<p>Three outlets describe the same Mercado Bitcoin hot-wallet breach but give different figures for how many blockchains were hit, how much was stolen, and how much has been frozen.</p>
<div class="ag-dispute">
 <p>Three outlets describe the same Mercado Bitcoin hot-wallet breach but give different figures for how many blockchains were hit, how much was stolen, and how much has been frozen.</p>
 <h2 id="what-all-sources-agree-on">What all sources agree on</h2>
 <ul>
  <li>Mercado Bitcoin suspended deposits and withdrawals after a security incident in its hot wallets.</li>
  <li>The exchange said no customer data was breached and said customers would not lose assets.</li>
  <li>Tether froze more than 4.5 million USDT connected to the incident, confirmed by CEO Paolo Ardoino.</li>
  <li>Bloomberg reported the exchange said it would absorb the full loss.</li>
  <li>The exchange published destination wallet addresses to help track the stolen funds.</li>
 </ul>
 <h2 id="where-the-reports-disagree">Where the reports disagree</h2>
 <div class="ag-dispute__point">
  <h3 id="span-1-span-number-of-blockchains-the-attacker-drained-funds-across"><span>1</span>Number of blockchains the attacker drained funds across</h3>
  <blockquote class="ag-dispute__pos">
   <p>The attacker drained funds across at least ten blockchains (Ethereum, Bitcoin, Solana, Tron, Polygon, Arbitrum, Avalanche, BNB Chain, Stellar, etc.), per Hypernative/Arkham/Bitquery analysis.</p>
   <p><cite><a href="https://blockchainreporter.net/mercado-bitcoin-halts-withdrawals-40-million/" rel="noopener noreferrer nofollow">BlockchainReporter</a> 2026-11-03 06:33</cite></p>
  </blockquote>
  <blockquote class="ag-dispute__pos">
   <p>Its analysis found the exchange's hot wallets on 10 chains paid the attacker within about 25 minutes.</p>
   <p><cite><a href="https://cryptonews.com.au/news/brazils-largest-crypto-exchange-hit-by-security-breach-days-after-binance-hack-135397/" rel="noopener noreferrer nofollow">Crypto News Australia</a> 2026-11-03 06:43</cite></p>
  </blockquote>
  <blockquote class="ag-dispute__pos">
   <p>Chainalysis traced an estimated $49 million drain across 17 blockchains.</p>
   <p><cite><a href="https://en.cryptonomist.ch/2026/11/03/mercado-bitcoin-hack-blocked-assets/" rel="noopener noreferrer nofollow">The Cryptonomist EN</a> 2026-11-03 09:29</cite></p>
  </blockquote>
  <p><b>What would settle it:</b> A published Chainalysis or Hypernative/Arkham/Bitquery on-chain trace listing the specific chain IDs involved.</p>
 </div>
 <div class="ag-dispute__point">
  <h3 id="span-2-span-total-value-drained-from-the-exchange"><span>2</span>Total value drained from the exchange</h3>
  <blockquote class="ag-dispute__pos">
   <p>Blockchain security firm Hypernative put the preliminary loss above $40 million, while Arkham Intelligence pegged it at roughly $46 million.</p>
   <p><cite><a href="https://blockchainreporter.net/mercado-bitcoin-halts-withdrawals-40-million/" rel="noopener noreferrer nofollow">BlockchainReporter</a> 2026-11-03 06:33</cite></p>
  </blockquote>
  <blockquote class="ag-dispute__pos">
   <p>Bitquery puts the total taken at US$48.5 million (AU$69.4 million).</p>
   <p><cite><a href="https://cryptonews.com.au/news/brazils-largest-crypto-exchange-hit-by-security-breach-days-after-binance-hack-135397/" rel="noopener noreferrer nofollow">Crypto News Australia</a> 2026-11-03 06:43</cite></p>
  </blockquote>
  <blockquote class="ag-dispute__pos">
   <p>Mercado Bitcoin estimated the value of affected assets at about $38 million. Blockchain investigations firm Chainalysis, which helped trace the stolen funds, estimated that approximately $49 million had been drained across 17 blockchains.</p>
   <p><cite><a href="https://en.cryptonomist.ch/2026/11/03/mercado-bitcoin-hack-blocked-assets/" rel="noopener noreferrer nofollow">The Cryptonomist EN</a> 2026-11-03 09:29</cite></p>
