{"id":5873,"date":"2026-04-11T23:44:23","date_gmt":"2026-04-11T14:44:23","guid":{"rendered":"https:\/\/allaboutenglishmastery.com\/?p=5873"},"modified":"2026-04-11T23:44:25","modified_gmt":"2026-04-11T14:44:25","slug":"quantum-computing-risk-for-bitcoin-google","status":"publish","type":"post","link":"https:\/\/allaboutenglishmastery.com\/ko\/quantum-computing-risk-for-bitcoin-google\/","title":{"rendered":"Google Warns Quantum Computing Could Threaten Bitcoin Sooner Than Expected"},"content":{"rendered":"<h1 class=\"wp-block-heading\">Google Warns Quantum Computing Could Threaten Bitcoin Sooner Than Expected<\/h1>\n\n\n\n<h4 class=\"wp-block-heading\">Intermediate | April 11, 2026<\/h4>\n\n\n\n<p>\u2728 <em>\ud63c\uc790\uc11c \uae30\uc0ac\ub97c \uc18c\ub9ac \ub0b4\uc5b4 \uc77d\uac70\ub098 \ud29c\ud130\ub97c \ub530\ub77c \uac01 \ub2e8\ub77d\uc744 \ubc18\ubcf5\ud574\uc11c \uc77d\uc73c\uc138\uc694. \ub808\ubca8...<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">A New Warning from Google<\/h3>\n\n\n\n<p>Google researchers published a new paper at the end of March warning that future quantum computers may be able to break the kind of encryption used by Bitcoin and many other cryptocurrencies. The paper focuses on the <strong>256-bit elliptic curve discrete logarithm problem<\/strong>, which is a mouthful, but here is the simple version: it is one of the main math problems that helps keep crypto wallets secure. In a short Wall Street Journal update, the story was framed as a fresh warning that Bitcoin\u2019s protections may be weaker against future quantum machines than many people had assumed. (<a href=\"https:\/\/www.wsj.com\/livecoverage\/stock-market-today-dow-sp-500-nasdaq-03-31-2026\/card\/x4yBALvF5ezP4R8mk25q?utm_source=chatgpt.com\">wsj.com<\/a>)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Why Quantum Computing Risk for Bitcoin Is Getting More Attention<\/h3>\n\n\n\n<p>The headline-grabbing part of the paper is this: Google\u2019s team says a powerful future quantum computer might need <strong>fewer than 500,000 physical qubits<\/strong> to break this encryption in <strong>a few minutes<\/strong>. That is much lower than earlier estimates, and Google says it represents about a <strong>20-fold reduction<\/strong> in the number of physical qubits previously thought necessary. So the big story is not that Bitcoin is broken today. The big story is that the path to a future attack may be shorter than many people expected. That is exactly why the quantum computing risk for Bitcoin is getting more attention now. (<a href=\"https:\/\/research.google\/blog\/safeguarding-cryptocurrency-by-disclosing-quantum-vulnerabilities-responsibly\/\">research.google<\/a>)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">What the Paper Actually Says About Bitcoin<\/h3>\n\n\n\n<p>The paper is broader than Bitcoin alone, but Bitcoin is one of the clearest examples because it relies on elliptic curve cryptography. The researchers say that <strong>most blockchain technologies and cryptocurrencies<\/strong> depend on this kind of protection. They also warn that the first fast, cryptographically relevant quantum computers could make possible <strong>\u201con-spend attacks\u201d<\/strong> on public mempool transactions in some cryptocurrencies. In other words, if these machines ever become real, some transactions could become vulnerable while they are being processed. That sounds dramatic\u2014and it is serious\u2014but it still describes a future risk, not a present-day crisis. (<a href=\"https:\/\/research.google\/blog\/safeguarding-cryptocurrency-by-disclosing-quantum-vulnerabilities-responsibly\/\">research.google<\/a>)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">So Is Bitcoin in Immediate Danger?<\/h3>\n\n\n\n<p>Not exactly. Google\u2019s blog and paper both talk about <strong>future<\/strong> cryptographically relevant quantum computers, not machines that exist right now. Google\u2019s wider security planning also shows why the company is taking this seriously: it recently set a <strong>2029 migration timeline<\/strong> for its own post-quantum cryptography work because it believes the industry needs to prepare before these machines arrive. So the message is not \u201cpanic now.\u201d The message is \u201cstart moving before the storm gets here.\u201d (<a href=\"https:\/\/research.google\/blog\/safeguarding-cryptocurrency-by-disclosing-quantum-vulnerabilities-responsibly\/\">research.google<\/a>)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">What Google Thinks the Crypto World Should Do<\/h3>\n\n\n\n<p>Google is not saying that cryptocurrency is doomed. In fact, the researchers argue that <strong>post-quantum cryptography<\/strong>, often shortened to <strong>PQC<\/strong>, gives the crypto world a real path forward. They say the community should avoid exposing or reusing vulnerable wallet addresses and should think seriously about what to do with abandoned coins that may remain exposed over time. They also say they used a <strong>zero-knowledge proof<\/strong> to support their claims without openly publishing attack details that could help bad actors. That is a very modern sentence, but the basic point is simple: warn people, prove the math, and do it without handing thieves a blueprint. (<a href=\"https:\/\/research.google\/blog\/safeguarding-cryptocurrency-by-disclosing-quantum-vulnerabilities-responsibly\/\">research.google<\/a>)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Why This Story Matters Beyond Crypto<\/h3>\n\n\n\n<p>This story matters because Bitcoin is really just the flashy headline version of a much bigger issue. Google has been publicly urging organizations to prepare for a world in which quantum computers can break today\u2019s digital signatures and encryption. That means the long-term question is not only about crypto investors. It also affects banks, online identity systems, secure communications, and the broader digital economy. So even if you do not own a single Bitcoin, this story is still worth watching. It is one more sign that the race between security and technology is heating up. (<a href=\"https:\/\/blog.google\/innovation-and-ai\/technology\/safety-security\/cryptography-migration-timeline\/\">blog.google<\/a>)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Vocabulary<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>quantum computing<\/strong> (noun) \u2013 a type of computing that uses quantum physics to solve certain problems much faster.