The U.S. Justice Department announced on Aug. 26 that it seized domains used by two hacking platforms, QScan and QTRouter, linked to a Chinese operation that targeted the Justice Department, NASA, the Federal Reserve, the Senate and other agencies. The department said the platforms were operated by Nanjing Xinjiuwei Network Technology Company, which it said provided services to China's Ministry of State Security and the People's Liberation Army. A Chinese embassy spokesperson said the government opposes cyberattacks and accused the United States of using cybersecurity accusations to discredit China. An affidavit filed in U.S. court identified the Department of Energy, the Department of Health and Human Services, the National Institutes of Health and four unnamed U.S. and South Korean companies as victims. The affidavit indicated that the intrusion attempts began at least in 2018. In August 2019, the hackers attempted to breach NASA networks by exploiting a VPN vulnerability. In September 2024, they conducted intrusions at three unnamed Energy Department laboratories, the NIH, an HHS agency and a U.S. security device manufacturer. A joint advisory from the FBI, NSA and Cyber National Mission Force detailed additional attempts, including successful data theft from defense contractors, financial institutions and universities in May 2024, and unsuccessful attempts to access the Senate and a hospital in March 2026. The Justice Department did not provide further details, and the Department of Health and Human Services referred questions to the DOJ. A Chinese embassy spokesperson said the Chinese government "firmly opposes and combats all forms of cyberattacks in accordance with the law" and characterized the U.S. action as an attempt to "smear or discredit China" and to "impose discriminatory restrictions on Chinese companies." The case highlights ongoing concerns about state-sponsored cyber espionage targeting U.S. government and private sector networks.