{"id":73599,"date":"2026-06-05T12:37:41","date_gmt":"2026-06-05T12:37:41","guid":{"rendered":"https:\/\/crowdfundjunction.com\/blog\/zcash-patches-critical-bug-enabling-unlimited-counterfeit-zec-minting-as-price-crashes-41\/"},"modified":"2026-06-05T12:37:41","modified_gmt":"2026-06-05T12:37:41","slug":"zcash-patches-critical-bug-enabling-unlimited-counterfeit-zec-minting-as-price-crashes-41","status":"publish","type":"post","link":"https:\/\/crowdfundjunction.com\/blog\/zcash-patches-critical-bug-enabling-unlimited-counterfeit-zec-minting-as-price-crashes-41\/","title":{"rendered":"Zcash Patches Critical Bug Enabling Unlimited Counterfeit ZEC Minting as Price Crashes 41%"},"content":{"rendered":"<p><b>(Originally posted on : Bitcoin News )<\/b><br \/>\n<\/p>\n<div>\n<p><span style=\"font-weight:400\"><\/p>\n<div class=\"@container mb-[25px] rounded-sm overflow-clip py-0.5 pr-0.5 pl-2.5 bg-success-100\">\n<div class=\"flex flex-col gap-m overflow-clip rounded-[6px] !bg-success-10 p-3 @[420px]:p-m\">\n<h2 class=\"m-0 flex items-center gap-s text-[19px] !text-[#1c1c1c] md:text-[20px]\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"16\" height=\"10\" viewbox=\"0 0 16 10\" fill=\"none\" class=\"shrink-0 text-success-100\" aria-hidden=\"true\"><path d=\"M1 1.5h14\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\"\/><path d=\"M1 8.5h10\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\"\/><\/svg><span>Key Takeaways<\/span><\/h2>\n<ul class=\"m-0 flex list-none flex-col gap-m pl-0\">\n<li class=\"m-0 flex items-start gap-s !text-[#434248]\"><span class=\"mt-2 size-2 shrink-0 rounded-full bg-success-100\" aria-hidden=\"true\"\/><span class=\"text-body\">Researcher Taylor Hornby found an Orchard flaw on May 29 that could mint unlimited counterfeit ZEC.<\/span><\/li>\n<li class=\"m-0 flex items-start gap-s !text-[#434248]\"><span class=\"mt-2 size-2 shrink-0 rounded-full bg-success-100\" aria-hidden=\"true\"\/><span class=\"text-body\">ZEC dropped more than 40% over the past 24 hours as holders weighed whether fake coins had entered the shielded pool.<\/span><\/li>\n<li class=\"m-0 flex items-start gap-s !text-[#434248]\"><span class=\"mt-2 size-2 shrink-0 rounded-full bg-success-100\" aria-hidden=\"true\"\/><span class=\"text-body\">Zcash developers patched the bug and proposed supply-verification upgrades to rebuild trust.<\/span><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p><\/span><\/p>\n<h2><span style=\"font-weight:400\">A Forgery Flaw Hidden Since 2022<\/span><\/h2>\n<p><span style=\"font-weight:400\">Zcash founder Zooko Wilcox <a href=\"https:\/\/x.com\/zooko\/status\/2062644925590900980?s=46\" target=\"_blank\" rel=\"noopener noreferrer\">confirmed<\/a> that security researcher Taylor Hornby had uncovered a counterfeiting vulnerability in Orchard, the network\u2019s main privacy pool, and disclosed it privately to him on May 29. T<\/span><span style=\"font-weight:400\">he bug could have been used to create undetectable counterfeit ZEC coins that the network would have accepted as genuine, while the fraud stayed invisible inside the shielded pool.<\/span><\/p>\n<p><span style=\"font-weight:400\">Hornby did not stop at theory and with the help of an <\/span><span style=\"font-weight:400\">artificial intelligence model<\/span><span style=\"font-weight:400\">, he devised a complete exploit and generated an unlimited number of counterfeit ZEC in local testing. T<\/span><span style=\"font-weight:400\">he disclosure sent ZEC down 40% in a single day as developers subsequently revealed that the flaw had been present since the Orchard pool launched in May 2022 (sitting undetected for roughly four years and surviving repeated audits by specialists who never spotted it).<\/span><\/p>\n<figure id=\"attachment_820282\" aria-describedby=\"caption-attachment-820282\" style=\"width:1192px\" class=\"wp-caption aligncenter\"><figcaption id=\"caption-attachment-820282\" class=\"wp-caption-text\">Image source: X<\/figcaption><\/figure>\n<p><span style=\"font-weight:400\">Because Orchard is a fully shielded system, the disclosure carried an unusual sting, i.e., there is no cryptographic way to prove the bug was never abused. The same privacy guarantees that make Zcash attractive to users who want confidential transactions also make it impossible to audit the shielded supply for fake coins minted before the patch landed. In a transparent ledger like <span>Bitcoin<\/span>, anyone can verify that supply matches the protocol\u2019s rules; in a shielded pool, that certainty is precisely what is sacrificed for privacy.