GoKawiilMercado Bitcoin halts deposits after $40M drained via compromised hot-wallet keys
Brazil's largest crypto exchange, Mercado Bitcoin, suspended all deposits and withdrawals on Monday after wallets it controls sent over $40 million to attacker-controlled addresses across at least 10 blockchains. The company says it has contained the breach, found no customer losses or data leaks, and is working with law enforcement while tracing the funds.