  </blockquote>
  <p><b>What would settle it:</b> A final reconciled on-chain loss figure from the exchange or a named blockchain forensics firm, or Mercado Bitcoin's own financial disclosure of the incident.</p>
 </div>
 <div class="ag-dispute__point">
  <h3 id="span-3-span-total-amount-of-funds-frozen-or-blocked-beyond-the-tether-4-5m-usdt"><span>3</span>Total amount of funds frozen or blocked beyond the Tether 4.5M USDT</h3>
  <blockquote class="ag-dispute__pos">
   <p>On-chain data firm Bitquery later counted US$7.3 million (AU$10.44 million) frozen by Tether and stablecoin issuer Paxos combined.</p>
   <p><cite><a href="https://cryptonews.com.au/news/brazils-largest-crypto-exchange-hit-by-security-breach-days-after-binance-hack-135397/" rel="noopener noreferrer nofollow">Crypto News Australia</a> 2026-11-03 06:43</cite></p>
  </blockquote>
  <blockquote class="ag-dispute__pos">
   <p>The exchange said $11 million had been blocked with assistance from Tether, Circle, Paxos, BRL1 and Chainalysis.</p>
   <p><cite><a href="https://en.cryptonomist.ch/2026/11/03/mercado-bitcoin-hack-blocked-assets/" rel="noopener noreferrer nofollow">The Cryptonomist EN</a> 2026-11-03 09:29</cite></p>
  </blockquote>
  <p><b>What would settle it:</b> A consolidated statement from Mercado Bitcoin or the stablecoin issuers listing each freeze action and amount.</p>
 </div>
 <h2 id="what-to-make-of-it">What to make of it</h2>
 <p>Treat the core facts of the breach, the no-customer-loss pledge, and the Tether freeze of 4.5 million USDT as established; the exact number of blockchains hit, the total dollar amount stolen, and the total amount frozen remain unresolved and vary by source.</p>
</div>
<p>Treat the core facts of the breach, the no-customer-loss pledge, and the Tether freeze of 4.5 million USDT as established; the exact number of blockchains hit, the total dollar amount stolen, and the total amount frozen remain unresolved and vary by source.</p>
<p><strong>Update</strong> 03 Nov 2026, 10:16 UTC · added by Unchained</p>
<p>Unchained reports Mercado Bitcoin itself has now put a figure on the incident, pegging losses at $38 million, and says it has already blocked $11 million in cooperation with partners. The exchange also stated that clients will not lose their assets as a result of the breach.</p>
<p><strong>Update</strong> 04 Nov 2026, 00:16 UTC · added by CoinTurk News EN, Decrypt</p>
<p>Decrypt and CoinTurk News both report that Mercado Bitcoin has pledged to refund affected customers in full, with CoinTurk citing a $38 million loss figure versus Decrypt’s $40 million estimate. Decrypt adds that withdrawals remain frozen with no stated restart date, while CoinTurk specifies the breach occurred on November 2 and that the exchange says client balances and data remain secure.</p>
<p><strong>Update</strong> 04 Nov 2026, 01:31 UTC · added by Bitcoin.com News</p>
<p>Bitcoin.com News adds that Mercado Bitcoin has publicly pledged to cover customer losses stemming from the breach, which it dates to Nov. 2, 2026, and pegs the stolen amount at roughly $38 million.</p>
<p>Originally reported by <a href="https://altcoingordon.com/mercado-bitcoin-hack-reports-split-chains-loss-size/" rel="noopener noreferrer nofollow">AltcoinGordon</a>, written by Sophia Bennett. Republished with permission.</p>
<p><a href="https://altcoingordon.com/mercado-bitcoin-hack-reports-split-chains-loss-size/" rel="noopener noreferrer nofollow">View the original on AltcoinGordon →</a></p>
<p>The post <a href="https://thecoinrise.com/mercado-bitcoin-hack-reports-split-on-chains-loss-size/" rel="noopener noreferrer nofollow">Mercado Bitcoin Hack: Reports Split on Chains, Loss Size</a> appeared first on <a href="https://thecoinrise.com/" rel="noopener noreferrer nofollow">TheCoinrise.com</a>.</p>

Mercado Bitcoin Hack: Reports Split on Chains, Loss Size

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