A man accused of carrying out cyberattacks on behalf of the Chinese government was extradited to the United States and could face more than a decade in prison if convicted.
The U.S. Justice Department last year accused Xu Zewei of working as a contractor for China’s Ministry of State Security in a series of cyberattacks. Prosecutors alleged that Xu and co-conspirator Zhang Yu targeted several U.S. universities in early 2020 to steal COVID-19 pandemic-related research.
They also allegedly hacked thousands of email servers running Microsoft Exchange beginning in March 2021 as part of a campaign that U.S. authorities attributed to a China-backed hacking group known as Hafnium, later Silk Typhoon.
Xu was arrested in Italy last year at the request of U.S. authorities. His lawyer in Italy, Simona Candido, said Xu was extradited to the United States on Saturday and is being held in Houston. The Federal Bureau of Prisons website listed a man with the same name at the Federal Detention Center in Houston.
After the story was published, the Justice Department announced Xu’s extradition in a press release.
When it first announced the charges, the Justice Department said Xu worked for Shanghai Powerock Network, a Chinese company that prosecutors said “conducted hacking” for Beijing. Prosecutors alleged that Xu and other hackers reported their activities directly to Chinese state officials in Shanghai.
The Justice Department said Xu and Zhang were part of Hafnium, which allegedly exploited previously undiscovered security flaws in Microsoft Exchange servers to target American organizations including defense contractors, law firms, think tanks, and infectious disease researchers.
In 2022, Yanjun Xu was sentenced to 20 years in prison in what the Justice Department said was the first case in which a Chinese government intelligence officer had been extradited to the United States.