The inquiry, dubbed "Operation Red Sunset," led by the Department of Homeland Security, reportedly examined whether the company's machines could be remotely manipulated for espionage or sabotage of critical US infrastructure. Bitmain denies these capabilities, but investigators have reportedly tested its equipment at ports and dissected chips and code to assess potential threats. The company's hardware has long attracted scrutiny. A 2017 Bitcoin Magazine report suggested Antminer devices contained code allowing remote shutdown, which Bitmain said was a theft-prevention feature later patched.
American Bitcoin Corp. (Nasdaq: ABTC), a Trump family-backed mining platform, has expanded its Bitcoin holdings to 3,865 bitcoin, adding 1,414 bitcoin since September through a combination of mining production and secondary market purchases. The Miami-based firm, which describes itself as "America's Bitcoin infrastructure backbone," said the latest accumulation includes coins held in custody and those pledged for miner purchases under its ongoing procurement deal with Bitmain.