CoinSpot Hack

Reported loss $2.4M
Ethereum
Private Key Compromised (Unknown Method)

What happened

On Nov. 8, 2023, about 1,262 ETH (roughly $2.4M) left a hot wallet of the Australian exchange CoinSpot and went to an address outside the exchange's control. Etherscan also shows about 21 ETH arriving from a second CoinSpot-labeled wallet. On-chain investigator ZachXBT flagged the transfers that day, and CertiK called the incident a probable private key compromise affecting at least one CoinSpot hot wallet. No public source found for this draft includes a CoinSpot post-mortem confirming the cause or explaining how the key was exposed.

The receiving address, 0x326dc417d96c72349FA3d1fda4aE9C1c77FD89B8, turned the ETH into bitcoin. About 450 ETH was swapped for about 24 WBTC through Uniswap. Most of the rest, around 831 ETH, was converted to bitcoin through THORChain and other cross-chain routes, including one reported as Wan Bridge. The proceeds were then split across four Bitcoin addresses.

How it happened

  1. At 18:16 UTC on Nov. 8, 2023, the CoinSpot-labeled hot wallet 0xE4b3dD9839ed1780351Dc5412925cf05F07A1939 sent 1,262 ETH to 0x326dc417d96c72349FA3d1fda4aE9C1c77FD89B8 (tx 0x210ca8b12d1763307636982a0972437009ec7f65626db23c8b2b2a0a308bcf61). A second CoinSpot-labeled wallet sent about 21 ETH to the same address.
  2. The receiving address swapped about 450 ETH for about 24 WBTC through Uniswap's Universal Router.
  3. It moved most of the remaining ETH, around 831 ETH, to Bitcoin through THORChain and other bridge or swap services.
  4. The resulting BTC was spread across four Bitcoin addresses.

Protocol details

Classification Infrastructure / Key Compromise
Protocol Type CEX

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