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FBI Snares China Spy Using Tech
28 Feb
Summary
- An FBI agent hunted a Chinese spy using digital footprints.
- A GE engineer became a crucial double agent for the FBI.
- Advanced tech and a spy's resume led to the capture.

The FBI launched an investigation into Chinese intelligence officer Xu Yanjun, who was targeting GE's advanced jet engine technology. Special Agent Bradley Hull led the effort, utilizing digital footprints and developing a strategy to identify and apprehend Xu. A GE engineer, David Zheng, found himself at the center of the investigation after a trip to China led to his recruitment by Xu.
Hull recruited Zheng as a double agent, a risky but ultimately successful maneuver. Zheng provided critical information and assisted the FBI in building a psychological profile of Xu. This intelligence enabled the FBI to manipulate circumstances, leading Xu to agree to a meeting in Europe rather than China.
The breakthrough came with the acquisition of Xu's "spy CV"—an MSS cadre form—obtained through warrants targeting U.S. tech companies. This definitive proof of Xu's identity and career accelerated the investigation, transforming it into a high-speed operation.
Xu agreed to meet Zheng in Europe, believing Zheng to be a willing informant. The FBI orchestrated the meeting, leading to Xu's capture. This operation highlighted the critical role of digital evidence and human intelligence in modern counterintelligence efforts.




