Italy is moving to extradite Xu Zewei, the Chinese national arrested in 2025 at the request of U.S. authorities on cyber-espionage charges, Bloomberg reported.
The case stands out because it ties a single suspect, Xu, to cyber operations targeting sensitive research and major systems beyond the U.S. Authorities say he targeted universities and researchers working on COVID-19 vaccines, treatments, and testing between 2020 and 2021. Prosecutors also link him to a China state-backed hacking ecosystem, framing the activity as part of broader, politically motivated cyber operations.
In July 2025, Italian police arrested a Chinese national, Zewei Xu, at Milan’s Malpensa Airport on a U.S. warrant. Xu was arrested at Malpensa Airport on July 3rd after arriving on a flight from China. Authorities accused the man of cyberespionage, U.S. authorities linked him to the China-nexus group Hafnium (aka Silk Typhoon), which carried out attacks against U.S. government, including the US Treasury.
“Zewei Xu is wanted by the FBI for allegedly being part of a team of hackers that allegedly carried out espionage operations, particularly in 2020 on anti-COVID vaccines being produced at the University of Texas.” reported Italian news agency ANSA.
“Interior ministry documents said he is also accused of being part of a “large-scale cyber intrusion campaign orchestrated” by the Chinese government known as ‘Hafnium’, which “targeted thousands of computers around the world” to get information on “various U.S. government policies.”
The suspect’s family claims he is an innocent IT technician. His wife opposes his extradition, saying his Italian visa proves no wrongdoing and that he works as an IT manager at Shanghai GTA Semiconductor Ltd, developing systems and networks.
“Both my husband and I do not agree with extradition to the United States,” his wife told the Postal Police after the man’s arrest. “Him getting an entry visa to Italy should be a confirmation that we have not committed crimes, so I cannot understand the reason for my husband’s arrest.”
Italian police seized the documents and the devices of the suspect as requested by the U.S. authorities.
In broader terms, the Xu Zewei case shows how cyber espionage is increasingly handled through legal and diplomatic channels as well as technical defense. The extradition process is part of the response, but the deeper challenge is preventing these operations from succeeding in the first place. That means better patching, faster detection, stronger identity controls, and closer international coordination across Europe and the United States.
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(SecurityAffairs – hacking, China)
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