Arkham announced that the mining pool Lubian, based in China, was hacked in 2020 and that 127,426 BTC were stolen.

Arkham noted that neither Lubian nor the hackers have made any public statements about the hack incident to this day, stating that all of the stolen assets are still held on-chain.

127,426 BTC is equivalent to 15.5 billion dollars at the current price.