Mercado Bitcoin pauses withdrawals after $46 million security breach
Mercado Bitcoin, described by The Block as Brazil's largest crypto exchange, confirmed a security incident and paused withdrawals. The Block reported the breach at $46 million, while Cointelegraph reported the exchange said customer funds and data were safe after halting deposits and withdrawals.
Key facts
BTC after this site detected it
- 5 minutes+0.00%Gate · USDT
- 1 hour-0.08%Gate · USDT
Claims and open questions
2 independent publishers report it (copies of the same text count once); they may still rely on one underlying source. An official source would raise it.
Security topic · core coin BTC · 2 publishers
Fresh security news
What sources claim
- The Block reported that Mercado Bitcoin, Brazil's largest crypto exchange, confirmed a security incident and paused withdrawals in a breach of $46 million.
- Cointelegraph reported that Mercado Bitcoin said customer funds and data were safe after pausing deposits and withdrawals.
- Cointelegraph reported that Mercado Bitcoin wallets showed transfers following the $46 million theft.
Still unresolved
- What mechanism or specific wallets were involved in the breach, as confirmed by an official Mercado Bitcoin statement or on-chain data.
- Whether the exchange has set a timeline or process for resuming deposits and withdrawals, per a company notice.
Evidence levels describe source coverage, not the probability that a report is true. Price moves and their timing cannot establish a cause; minute samples show an observed interval and alert thresholds are heuristics. Explanations are model-assisted, with citations and figures checked. Source titles stay in their original language; full articles are not republished.
Source evidence
Published Nov 2, 2026, 19:05 · Received Nov 2, 2026, 19:14
Published Nov 2, 2026, 20:19 · Received Nov 2, 2026, 20:23
Market reaction after detection
Measured from the sample nearest site detection, on the same source and quote currency.
| Window | Return | Actual sampled interval / source |
|---|---|---|
| 5 minutes | +0.00% | Nov 2, 2026, 19:14 → Nov 2, 2026, 19:19 (UTC) Gate · USDT |
| 1 hour | -0.08% | Nov 2, 2026, 19:14 → Nov 2, 2026, 20:14 (UTC) Gate · USDT |
Timing does not establish causation. Methods and limitations →
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