Brazilian crypto exchange Mercado Bitcoin has been hacked, with estimated losses reaching $46 million and continuing to grow. The exchange has paused withdrawals and deposits, stating that it has contained the security incident, customer funds and data are unaffected, and the withdrawal pause is a precautionary measure. Arkham analyst Emmett Gallic stated that the hackers are sweeping old deposit addresses and selling memecoins and altcoins, leading to continuously increasing losses. Mercado Bitcoin has published the wallet addresses of the stolen funds to assist in tracking.