Bitcoin

April

<p>UniSat Wallet, the first BRC-20 wallet and marketplace provider, was hit by many double-spend attacks resulting from a vulnerability in its codebase. The attacks occurred just hours after the open-source Chrome extension for<a href="https://www.cryptopolitan.com/bitcoin-ordinals-create-a-buzz-what-are-they/" data-type="post" data-id="265471"> Bitcoin Ordinals</a> became inaccessible.</p>



<p>UniSat Wallet explained on Twitter that during its testing last week, it had simulated various approaches to double-spend attacks and had made improvements and enhancements to the code. Unfortunately, certain problems were still exposed in the initial public version. According to a preliminary investigation by the extension&#8217;s team, 70 out of 383 transactions were affected.</p>



<figure class="wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter"><div class="wp-block-embed__wrapper">
<blockquote class="twitter-tweet" data-width="550" data-dnt="true"><p lang="en" dir="ltr">A few hours ago, UniSat Marketplace, which just launched, experienced a large number of double-spend attacks due to a vulnerability in our codebase. <br>During our testing last week, we simulated different approaches to double-spend attacks and made improvements and enhancements to…</p>&mdash; UniSat Wallet &#8211; Store, Inscribe and Search. (@unisat_wallet) <a href="https://twitter.com/unisat_wallet/status/1650349215552536577?ref_src=twsrc%5Etfw" rel="nofollow noopener" target="_blank">April 24, 2023</a></blockquote><script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>
</div></figure>



<h2 id="unisat-wallet-offers-compensation-to-affected-users-following-vulnerability-in-codebase">UniSat Wallet offers compensation to affected users following vulnerability in codebase</h2>



<p>UniSat Wallet promised to compensate affected users after conducting further investigations over the next few days. It also requested users who believe they were impacted to open a support ticket on its Discord server.</p>



<p>&#8220;Please understand that BRC-20 is still very young, and numerous issues have been identified and resolved in the past 30 days,&#8221; UniSat Wallet tweeted. &#8220;As the first BRC-20 wallet provider and the first marketplace provider, UniSat is constantly facing numerous issues and moving forward with your full support.&#8221;</p>



<p>The BRC-20 token standard is a relatively new and experimental fungible token standard created using Ordinals and Inscriptions, which are saved on the Bitcoin blockchain.</p>



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Bitcoin Ordinals extension inaccessibility leads to double-spend attacks on first BRC-20 wallet provider

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