Based on a brand new report from Bloomberg, federal authorities have quietly been digging into Bitmain, the Beijing-based bitcoin mining {hardware} manufacturing big, over fears that its units may function a backdoor for Chinese language espionage and even deliberate blackouts on the U.S. electrical grid. The Division of Homeland Safety is alleged to have been operating a secretive probe dubbed “Operation Crimson Sundown” for months, with brokers tearing aside imported machines at ports seeking hidden kill switches or remote-access tips.
The concern is these application-specific built-in circuit (ASIC) bitcoin mining computer systems, which are sometimes deployed in huge knowledge facilities close to power scorching spots that double as websites for navy bases, may theoretically be flipped from afar to spy on delicate areas or set off chaos in crucial infrastructure.
The investigation builds on years of purple flags, from a 2024 Biden-era block on a Bitmain-powered mining website too near a Wyoming nuclear missile base, to a bipartisan Senate Intelligence Committee warning this summer season about “disturbing vulnerabilities” in gear that may let Beijing pull strings remotely. Bitmain, for its half, is looking the entire thing nonsense, insisting there’s zero strategy to management its Antminer rigs from China, and that it’s by no means heard of any “Operation Crimson Sundown.”
In fact, fears of Beijing slipping backdoors into {hardware} have been prevalent for over a decade, with claims starting from Folks’s Liberation Military operatives forcing subcontractors to solder rice-grain-sized spy chips onto Supermicro server motherboards to Vodafone admitting it discovered hidden backdoors in Huawei telecom gear deployed throughout Italy. Simply this yr, studies surfaced of undocumented mobile modems lurking inside Chinese language photo voltaic inverters offered throughout Europe and the U.S., quietly pinging residence even when powered off, prompting frantic teardowns and emergency firmware nukes.
That mentioned, exhausting proof of intentional state-level sabotage oftentimes stays murky (or doubtlessly categorized).
Trump Household’s Enterprise Connection to Bitmain
The Bitmain investigation can also be fascinating from the angle of the Trump household’s seemingly-endless involvement within the crypto business. Eric and Don Jr. are knee-deep in a mining outfit known as American Bitcoin, and In August, the corporate snapped up 16,000 Bitmain units in a $314 million deal.
Of all of the Trumpworld crypto performs, this one at the least seems like simple mining reasonably than the pump-and-dump grifting or decentralization theater that’s frequent within the business extra usually. Different controversial crypto operations involving the Trump household embrace alleged corruption across the pardon of a former crypto alternate CEO, a doubtful memecoin, and the tokenization of a Trump-branded actual property improvement.
Regardless of the potentially-cleaner optics of working a enterprise that merely mines bitcoin, one has to surprise: How deep will a nationwide safety assessment of Bitmain go when the president’s children are actually powering their operation with {hardware} from the corporate?
That is Not the First Time Bitmain Has Been Accused of Hidden Capabilities
It’s additionally notable that Bitmain has already been accused of getting backdoors of their {hardware} throughout Bitcoin’s “block dimension wars” round 2017, when the neighborhood was tearing itself aside over the right way to scale the community. Just about your complete developer ecosystem and most customers have been rallying behind the Segregated Witness (SegWit) proposal; nonetheless, activation of this improve required 95% of miners to sign help.
Bitmain, whose AntPool managed an enormous chunk of hashrate, was a significant holdout in SegWit’s activation, as co-founder Jihan Wu pushed exhausting for a controversial exhausting fork to simply jack up the block dimension as a substitute, a transfer that risked splitting the chain and that the broader ecosystem largely rejected.
Supporting proof that Bitmain wasn’t simply ideologically against SegWit ultimately got here out, as they have been allegedly defending a secret sauce known as covert ASICBOOST, a sneaky optimization baked into their Antminer {hardware} that exploited a quirk in Bitcoin’s proof-of-work to shave as much as 30% off mining prices. It turned out that SegWit would kill that potential benefit.
Bitmain claimed this was a smear marketing campaign, however the harm was performed: it seemed just like the world’s dominant miner was keen to carry the community progress hostage for a aggressive edge. SegWit would ultimately discover its means into Bitcoin with out an hooked up hard-forking improve of the block dimension restrict.
Some months later, Bitmain confronted one other controversy within the type of Antbleed, which was a “function” (critics known as it a straight-up backdoor) in Antminer firmware that permit the corporate remotely shut down mining rigs. Bitmain claimed this backdoor was not added maliciously and ultimately eliminated it.
wen knots/chainalysis partnership announcement? they’ve fairly good tech for figuring out unsavory transactions.
— Kyle Torpey (@kyletorpey) November 18, 2025
These ghosts from Bitcoin’s previous maintain haunting the current, as a result of mining centralization stays a critical concern. Concepts like MIT’s outdated ChainAnchor proposal (a wild “bribe miners to solely embrace verified transactions” scheme that bought slammed as a permissioned takeover try and by no means occurred) are nonetheless on the market within the ether, and the latest controversy over the usage of transaction filters by nodes exhibits some Bitcoin customers are keen to undertake software program that doubtlessly opens the door to ideas that aren’t utterly dissimilar.
