{"id":47844,"date":"2025-08-12T13:19:12","date_gmt":"2025-08-12T10:19:12","guid":{"rendered":"https:\/\/coinengineer.net\/blog\/?p=47844"},"modified":"2025-08-12T13:19:29","modified_gmt":"2025-08-12T10:19:29","slug":"breaking-point-in-monero-history-qubic-mining-pools-alleged-51-attack","status":"publish","type":"post","link":"https:\/\/coinengineer.net\/blog\/breaking-point-in-monero-history-qubic-mining-pools-alleged-51-attack\/","title":{"rendered":"Breaking Point in Monero History: Qubic Mining Pool\u2019s Alleged 51% Attack"},"content":{"rendered":"<p data-start=\"82\" data-end=\"286\">One of the oldest assets in the crypto world,<a href=\"https:\/\/coinengineer.net\/blog\/localmonero-and-agoradesk-shutting-down-what-it-means-for-monero\/\"> <strong data-start=\"128\" data-end=\"144\">Monero (XMR)<\/strong><\/a>, is reportedly under a <strong data-start=\"168\" data-end=\"182\">51% attack<\/strong>. Experts claim that this attack, allegedly carried out by the Qubic mining pool, has been successful.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_71 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/coinengineer.net\/blog\/breaking-point-in-monero-history-qubic-mining-pools-alleged-51-attack\/#Attack_Details\" title=\"Attack Details\">Attack Details<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/coinengineer.net\/blog\/breaking-point-in-monero-history-qubic-mining-pools-alleged-51-attack\/#What_is_a_51_Attack\" title=\"What is a 51% Attack?\">What is a 51% Attack?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/coinengineer.net\/blog\/breaking-point-in-monero-history-qubic-mining-pools-alleged-51-attack\/#Monero_XMR_Price_Outlook\" title=\"Monero (XMR) Price Outlook\">Monero (XMR) Price Outlook<\/a><\/li><\/ul><\/nav><\/div>\n<h3 data-start=\"288\" data-end=\"308\"><span class=\"ez-toc-section\" id=\"Attack_Details\"><\/span>Attack Details<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"309\" data-end=\"377\">Charles Guillemet, CTO of hardware wallet producer Ledger, stated:<\/p>\n<blockquote data-start=\"378\" data-end=\"631\">\n<p data-start=\"380\" data-end=\"631\">\u201cWe detected major changes in the Monero chain this morning. Qubic mining pool has been working for months to grow its hashrate capacity. With its current power, Qubic can rewrite the blockchain, perform double spending, and censor any transaction.\u201d<\/p>\n<\/blockquote>\n<p data-start=\"633\" data-end=\"836\">A <strong data-start=\"635\" data-end=\"649\">51% attack<\/strong> occurs when more than half of a blockchain\u2019s control power is taken over by a single entity. This poses significant security risks, especially for privacy-focused <strong data-start=\"813\" data-end=\"824\">altcoin<\/strong> projects.<\/p>\n<h3 data-start=\"838\" data-end=\"865\"><span class=\"ez-toc-section\" id=\"What_is_a_51_Attack\"><\/span>What is a 51% Attack?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"866\" data-end=\"1140\">This attack happens when an entity controls more than 50% of the network\u2019s hash power, enabling them to censor transactions, execute double spends, and rewrite the blockchain\u2019s history. While it\u2019s challenging to carry out on larger networks, smaller ones face higher risk.<\/p>\n<h3 data-start=\"1142\" data-end=\"1174\"><span class=\"ez-toc-section\" id=\"Monero_XMR_Price_Outlook\"><\/span>Monero (XMR) Price Outlook<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"1175\" data-end=\"1498\">Following the attack claims, Monero\u2019s price saw a sharp drop. XMR is currently trading at <strong data-start=\"1265\" data-end=\"1273\">$251<\/strong>, down <strong data-start=\"1280\" data-end=\"1290\">-6.11%<\/strong> on the day. From a technical standpoint, slipping below this level could increase selling pressure. However, if news flow stabilizes and network security is restored, a short-term rebound remains possible.<\/p>\n<p data-start=\"1500\" data-end=\"1739\">For investors, this incident once again highlights the critical importance of blockchain security. How Monero navigates this crisis will be decisive for both its price performance and the broader trust in privacy-focused crypto projects.<\/p>\n<p data-start=\"1500\" data-end=\"1739\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-165146 aligncenter\" src=\"https:\/\/coinmuhendisi.com\/blog\/wp-content\/uploads\/2025\/08\/monero-xmr.png\" alt=\"\" width=\"1281\" height=\"572\" \/><\/p>\n<p data-start=\"1741\" data-end=\"1899\" data-is-last-node=\"\" data-is-only-node=\"\">This content is not financial advice. The crypto market is highly volatile, and you should always do your own research before making investment decisions.<\/p>\n<p data-start=\"1741\" data-end=\"1899\" data-is-last-node=\"\" data-is-only-node=\"\"><em>You can also freely share your thoughts and comments about the topic in the comment section. Additionally, don\u2019t forget to follow us on our\u00a0<a href=\"https:\/\/t.me\/coinengineernews\">Telegram<\/a>,\u00a0<a href=\"https:\/\/www.youtube.com\/@CoinEngineer\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">YouTube<\/a>,\u00a0and\u00a0<a href=\"https:\/\/twitter.com\/coinengineers\" target=\"_blank\" rel=\"nofollow noopener\">Twitter<\/a>\u00a0channels for the latest\u00a0<a title=\"News\" href=\"https:\/\/coinengineer.net\/blog\/news\/\" data-internallinksmanager029f6b8e52c=\"7\">news<\/a>\u00a0and updates.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>One of the oldest assets in the crypto world, Monero (XMR), is reportedly under a 51% attack. Experts claim that this attack, allegedly carried out by the Qubic mining pool, has been successful. Attack Details Charles Guillemet, CTO of hardware wallet producer Ledger, stated: \u201cWe detected major changes in the Monero chain this morning. Qubic<\/p>\n","protected":false},"author":29,"featured_media":47846,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,2],"tags":[22270,22272,516,4158,22273,22271],"class_list":["post-47844","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-crypto-news","category-news","tag-51-attack","tag-charler-guillemet","tag-ledger","tag-monero-xmr","tag-monero-price","tag-qubic-mining-pool"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Breaking Point in Monero History: Qubic Mining Pool\u2019s Alleged 51% Attack - Coin Engineer<\/title>\n<meta name=\"description\" content=\"One of the oldest assets in the crypto world, Monero (XMR), is reportedly under a 51% attack. 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