China’s cybersecurity agency has once again dismissed claims made by the U.S. and Microsoft that Chinese hackers were behind the high-profile cyberattack known as Volt Typhoon. In a report released on Monday, the National Computer Virus Emergency Response Center labeled these allegations as a “political farce” orchestrated by Washington. The report highlighted that over 50 global cybersecurity experts found insufficient evidence to conclusively link Volt Typhoon to Beijing.
*Volt Typhoon* was initially identified by Microsoft in 2023, and the U.S. government, along with its allies, issued warnings that a Chinese state-sponsored hacking group had been embedded within U.S. industrial networks for at least five years. This marks the third report from China’s cyber defense agency this year denying the allegations.
The latest report accused U.S. intelligence agencies of conducting extensive cyber reconnaissance and network penetration. It mentioned a tool called *Marble*, which allegedly removes links to developers and inserts misleading language strings, like Chinese and Russian, to frame other countries, including China.
Neither Microsoft nor the U.S. State Department responded to requests for comment regarding the report. Chinese officials have consistently denied the hacking allegations, instead accusing the U.S. of engaging in cyber operations of its own—though these claims have often lacked supporting evidence.
A prominent Chinese cybersecurity firm has publicly accused the U.S. of cyberattacks in recent years. In 2022, the firm claimed that the U.S. was behind a campaign targeting computers in 45 countries, including China. The Ministry of State Security in China has also stated that foreign forces have been increasingly stealing sensitive data from the country.