<\/span><\/p>\n<h2><span style=\"font-weight:400\">How Developers Responded<\/span><\/h2>\n<p><span style=\"font-weight:400\">Hornby reported the issue to the Zcash Open Development Lab, which coordinated an emergency response across wallets, exchanges and <span>node<\/span> operators before shipping a fix on June 2. In a detailed post on the <\/span><a href=\"https:\/\/forum.zcashcommunity.com\/t\/the-orchard-counterfeiting-vulnerability-and-next-steps\/56015\" target=\"_blank\" rel=\"noopener noreferrer\"><span style=\"font-weight:400\">Zcash community forum<\/span><\/a><span style=\"font-weight:400\">, the team walked through the vulnerability and outlined next steps, including proposals to strengthen supply verification so a similar flaw could be detected and contained far more quickly in the future.<\/span><\/p>\n<figure id=\"attachment_820283\" aria-describedby=\"caption-attachment-820283\" style=\"width:888px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-820283\" title=\"Zcash Patches Critical Bug Enabling Unlimited Counterfeit ZEC Minting as Prices Crashes 41%\" src=\"https:\/\/static.news.bitcoin.com\/wp-content\/uploads\/2026\/06\/zcash-patches-critical-bug-enbabling-unlimited-counterfeit-zec-minting-as-prices-crashes-352_nwmk.jpg\" alt=\"Zcash Patches Critical Bug Enabling Unlimited Counterfeit ZEC Minting as Prices Crashes 41%\" width=\"888\" height=\"383\" srcset=\"https:\/\/static.news.bitcoin.com\/wp-content\/uploads\/2026\/06\/zcash-patches-critical-bug-enbabling-unlimited-counterfeit-zec-minting-as-prices-crashes-352_nwmk-300x129.jpg 300w, https:\/\/static.news.bitcoin.com\/wp-content\/uploads\/2026\/06\/zcash-patches-critical-bug-enbabling-unlimited-counterfeit-zec-minting-as-prices-crashes-352_nwmk-768x331.jpg 768w, https:\/\/static.news.bitcoin.com\/wp-content\/uploads\/2026\/06\/zcash-patches-critical-bug-enbabling-unlimited-counterfeit-zec-minting-as-prices-crashes-352_nwmk.jpg 888w\" sizes=\"auto, (max-width: 888px) 100vw, 888px\"\/><figcaption id=\"caption-attachment-820283\" class=\"wp-caption-text\">Image source: Zcash<\/figcaption><\/figure>\n<p><span style=\"font-weight:400\">Despite the severity, developers urged calm with Shielded Labs saying it was not \u201coverly concerned\u201d that counterfeiting had actually occurred, reasoning that the bug had survived years of review by some of the world\u2019s most capable cryptographers without being found or exploited. <\/span><\/p>\n<p><span style=\"font-weight:400\">Regardless, the timing is awkward for a privacy sector that has spent much of 2026 in the spotlight. <a href=\"https:\/\/www.bitcoin.com\/\" class=\"lar_link lar_link_outgoing\" target=\"_blank\" rel=\"noopener noreferrer\">Bitcoin.com<\/a> News reported last month that <\/span><a href=\"https:\/\/news.bitcoin.com\/privacy-coins-reclaim-spotlight-amid-global-pushback-against-financial-surveillance\/\"><span style=\"font-weight:400\">privacy tokens had been surging <\/span><\/a><span style=\"font-weight:400\">amid a global pushback against financial surveillance, with ZEC among the standout performers. The token had surged past $600 earlier in the cycle, at one point <\/span><a href=\"https:\/\/news.bitcoin.com\/zcash-surges-past-600-as-traders-drive-40-spike-flipping-monero-by-market-cap\/\"><span style=\"font-weight:400\">flipping monero<\/span><\/a><span style=\"font-weight:400\"> by market capitalization, before the Orchard scare wiped out part of those gains.<\/span><\/p>\n<h2><span style=\"font-weight:400\">What the Bug Means for ZEC Holders<\/span><\/h2>\n<p><span style=\"font-weight:400\">For holders, the immediate cost was price as ZEC shed roughly a third of its value within a day, unwinding a meaningful slice of a rally that had made it one of the year\u2019s best-performing <a href=\"http:\/\/www.bitcoin.com\/get-started\/a-quick-introduction-to-crypto\/\" class=\"lar_link lar_link_outgoing\" target=\"_blank\" rel=\"noopener noreferrer\">crypto<\/a> assets. The harder problem is reputational since a <a href=\"http:\/\/www.bitcoin.com\/get-started\/what-are-privacy-coins\/\" class=\"lar_link lar_link_outgoing\" target=\"_blank\" rel=\"noopener noreferrer\">privacy coin<\/a>\u2019s entire pitch rests on mathematical certainty, and an assurance that reads \u201cwe are reasonably confident no one counterfeited\u201d is softer than the airtight guarantees the category usually advertises to buyers.