Brazil's Biggest Bitcoin Exchange Says It Will Refund Users After a $40 Million Hack
What Decrypt reports, why it matters and what remains unconfirmed.

The story in one view
- Reported by
- Decrypt
- Coverage lens
- Security and resilience
- Published
- Evidence status
- Cross-source reports linked
What Decrypt reports
Mercado Bitcoin says customers won't pay for a hack that drained tens of millions. Withdrawals on the exchange remain frozen with no restart date.
The immediate significance
The report describes direct security exposure for users, funds or software. The immediate significance is the potential harm; the confirmed scale and any protective action require technical or primary evidence beyond the publisher summary.
CoinDesk has also published a related report, providing another attributed account to compare without treating repetition as proof.
What remains unknown
- The publisher summary does not contain the complete victim, transaction or technical evidence.
- The report does not establish the final loss or exposure, or whether remediation is complete.
- No matched primary document independently supporting the central claim is linked to this page.
The named assets, right now
Spot quotes from Kraken, checked .
How the story developed
Decrypt and CoinDesk are reporting related developments. Reports are shown in publication order; separate coverage is not independent confirmation.
DecryptCurrent briefing Brazil's Biggest Bitcoin Exchange Says It Will Refund Users After a $40 Million Hack
Mercado Bitcoin says customers won't pay for a hack that drained tens of millions. Withdrawals on the exchange remain frozen with no restart date.
CoinDesk ZachXBT names French bank Crédit Mutuel Arkéa as suspected victim of $133 million crypto theft
Blockchain sleuth ZachXBT says the French bank may have lost more than $133 million from crypto exchange accounts. Crypto.com confirms it has blocked funds linked to the theft.
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