Brazilian digital asset platform Mercado Bitcoin announced it will absorb the $40 million deficit resulting from Monday’s security breach, assuring that clients will face zero financial harm.
The exploit siphoned assets out of its hot wallets spanning a minimum of 10 different blockchains, prompting Mercado Bitcoin to halt platform availability temporarily as a safety measure.
Although security analysts initially estimated the theft at upwards of $40 million, Mercado Bitcoin stated that approximately $38 million was taken and that $11 million has already been locked down with assistance from Tether, Circle, and Chainalysis.
The trading platform noted that zero user information was compromised and that staff members are actively probing the incident, tracking the funds, and collaborating with law enforcement.
This incident occurred just days after malicious actors made off with over $6 billion from Binance, which restarted withdrawals on Sunday. The FBI pointed to North Korea’s TraderTraitor collective as the perpetrator of that breach, marking it as the biggest cyberattack in digital asset history.
Originally published at https://www.coindesk.com/business/2026/11/03/mercado-bitcoin-pledges-to-cover-all-user-losses-after-near-usd40-million-hack.