<\/span><\/p>\n<figure id=\"attachment_820286\" aria-describedby=\"caption-attachment-820286\" style=\"width:1211px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-820286\" title=\"Zcash Patches Critical Bug Enabling Unlimited Counterfeit ZEC Minting as Prices Crashes 41%\" src=\"https:\/\/static.news.bitcoin.com\/wp-content\/uploads\/2026\/06\/zcash-patches-critical-bug-enbabling-unlimited-counterfeit-zec-minting-as-prices-crashes-353_nwmk.jpg\" alt=\"Zcash Patches Critical Bug Enabling Unlimited Counterfeit ZEC Minting as Prices Crashes 41%\" width=\"1211\" height=\"521\" srcset=\"https:\/\/static.news.bitcoin.com\/wp-content\/uploads\/2026\/06\/zcash-patches-critical-bug-enbabling-unlimited-counterfeit-zec-minting-as-prices-crashes-353_nwmk-300x129.jpg 300w, https:\/\/static.news.bitcoin.com\/wp-content\/uploads\/2026\/06\/zcash-patches-critical-bug-enbabling-unlimited-counterfeit-zec-minting-as-prices-crashes-353_nwmk-1024x441.jpg 1024w, https:\/\/static.news.bitcoin.com\/wp-content\/uploads\/2026\/06\/zcash-patches-critical-bug-enbabling-unlimited-counterfeit-zec-minting-as-prices-crashes-353_nwmk-768x330.jpg 768w, https:\/\/static.news.bitcoin.com\/wp-content\/uploads\/2026\/06\/zcash-patches-critical-bug-enbabling-unlimited-counterfeit-zec-minting-as-prices-crashes-353_nwmk.jpg 1211w\" sizes=\"auto, (max-width: 1211px) 100vw, 1211px\"\/><figcaption id=\"caption-attachment-820286\" class=\"wp-caption-text\">Image source: Coingecko<\/figcaption><\/figure>\n<p><span style=\"font-weight:400\">The counterargument is that the disclosure process worked as designed, since an independent researcher found the flaw and reported it before any confirmed abuse. Moreover, major networks from <a href=\"https:\/\/www.binance.com\/en\/price\/bitcoin\" class=\"lar_link lar_link_outgoing\" target=\"_blank\" rel=\"noopener noreferrer\">Bitcoin<\/a> to Ethereum have weathered serious bugs too in the past (all of which were caught and fixed before they could be weaponized). <\/span><\/p>\n<p><span style=\"font-weight:400\">The test for Zcash now is whether its planned supply-verification upgrades can turn a frightening near miss into a credibility win rather than a lasting stain.<\/span><\/p>\n<p><span style=\"font-weight:400\">Zcash\u2019s privacy peers rode the same wave of demand this year, with <\/span><a href=\"https:\/\/news.bitcoin.com\/zec-and-dash-lead-privacy-coin-rally-as-sector-market-cap-jumps-8-to-26-6-billion\/\"><span style=\"font-weight:400\">ZEC and DASH<\/span><\/a><span style=\"font-weight:400\"> leading a broad sector rally that pushed combined market value sharply higher. Institutional interest had also been building, with Grayscale moving toward a <\/span><a href=\"https:\/\/news.bitcoin.com\/privacy-coin-zec-soars-after-thorswap-support-and-grayscale-trust-announcement\/\"><span style=\"font-weight:400\">regulated ZEC product<\/span><\/a><span style=\"font-weight:400\">. <\/span><\/p>\n<p><span style=\"font-weight:400\">Whether the Orchard episode becomes a footnote or a turning point will hinge on what developers ship next and on whether the market treats a patched, apparently unexploited bug as a warning shot or a reason to walk away.<\/span><\/p>\n<p> <!-- --><\/div>\n<p><a href=\"https:\/\/news.bitcoin.com\/zcash-orchard-counterfeiting-bug-patched\/\">Source link <\/a><br \/>\n<br \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>(Originally posted on : Bitcoin News ) Key Takeaways Researcher Taylor Hornby found an Orchard flaw on May 29 that could mint unlimited counterfeit ZEC. ZEC dropped more than 40% over the past 24 hours as holders weighed whether fake coins had entered the shielded pool. Zcash developers patched the bug and proposed supply-verification upgrades [&hellip;]<\/p>\n","protected":false},"author":3947362404,"featured_media":73600,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[32],"tags":[],"_links":{"self":[{"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/posts\/73599"}],"collection":[{"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/users\/3947362404"}],"replies":[{"embeddable":true,"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/comments?post=73599"}],"version-history":[{"count":0,"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/posts\/73599\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/media\/73600"}],"wp:attachment":[{"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/media?parent=73599"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/categories?post=73599"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/crowdfundjunction.com\/blog\/wp-json\/wp\/v2\/tags?post=73599"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}