Chinese authorities have executed a former defense engineer for selling classified information about the J-35A stealth fighter jet to foreign intelligence agencies, according to an announcement from China's Ministry of State Security (MSS).
The engineer, identified only as Liu, worked as an assistant engineer at a prominent defense research institute focused on military aviation technology before his arrest. After being passed over for promotion, Liu began illegally copying and storing classified documents related to China's next-generation fighter program.
Financial troubles stemming from stock market losses and unauthorized loans reportedly drove Liu to seek profits through espionage. Over six months, he traveled internationally to meet foreign operatives and leak sensitive defense intelligence using sophisticated tradecraft methods to avoid detection.
MSS officials detailed how Liu employed multiple tactics including:
- Breaking down and cataloging sensitive documents
- Creating numerous online accounts for receiving payments
- Using disposable phones and SIM cards
- Operating under various aliases with encrypted communications
The case came to light after foreign handlers cut ties with Liu once they obtained key technical data at minimal cost. Rather than ceasing operations, Liu attempted to contact additional foreign intelligence agencies, triggering surveillance that led to his capture in a counterintelligence operation.
A Chinese court found Liu guilty of espionage and illegally transferring state secrets. He received the death penalty and permanent revocation of political rights, highlighting Beijing's hard-line stance on national security breaches.
The rare public acknowledgment of the case by the MSS follows widespread discussion on Chinese social media about potential compromises to China's advanced military aircraft programs. Through Liu's execution, Chinese authorities have sent an unmistakable message about the severe consequences facing those who leak classified defense information.