Thomas Weir Pauken II, 51, an American citizen who lived and worked in the People’s Republic of China (PRC), was sentenced today to two years in prison and 36 months of supervised release with no overseas travel for acting as an agent of a foreign government within the United States.
“Pauken exploited his U.S. citizenship and corresponding ability to travel to the U.S. without restriction in order to support Chinese Ministry of State Security (MSS) operations, recruiting, and gathering of sensitive information from potential assets,” said Assistant Attorney General for National Security John A. Eisenberg. “Pauken betrayed his country for money. The National Security Division is committed to holding accountable anyone who aids or abets Chinese espionage efforts.”
“Thomas Pauken knowingly assisted a foreign adversary in actively subverting the government of the United States for his own financial gain,” said First Assistant U.S. Attorney Theophani K. Stamos for the Eastern District of Virginia. “This was not an isolated act; Pauken continued his course of conduct to aid China for seven years. It is unconscionable that an American citizen would not only undermine the interests of the United States, but also facilitate others in doing so.”
“Thomas Pauken admitted to working at the direction of China’s Ministry of State Security to attempt to infiltrate U.S. political circles while also providing new recruitment targets for his Chinese handlers,” said Assistant Director Roman Rozhavsky of the FBI’s Counterintelligence and Espionage Division. “This case illustrates the lengths to which the Chinese Communist Party will go to undermine our democratic institutions, and it also demonstrates the FBI’s resolve to defend the homeland from threats to our national security. The sentencing provides a clear warning: anyone operating as an agent of a foreign government against the U.S. will be found by the FBI and held accountable.”
According to court documents, from at least 2019 until February 2026, Pauken worked at the direction and control of people he knew worked for the PRC, including a person he met in 2017 identified as “Cathy.” Cathy provided Pauken with taskings, including meeting with potential intelligence assets, providing them with devices such as a laptop and cellphone to communicate with Cathy, providing taskings for the assets on what information was required, and providing Cathy with reports from the assets.
Pauken received at least $100,000 for his work with Cathy. Cathy also paid for Pauken to travel several times between 2019 through 2025 from China to meet with individuals in the United States who could provide Pauken, and ultimately Cathy and the MSS, with information.
Pauken worked for two other people in China whom he met in 2017 and knew as “Richard” and “William.” They told Pauken that reports he wrote for them went to Japan, but Pauken believed they worked for the PRC government.
Pauken also sold reports to a group of Chinese individuals from Wuhan who sought information about technology and the U.S. Department of Justice. The Wuhan clients wanted Pauken to find an expert to help them engage in cyber espionage.
The FBI’s Philadelphia Field Office investigated the case with the assistance of the FBI Washington Field Office.
Assistant U.S. Attorney Gavin R. Tisdale the Eastern District of Virginia and Trial Attorney Eli Ross of the National Security Division’s Counterintelligence & Export Control Section are prosecuting the case.
