The Brazilian exchange Mercado Bitcoin paused deposits and withdrawals after wallets on at least 10 chains were emptied, days after the $6.3 billion Binance hack. CoinDesk
coindesk.com/business/2026/11/02/brazil-s-mercado-bitcoin-halts-wit…
Two large exchange thefts in one week: what, if anything, should we infer about how exchanges hold and secure customer keys?
