The U.S. Division of Homeland Safety has been investigating Chinese language Bitcoin mining tools producer Bitmain as a possible risk to nationwide safety, in keeping with seven folks acquainted with the matter.
Unnamed sources advised Bloomberg {that a} federal investigation, led by the DHS and codenamed Operation Crimson Sundown, has targeted on the query of whether or not the agency’s mining {hardware} might be managed remotely for espionage functions, and even to undermine the U.S. energy grid.
This investigation has been carried out similtaneously inquiries by the Senate Intelligence Committee, which in July printed a report that concluded that Bitmain’s machines “might be compelled by the PRC to show over information in accordance with China’s nationwide safety regulation.”
The identical report additionally declared that Bitmain’s miners have “the aptitude to be remotely managed by Bitmain personnel in China,” citing a New York Instances article from October 2023 which reported on the invention of ‘backdoors’ in Bitmain tools way back to 2017.
Federal suspicion of Bitmain predates the present Trump administration, with then-President Joe Biden issuing an order in Could 2024 that prohibited MineOne Companions from working a mining facility near Francis E. Warren Air Power Base.
One of many major considerations underlying this disinvestment order was that MineOne Companions’ facility used “foreign-sourced” tools that offered “important nationwide safety considerations.”
Such considerations have remained beneath the present administration, although President Donald Trump’s two sons have hyperlinks to American Bitcoin, which agreed to buy 16,000 Bitmain machines this yr in a deal price $314 million.
Bloomberg’s report means that The Division of Homeland Safety’s investigation was complemented by discussions on the White Home’s Nationwide Safety Council, the place inquiries started beneath the Biden presidency and continued into “at the very least the early months of the Trump administration.”
Federal customs officers have additionally stopped and inspected Bitmain tools at U.S. ports on numerous events, whereas the federal investigation into Bitmain has thought of whether or not tariff violations might also be occurring.
Bitmain has rejected any claims that it could actually remotely management its machines, informing Bloomberg in a press release that it “has by no means engaged in actions that pose dangers to U.S. nationwide safety,” and that it has not obtained any info concerning any federal investigation into its merchandise.
Decrypt has reached out to Bitmain for remark and can replace this text ought to they reply.
Might miners be managed remotely?
Some mining consultants recommend that whereas U.S. safety considerations over foreign-made {hardware} are frequent to the broader tech trade, as within the case of Huawei, remotely controlling mining machines could be exhausting to do whereas remaining undetected.
“These machines are purpose-built to do one factor, mine Bitcoin, so a backdoor would primarily allow distant tweaks like switching swimming pools, altering settings, or turning items on and off,” stated Nishant Sharma, the founding father of mining consultancy and communications agency BlocksBridge.
Sharma advised Decrypt that, in massive information facilities, exterior interference could be “exhausting to cover,” as a result of operators intently monitor their facilities’ hashrate and community visitors.
He added, “And in contrast to PCs or GPUs, most miners in industrial fleets don’t have any Wi-Fi and really restricted interfaces, they’re pretty dumb units from a safety standpoint.”