<br><em>Example: Quantum computing could change security systems in the future.<\/em><\/li>\n\n\n\n<li><strong>encryption<\/strong> (noun) \u2013 a way of protecting information so others cannot easily read or steal it.<br><em>Example: Bitcoin depends on strong encryption to protect wallets and transactions.<\/em><\/li>\n\n\n\n<li><strong>cryptocurrency<\/strong> (noun) \u2013 digital money that uses cryptography and blockchain technology.<br><em>Example: Bitcoin is the world\u2019s best-known cryptocurrency.<\/em><\/li>\n\n\n\n<li><strong>qubit<\/strong> (noun) \u2013 the basic unit of information in a quantum computer.<br><em>Example: Researchers measured the future attack in terms of physical qubits.<\/em><\/li>\n\n\n\n<li><strong>logical qubit<\/strong> (noun) \u2013 an error-corrected qubit built from many physical qubits.<br><em>Example: The paper says the attack could use fewer than 1,200 logical qubits.<\/em><\/li>\n\n\n\n<li><strong>vulnerable<\/strong> (adjective) \u2013 open to harm or attack.<br><em>Example: Reused wallet addresses may be more vulnerable in the future.<\/em><\/li>\n\n\n\n<li><strong>mempool<\/strong> (noun) \u2013 the waiting area where crypto transactions sit before they are confirmed.<br><em>Example: The paper warns about possible attacks on mempool transactions.<\/em><\/li>\n\n\n\n<li><strong>migration<\/strong> (noun) \u2013 the process of moving from one system to another.<br><em>Example: Google has set a timeline for migration to post-quantum security.<\/em><\/li>\n\n\n\n<li><strong>post-quantum cryptography<\/strong> (noun) \u2013 new encryption methods designed to resist quantum attacks.<br><em>Example: Experts say post-quantum cryptography could help protect Bitcoin in the future.<\/em><\/li>\n\n\n\n<li><strong>responsible disclosure<\/strong> (noun) \u2013 sharing a security problem in a careful way so people can fix it.<br><em>Example: The researchers used responsible disclosure instead of revealing every attack detail.<\/em><\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Discussion Questions (About the Article)<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>What did Google researchers warn about in their new paper?<\/li>\n\n\n\n<li>Why did the number of qubits in the paper get so much attention?<\/li>\n\n\n\n<li>What does the paper say about Bitcoin and other cryptocurrencies?<\/li>\n\n\n\n<li>Why is this not the same as saying Bitcoin is broken today?<\/li>\n\n\n\n<li>What solutions or next steps did Google suggest?<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Discussion Questions (About the Topic)<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Do you think people take future technology risks seriously enough?<\/li>\n\n\n\n<li>Should the crypto industry move faster to prepare for quantum threats?<\/li>\n\n\n\n<li>How should researchers share dangerous information responsibly?<\/li>\n\n\n\n<li>What other industries besides crypto could be affected by quantum computing?<\/li>\n\n\n\n<li>Is it better to prepare early for a low-probability risk, or wait until the danger is closer?<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Related Idiom<\/h3>\n\n\n\n<p><strong>\u201cA wake-up call\u201d<\/strong> \u2013 something that warns people that action is needed.<\/p>\n\n\n\n<p><em>Example: Google\u2019s paper could be a wake-up call for the crypto industry to prepare for quantum computing risk.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\ud83d\udce2 Want more practical English practice with real-world stories? <strong>Sign up for the All About English Mastery Newsletter!<\/strong> <a href=\"https:\/\/allaboutenglishmastery.com\/ko\/newsletter\/\">Click here<\/a> to join us.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>Want to finally master English but don\u2019t have the time? <a href=\"https:\/\/allaboutenglishmastery.com\/ko\/english-mastery-course\/\"><strong>Mastering English for Busy Professionals<\/strong><\/a> is built for busy people like you.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>Follow our YouTube Channel <a href=\"https:\/\/www.youtube.com\/@All_About_English\"><strong>@All_About_English<\/strong><\/a> for more useful English tips and real-world practice.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>This article was inspired by: <a href=\"https:\/\/www.wsj.com\">The Wall Street Journal<\/a>, <a href=\"https:\/\/research.google\">Google Research<\/a>, <a href=\"https:\/\/arxiv.org\">arXiv<\/a>, and the <a href=\"https:\/\/blog.google\">Google Blog<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Google Warns Quantum Computing Could Threaten Bitcoin Sooner Than Expected Intermediate | April 11, 2026 \u2728 Read the article aloud [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5874,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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