UPDATE: Mercado Bitcoin hack continued post-containment with $391,000 lost
CIE News ·
Update to UPDATE: Mercado Bitcoin hacker swaps altcoins into ETH as total losses reach up to $49M
Based on reporting by CoinDesk; not yet independently confirmed.
A report finds that Mercado Bitcoin lost another $391,000 in an attack that continued hours after containment claims, involving addresses tied to BitMart.
The Mercado Bitcoin exploit continued for hours after the exchange claimed it had contained the security incident, resulting in an additional $391,000 being exfiltrated, according to CoinDesk. As previously reported, attackers targeted the platform's multi-chain hot wallets on November 2, 2026, leading to overall losses estimated between $38 million and $49 million. Blockchain analytics provider Bitquery linked addresses involved in the breach to the cryptocurrency exchange BitMart. Mercado Bitcoin previously halted deposits and withdrawals while industry partners assisted in freezing $11.2 million in related assets.
Key facts
- $391,000 drained post-containment
- Wallets linked to BitMart
- $38M to $49M total theft
- Deposits and withdrawals paused