Bitmain Probed By U.S. Authorities Over Security Concerns
Federal Investigation Examines Bitmain’s National Security Risks
Bitmain Technologies Ltd., the Chinese manufacturer known for producing the majority of Bitcoin mining machines worldwide, is currently under scrutiny in a federal investigation to determine if its products pose potential national security risks. This investigation, named “Operation Red Sunset,” is being led by the Department of Homeland Security and aims to assess whether Bitmain’s mining machines could be used for espionage or sabotage against critical infrastructure in the United States.
The company has denied these allegations, stating that its machines do not have the capability to be remotely manipulated for malicious purposes. However, investigators have reportedly conducted tests on Bitmain’s equipment at ports and have analyzed the chips and code to evaluate any potential threats.
Bitmain’s hardware has been under scrutiny in the past. In 2017, a report from Bitcoin Magazine raised concerns about Antminer devices containing code that could allow for remote shutdown, which Bitmain claimed was a theft-prevention feature that was later addressed. Similar concerns resurfaced in 2019.
Former President Joe Biden previously blocked a crypto mining facility near a nuclear missile base in Wyoming in May 2024, citing national security risks associated with foreign-sourced mining equipment. The Committee on Foreign Investment in the United States (CFIUS) expressed concerns that foreign mining devices near sensitive facilities could enable surveillance and espionage.
Bitmain has consistently asserted its compliance with US laws and has denied any connections to the Chinese government. The company has also stated that it was unaware of “Operation Red Sunset” or any related import investigations.
In January 2025, the Commerce Department blacklisted Bitmain’s AI affiliate, Sophgo Technologies, over alleged dealings with Huawei, further raising concerns about Bitmain’s ties to Beijing.
Bitmain’s Connection to the Trump Family
The investigation into Bitmain’s national security risks intersects with the crypto ventures of the Trump family. Eric and Donald Trump Jr. have invested in American Bitcoin, a company that recently acquired 16,000 Bitmain devices for $314 million, paid in Bitcoin, according to Bloomberg.
American Bitcoin plans to operate 76,000 mining machines in the US and Canada. The company asserts that its operations adhere to strict security standards and that Bitmain hardware does not pose a credible risk to the US power grid or national security.
This issue has garnered bipartisan attention, with a Senate Intelligence Committee report in July 2025 highlighting “disturbing vulnerabilities” in Bitmain devices and warning about the risks posed by facilities using these devices near power plants or military installations.
Republican Representative Zach Nunn has called for a CFIUS review of specialized chips in foreign mining hardware to evaluate broader policy implications.
As the US continues to monitor foreign crypto technology, this case underscores the delicate balance between the rapid growth of digital asset industries and national security concerns, particularly when prominent political figures are involved.
