Mixin Network disclosed that hackers attacked the database of its cloud service provider in the early morning of September 23, 2023 Hong Kong time, causing losses of mainnet assets and prompting a temporary suspension of deposits and withdrawals. Follow-on blockchain analysis reported large flows from Mixin wallets into exploiter addresses, including ETH, BTC, USDT and DAI movements, with publicly shared estimates describing roughly $200 million in losses and at least $144 million still held by exploiter addresses at the time of analysis.