Mercado Bitcoin wallets move $8 million in Ethereum

Wallets linked to the Mercado Bitcoin breach transferred about $8 million in Ethereum to new addresses on November 3, as investigators tracked the stolen assets and Tether froze more than $9 million linked to the attack. Blockchain analytics firm Arkham reported the transfers, which included a movement of about 2,900 ETH, valued at $6.52 million, alongside smaller transfers of 470 ETH and 200 ETH. Arkham’s update did not confirm that any of the Ethereum had been sent to Tornado Cash, a cryptocurrency mixing protocol. The ETH’s eventual destination remains unknown. The transfers followed a November 2 breach at the Brazilian exchange. Mercado Bitcoin said an attacker gained unauthorized access to one of its systems. The incident affected wallets across at least 10 blockchains and led the exchange to temporarily suspend deposits and withdrawals. The company said it had contained the incident and that customers suffered no harm or data breach. Chainalysis said it coordinated with Mercado Bitcoin, law enforcement and cryptocurrency issuers after the exchange reported the incident. It said investigators contacted law enforcement within 30 minutes of identifying addresses holding...