Mercado Bitcoin hack continued hours after exchange said attack was contained, report finds
Source: CoinDesk ·
From the source
The same attacker took about $391,000, mostly from wallets Bitquery ties to BitMart, whose founder confirmed a Nov. 2 hack and suspects a link. Hackers continued stealing funds from Brazilian crypto exchange Mercado Bitcoin for roughly four hours after the company said it had contained the cyberattack, according to blockchain data. The attacker drained 36,042 customer deposit addresses on Ethereum between 12:27 and 16:56 UTC on Nov. 2, despite the exchange saying that day at 12:56 UTC that the breach had been contained, according to blockchain data platform Bitquery. The findings cast doubt on how fast Mercado Bitcoin brought the attack under control and suggest the hacker gained access to systems used to manage customer deposits. Mercado Bitcoin wasn't immediately available for comment. Bitquery traced $48.6 million in stolen assets across 10 blockchains, above the $40 million first reported. The exchange pledged to cover all user losses from the hack, and partners including Tether,…
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