Bitquery: Addresses Still Drained After Mercado Bitcoin Declared Attack Contained

深潮 TechFlow reported on Nov. 6 that, according to Decrypt, on-chain analytics firm Bitquery said attackers still drained customer deposit addresses associated with Brazilian exchange Mercado Bitcoin within nearly four hours after the exchange announced it had contained a security incident.

Bitquery found that on Nov. 2, a total of 36,042 Ethereum customer deposit addresses were drained, involving approximately $266,000; the firm traced approximately $48.6 million in assets stolen across 11 blockchains in the incident.

The report noted that Mercado Bitcoin's latest estimate of affected assets was approximately $36.3 million. Bitquery said the related outflows were directly authorized by the deposit addresses, suggesting the attackers may have controlled private keys or systems capable of signing transactions on behalf of the addresses.

Source: 深潮 TechFlow