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REGULATION · STORY · BTC$40 milliondrained from Mercado Bitcoin across10 chains

Mercado Bitcoin Keeps Withdrawals Frozen After $40 Million Hack as Tether Freezes Linked USDT

story · 3 sources
3 independentfirst seen published latency 12 min

Mercado Bitcoin, Brazil’s largest crypto exchange, has kept deposits and withdrawals suspended following a security incident that drained Brazil’s Mercado Bitcoin halts withdrawals after $40 million drained across 10 chains.CoinDesk · · read it at the source across 10 chains, according to CoinDesk.

The exchange identified destination wallets that received bitcoin, ether and other assets tied to the incident and said customers suffered no losses, according to The Defiant. Mercado Bitcoin has not disclosed a total loss figure, per The Defiant.

Blockchain tracker Arkham said the attacker’s address cluster, grouping 36 addresses, now holds Arkham Says Mercado Bitcoin Attacker Holds $46 Million.The Defiant · · read it at the source, according to The Defiant.

Tether said it froze more than Tether Says It Froze Over 4.5 Million USDT Tied to Mercado Bitcoin Incident.The Defiant · · read it at the source USDT connected to the incident, a figure confirmed through blacklist actions recorded on the Ethereum and Tron networks, according to The Defiant and Decrypt.

Deposits and withdrawals at Mercado Bitcoin remain suspended as the exchange continues tracing the flow of funds, according to The Defiant.

Sources: The Defiant, CoinDesk, Decrypt

This article is for information only and is not financial advice.

What the market did

Price reaction-0.91%ETH
Independent outlets3
Reports per hour0.95
Noveltyfollow-up3 outlet(s), 115 min spread
Before the headline$357,508,873 moved 12 minutes earliera random hour: 13.1%

Each figure is this site’s own reading, with what it was measured against. A blank is a reading nobody took, not a zero. The before-the-headline window prints the rate a RANDOM hour clears the same bar, because a hit rate without its null is not a finding.

Tags: MercadoBitcoin, Tether, USDT, CryptoHack, Brazil

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Canonical IDBYTE-2026-11-02-1472permanent link
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