[Brazilian Crypto Exchange Mercado Bitcoin Confirms Security Incident, Temporarily Suspends Deposits and Withdrawals] Odaily reports that Brazilian cryptocurrency exchange Mercado Bitcoin has confirmed a security incident and temporarily suspended user deposits and withdrawals, stating that customer assets have not been affected. Previously, blockchain security company Hypernative detected suspicious transactions exceeding $40 million across multiple blockchain networks. According to local media BitNotícias, these unusual fund flows may be related to this security incident. (The Block)