Bitcoin

<div class="cryptonews">
 <p class="is-style-lead">A Bitcoin user assumed ownership of hacked funds involved in a <a rel="noopener noreferrer nofollow" title="record" href="https://thebittimes.com/tag/record.html">record</a>-breaking transaction where miner AntPool received over 83 BTC in fees.</p>
 <p>An unknown X user claimed to be the victim of a hack connected to the largest Bitcoin (BTC) fee paid for a single transaction to date. On Nov. 24, an anonymous individual created the X page “@83_5BTC” and said their address paid 83.5 BTC in fees after creating a new cold wallet.&nbsp;</p>
 <p>The user surmised that a hacker likely leveraged an automated script to hijack their transaction, paying a record fee worth an estimated $3.1 million in process.&nbsp;</p>
 <p>crypto.news had reported the news a day prior, detailing 139.4 BTC sent in a transaction block mined by blockchain company AntPool.</p>
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  <p>It was my BTC that paid the high fee. I created a new cold wallet, transferred 139BTC to it and it got transferred out to another wallet immediately. I can only imagine that someone was running a script on that wallet and that the script had a weird fee calculation.</p> <cite>83_5BTC on X</cite>
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 <p>This user provided a signed on-chain message from the compromised Bitcoin wallet as proof of the <a rel="noopener noreferrer nofollow" title="claim" href="https://thebittimes.com/tag/claim.html">claim</a>. The text reads “@83_5BTC is the owner of the funds that paid the high fee” and was confirmed by Jameson Lopp, co-founder and CTO of Casa, a digital asset security provider.</p>
 <p>Mononaut, the pseudonymous creator of Bitcoin explorer Mempool, also verified the <a rel="noopener noreferrer nofollow" title="claim" href="https://thebittimes.com/tag/claim.html">claim</a>. However, the signature may have been issued by the attacker or true victim, according to Mononaut who added that AntPool would have to rely on alternative methods of verification.&nbsp;</p>
 <p>Furthermore, the developer explained how and why the <a rel="noopener noreferrer nofollow" title="hacker" href="https://thebittimes.com/tag/hacker.html">hacker</a> was able to steal cryptocurrencies from a Bitcoin wallet.</p>
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    <p lang="en" dir="ltr">3/ The most likely explanation is that the wallet was generated from bad entropy – perhaps a brainwallet, or too few dice rolls/coin flips, or an insecure PRNG.<br><br>Let this be a reminder not to take shortcuts with your entropy, and ideally to use multisig for very large sums.</p>— mononaut (@mononautical) November 27, 2023
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 <p>Until the incident on Nov. 23, crypto firm Paxos held the <a rel="noopener noreferrer nofollow" title="record" href="https://thebittimes.com/tag/record.html">record</a> for the biggest Bitcoin transaction fee. Paxos paid around $500,000 in an apparent “fat finger” error and miner F2Pool snapped up the fee. The BTC miner reportedly returned Paxos’ overpayment in a show of good faith.&nbsp;</p>
 <p>It remained to be seen at press time whether AntPool intends to return the funds or how this crypto service provider plans to verify the self-proclaimed victim’s identity.&nbsp;</p>
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<p>Source: <a rel="noopener noreferrer nofollow" target="_blank" href="https://thebittimes.com/bitcoin-holder-claims-hacker-stole-139-btc-paid-record-3m-in-fees-tbt71789.html">https://thebittimes.com/bitcoin-holder-claims-hacker-stole-139-btc-paid-record-3m-in-fees-tbt71789.html</a></p>

Bitcoin holder claims hacker stole 139 BTC, paid record $3m in fees

TheBitTimes

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