered national security but also demonstrated the risks associated with the unauthorized distribution of state secrets. The MSS’s decisive response underscores China’s unwavering stance on protecting its military and technological advancements from foreign threats. As geopolitical tensions persist, this case highlights the ever-present challenges nations face in securing their classified defense information against espionage and cyber threats.