Mercado Bitcoin halts deposits and withdrawals after security incident
Brazil's Mercado Bitcoin suspended deposits and withdrawals after a security incident and said customers suffered no losses and no data leaked, according to Bitcoin Magazine. Tether CEO Paolo Ardoino said more than 4.5 million USDT linked to the incident was frozen.
Key facts
BTC after this site detected it
- 5 minutes-0.36%Gate · USDT
- 1 hour-0.31%Gate · USDT
Claims and open questions
3 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 · 3 publishers
Fresh security news
What sources claim
- Mercado Bitcoin said in a statement on X that it identified and contained the incident, that customers suffered no losses and no data leaked, and that the suspension was a precaution, according to Bitcoin Magazine.
- Tether CEO Paolo Ardoino said on X that Tether froze more than 4.5 million USDT tied to the attack, Decrypt reported.
Still unresolved
- Which Mercado Bitcoin system was breached, and what total loss figure does the exchange confirm in an official statement or filing?
- When will Mercado Bitcoin reopen deposits and withdrawals, and has it set a timetable or absorbed-losses commitment in an official 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, 15:53 · Received Nov 2, 2026, 15:53
Published Nov 2, 2026, 16:09 · Received Nov 2, 2026, 16:10
Published Nov 2, 2026, 16:46 · Received Nov 2, 2026, 16:46
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 | -0.36% | Nov 2, 2026, 15:53 → Nov 2, 2026, 15:58 (UTC) Gate · USDT |
| 1 hour | -0.31% | Nov 2, 2026, 15:53 → Nov 2, 2026, 16:53 (UTC) Gate · USDT |
Timing does not establish causation. Methods and limitations →
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