U.S. national security agencies are investigating Chinese technology firm Bitmain, the world’s largest manufacturer of Bitcoin mining equipment, over concerns its devices could be used for espionage or sabotage near critical American infrastructure.
The Department of Homeland Security (DHS) is spearheading the federal probe, known as “Operation Red Sunset.” It is examining whether Bitmain’s equipment poses risks of remote manipulation that could compromise essential systems, including the nation’s power grid.
The investigation involves inspecting chips and firmware in Bitmain machines seized at U.S. ports. Authorities are also evaluating potential violations of import tariffs and taxes.
Concerns first escalated last year following a New York Times investigation. That report highlighted Chinese-owned Bitcoin mining operations located near sensitive U.S. sites.
These sites included a Microsoft data center supporting Pentagon operations and an Air Force nuclear missile base in Cheyenne, Wyoming. Many of these mining facilities utilized Bitmain equipment.
A Senate Intelligence Committee report from July cited “disturbing vulnerabilities” in Bitmain equipment. The report suggested these devices could be controlled remotely from China, calling their use near sensitive facilities “an unacceptable risk.”
Bitmain, headquartered in Beijing, has strongly denied any involvement in risky activities. The company stated it “strictly complies with U.S. laws and regulations and has never engaged in activities that pose risks to U.S. national security.”
The firm also unequivocally called allegations of remote control capabilities in its products “false.” It attributed previous equipment detentions to routine Federal Communications Commission (FCC) reviews with no unusual findings.
The investigation takes on an added political dimension due to links with the Trump family. Last August, a fund backed by Donald Trump Jr. and Eric Trump acquired 16,000 Bitmain machines for $314 million.
The equipment was purchased for their company, American Bitcoin, which focuses on mining and accumulating cryptocurrency.
American Bitcoin conducted its own security tests and reported no detection of remote access vulnerabilities. A company spokesperson emphasized that it “takes national security and power grid stability seriously.”
Officials connected to former President Trump have dismissed any concerns regarding conflicts of interest related to the federal investigation.
“Operation Red Sunset” is part of a broader increase in scrutiny in Washington. U.S. officials are examining ties between Chinese cryptocurrency businesses and American security, set against a backdrop of escalating geopolitical tensions.
A previous federal review last year identified “significant national security concerns” related to the use of similar equipment near U.S. military bases. Experts are closely watching whether the current investigation will lead to new import restrictions or broader sanctions against Bitmain.