{"id":20059,"date":"2026-05-21T00:00:12","date_gmt":"2026-05-21T00:00:12","guid":{"rendered":"https:\/\/cryptoted.net\/index.php\/2026\/05\/21\/bitcoin-quantum-risk-hits-1-92m-btc-says-glassnode\/"},"modified":"2026-05-21T00:00:12","modified_gmt":"2026-05-21T00:00:12","slug":"bitcoin-quantum-risk-hits-1-92m-btc-says-glassnode","status":"publish","type":"post","link":"https:\/\/cryptoted.net\/index.php\/2026\/05\/21\/bitcoin-quantum-risk-hits-1-92m-btc-says-glassnode\/","title":{"rendered":"Bitcoin quantum risk hits 1.92M BTC says Glassnode"},"content":{"rendered":"<p> <br \/>\n<br \/><img decoding=\"async\" src=\"https:\/\/media.crypto.news\/2025\/08\/crypto-news-The-best-Bitcoin-treasury-companies-will-evolve-into-outliers-option04.webp\" \/><\/p>\n<div>\n<p class=\"is-style-lead\">Bitcoin quantum exposure covers 1.92 million BTC, or 9.6% of total supply, Glassnode warned in a new report.<\/p>\n<div id=\"cn-block-summary-block_2c15eaed011a02df109de1e4a36619bf\" class=\"cn-block-summary\">\n<p>\n        <span class=\"tabs__item is-selected\">Summary<\/span>\n    <\/p>\n<div class=\"cn-block-summary__content\">\n<ul class=\"wp-block-list\">\n<li>Glassnode classified 1.92 million BTC as structurally exposed to a quantum breakthrough because their output types reveal public keys by design.<\/li>\n<li>Satoshi Nakamoto\u2019s coins represent about 1.1 million BTC of the structural risk, with another 620,000 BTC in other early Satoshi-era outputs.<\/li>\n<li>A broader 4.12 million BTC, or 20.6% of supply, is operationally exposed due to address reuse and key management practices at exchanges.<\/li>\n<\/ul><\/div>\n<\/div>\n<p><!-- .cn-block-summary --><\/p>\n<p>Blockchain analytics firm Glassnode <a href=\"https:\/\/insights.glassnode.com\/measuring-bitcoins-quantum-exposed-supply\/\" target=\"_blank\" rel=\"nofollow\">published<\/a> a full analysis on May 20 classifying 1.92 million BTC, or 9.6% of total supply, as structurally exposed to a future quantum computing breakthrough.<\/p>\n<p>The structural category covers outputs whose design reveals the public key regardless of address management. The three types at risk are Satoshi-era Pay-to-Public-Key outputs, legacy multisig structures and Pay-to-Taproot outputs.<\/p>\n<h2 class=\"wp-block-heading\">Glassnode breaks down Bitcoin\u2019s quantum exposure by address type<\/h2>\n<p>Glassnode classified 4.12 million BTC, or 20.6% of supply, as operationally exposed due to address reuse and poor key management. This is more than twice the structurally unsafe supply.<\/p>\n<p>Exchange-held Bitcoin accounts for a disproportionate share. About 1.66 million BTC on exchanges, 8.3% of total supply, falls into the exposed category. Binance shows 85% exposed balances while Coinbase\u2019s labeled balances sit at just 5% exposed.<\/p>\n<p>    <!-- .cn-block-related-link --><\/p>\n<h3 class=\"wp-block-heading\">What the structural versus operational split means for holders<\/h3>\n<p>Glassnode said the exposure could be reduced through better address standards and user behavior. BIP-360 proposes a quantum-resistant Pay-to-Merkle-Root output type offering a voluntary migration path for affected holders.<\/p>\n<p>Crypto.news has <a href=\"https:\/\/crypto.news\/is-bitcoin-quantum-safe\/\">covered<\/a> the full quantum threat timeline, including the estimated 2,330 logical qubits needed to break Bitcoin\u2019s elliptic curve cryptography.<\/p>\n<h3 class=\"wp-block-heading\">What exchanges and custodians should do now<\/h3>\n<p>Glassnode advised exchanges and custodians to reduce key reuse, improve address hygiene and plan migration to quantum-proof formats before any breakthrough occurs. The firm stressed the risk is structural but not yet active.<\/p>\n<p>Citi\u2019s analysis, as crypto.news <a href=\"https:\/\/crypto.news\/citi-warns-bitcoin-faces-quantum-risk\/\">reported<\/a>, found a quantum attack on major financial institutions could put $2 to $3.3 trillion of GDP at risk. The <a href=\"https:\/\/crypto.news\/price\/bitcoin\/\">Bitcoin price<\/a> page tracks how markets are pricing these long-term security concerns alongside current price action.<\/p>\n<p>    <!-- .cn-block-related-link --><\/p><\/div>\n<p><br \/>\n<br \/><a href=\"https:\/\/crypto.news\/bitcoin-quantum-risk-hits-1-92m-btc-says-glassnode\/\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bitcoin quantum exposure covers 1.92 million BTC, or 9.6% of total supply, Glassnode warned in a new report. Summary Glassnode classified 1.92 million BTC as structurally exposed to a quantum breakthrough because their output types reveal public keys by design. Satoshi Nakamoto\u2019s coins represent about 1.1 million BTC of the structural risk, with another 620,000 [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":20060,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":"","footnotes":""},"categories":[23],"tags":[],"kronos_expire_date":[],"class_list":["post-20059","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-crypto"],"_links":{"self":[{"href":"https:\/\/cryptoted.net\/index.php\/wp-json\/wp\/v2\/posts\/20059","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cryptoted.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cryptoted.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cryptoted.net\/index.php\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/cryptoted.net\/index.php\/wp-json\/wp\/v2\/comments?post=20059"}],"version-history":[{"count":0,"href":"https:\/\/cryptoted.net\/index.php\/wp-json\/wp\/v2\/posts\/20059\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cryptoted.net\/index.php\/wp-json\/wp\/v2\/media\/20060"}],"wp:attachment":[{"href":"https:\/\/cryptoted.net\/index.php\/wp-json\/wp\/v2\/media?parent=20059"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cryptoted.net\/index.php\/wp-json\/wp\/v2\/categories?post=20059"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cryptoted.net\/index.php\/wp-json\/wp\/v2\/tags?post=20059"},{"taxonomy":"kronos_expire_date","embeddable":true,"href":"https:\/\/cryptoted.net\/index.php\/wp-json\/wp\/v2\/kronos_expire_date?post=20059"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}