积塔半导体工程师在意大利被逮捕！

Group 1 - The arrest of Xu Zewei, an IT engineer at Shanghai Jita Semiconductor, in Italy has raised international concerns, particularly due to the involvement of U.S. authorities and allegations of hacking related to COVID-19 vaccine research [2][3]. - Xu is accused of being part of the "Hafnium" hacking group, which allegedly infiltrated the University of Texas's research systems in 2020, leading to multiple charges including computer fraud and identity theft [2][3]. - The timing of the arrest, coinciding with Xu's travel to Italy, which has an extradition treaty with the U.S., has sparked discussions about the motivations behind the U.S. actions and the implications for U.S.-China technology competition [3][4]. Group 2 - Shanghai Jita Semiconductor focuses on automotive chips and power semiconductor research and production, showing significant progress in domestic semiconductor replacement efforts [3]. - The company received substantial state financing in 2023, and its technological achievements have been publicly patented, indicating a strong position in the semiconductor industry [3]. - The incident is viewed as part of the broader context of U.S. "long-arm jurisdiction" policies, which have previously targeted Chinese tech professionals abroad under the guise of national security [3].