Arkham Reports $3.5B Bitcoin Theft from LuBian Mining Pool Uncovered

A crypto wallet linked to LuBian Mining Pool may have experienced the largest bitcoin theft ever, as reported by Arkham Intelligence. Key details include:

  • 127,426 BTC valued at $3.5 billion was stolen in late December 2020.
  • The breach has not been publicly acknowledged by LuBian or the suspected hacker.
  • LuBian was a major bitcoin mining pool, controlling nearly 6% of Bitcoin's total hash rate in 2020.
  • Over 90% of LuBian’s BTC holdings were drained on December 28, 2020.
  • An additional theft of approximately $6 million in BTC and USDT occurred two days later.
  • LuBian attempted to contact the hacker, sending OP_RETURN messages and spending 1.4 BTC across more than 1,500 transactions.
  • The vulnerability likely arose from a flawed private key generation algorithm.
  • The value of the stolen assets is now estimated at $14.5 billion due to bitcoin price increases.
  • The associated wallet is currently the 13th largest BTC holder tracked by Arkham.
  • Both the hacker and LuBian reportedly still control their BTC balances.

Arkham has published wallet trackers for both parties, but identities remain undisclosed.