Chinese Bitcoin mining hardware firm under investigation in US

Bitmain Technologies, a Beijing-based crypto mining rig firm, is under investigation over potential surveillance in the U.S.

Summary

• U.S. Federal agencies have launched an investigation into China-based Bitmain
• The investigation will look into whether its mining rigs can be used for espionage
• DHS is concerned about Bitmain’s machines operating near critical U.S. infrastructure

Despite a pro-crypto regulatory shift in the U.S., a mining hardware provider has found itself under investigation for national security risks. On Friday, November 21, reports came out that U.S. Federal agencies are investigating Bitmain Technologies over concerns of potential espionage.

Namely, the Department of Homeland Security, the Senate Intelligence Committee, and other agencies are investigating whether Bitmain’s ASIC devices have undisclosed capabilities that could allow remote access, data leakage, or sabotage.

Reportedly, U.S. officials became concerned about the clusters of Bitmain Bitcoin (BTC) mining machines operating near sensitive infrastructure. This includes power grids, military bases, energy facilities and other crucial infrastructure.

Bitmain devices seized at ports, torn apart

In July, a report from the Senate Intelligence Committee stated that Bitmain devices could be manipulated from China. The report also mentioned “several disturbing vulnerabilities” that these devices pose to the U.S.

Bitmain was also a target of “Operation Red Sunset,” a federal investigation to determine whether its machines could be controlled for spying or sabotage. The devices were also seized at U.S. ports and pulled apart to test them for malicious capabilities. Still, investigators would not say whether anything was found.

Bitmain said it’s “unequivocally false” that it can remotely control its devices from China. They also claim they are not aware of any investigation, including “Operation Red Sunset.”

Chinese surveillance has been a significant concern for U.S. officials for years. Notably, U.S. officials targeted TikTok, banning the app on government devices in 2022. In 2024, President Joe Biden signed a law that would force TikTok to sell its U.S. business or face a nationwide ban.