Brazil’s Mercado Bitcoin Loses $40M In Security Breach Spanning 10 Blockchains

• Mercado Bitcoin experienced a security breach losing $40 million worth of assets.
• Assets were moved across multiple blockchains (10) to make tracking more difficult.
• Deposits and withdrawals were swiftly frozen by the exchange.
• Mercado Bitcoin, one of the largest exchanges in Latin America has lost $40M in assets.

$40M Stolen Across 10 Chains

Mercado Bitcoin announced on November 2nd 2026 that they have been the victim of a major security breach with $40 million worth of assets being stolen from the exchange.

Source: x.com

The attacker moved the assets into 10 different blockchain networks to make tracking them harder.

Deposits & Withdrawals Frozen

The exchange swiftly froze deposits and withdrawals. They stated that they’re working alongside blockchain security companies and police to track down the stolen assets.

Mercado Bitcoin Announcement

In an announcement they have told users to avoid making new deposits. They have also added that they have contained the issue and are putting new security measures in place.

Concerns For Latin America

This breach comes at a time when concerns around security in the fast growing crypto space in Latin America is rising. Mercado Bitcoin is one of the largest crypto exchanges in Latin America. This is the latest in a number of high profile crypto exchange hacks in 2026 and could lead to increased regulation in Brazil.

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