{"id":741964,"date":"2026-07-31T06:35:20","date_gmt":"2026-07-31T03:35:20","guid":{"rendered":"https:\/\/buradabiliyorum.com\/en\/coldcard-issues-mk3-warning-as-experts-examine-38m-bitcoin-wallet-drain\/"},"modified":"2026-07-31T06:35:20","modified_gmt":"2026-07-31T03:35:20","slug":"coldcard-issues-mk3-warning-as-experts-examine-38m-bitcoin-wallet-drain","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/coldcard-issues-mk3-warning-as-experts-examine-38m-bitcoin-wallet-drain\/","title":{"rendered":"Coldcard issues Mk3 warning as experts examine $38M Bitcoin wallet drain"},"content":{"rendered":"<p style=\"float:right;margin:0 0 10px 15px;width:240px\"><img decoding=\"async\" src=\"https:\/\/s3-images.ctmedia.io\/media\/article-covers\/thief-bitcoin.jpg\" alt=\"Coldcard issues Mk3 warning as experts examine $38M Bitcoin wallet drain\" class=\"type:primaryImage\"><\/p>\n<p>Coinkite urged Coldcard Mk3 users to migrate funds after identifying a potential seed-generation risk, as Bitcoin security experts separately examine an unexplained $38 million wallet drain.<\/p>\n<p>Canadian Bitcoin hardware maker Coinkite has warned users of its Coldcard Mk3 signing device to move funds from wallets whose seed phrases were generated on affected firmware.&nbsp;<\/p>\n<p>On Thursday, Coinkite <a rel=\"nofollow\" target=\"_blank\" href=\"https:\/\/blog.coinkite.com\/coldcard-mk3-seed-generation-warning\/\">said<\/a> seeds created on an Mk3 running firmware version 4.0.1, released in March 2021, or any later Mk3 version may put funds at risk. The issue extends through version 5.0.3, the final firmware supporting the Mk3, while the Mk4, Q and Mk5 are not affected, according to the company\u2019s early analysis.<\/p>\n<p>The warning comes as Bitcoin security specialists examine an unexplained, coordinated sweep involving 594.48 BTC from single-signature addresses. However, no definitive public evidence has established that the Mk3 issue caused those transfers.<\/p>\n<p>Read more<\/p>\n<\/p>\n<blockquote><p><strong><span style=\"color: #ff6600;\">If you liked the article, do not forget to share it with your friends. Follow us on\u00a0<span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/news.google.com\/publications\/CAAqBwgKMN63nwsw68G3Aw\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google News<\/a><\/span>\u00a0too, click on the star and choose us from your favorites.<\/span><\/strong><\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\"><strong>If you want to read more <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/news\/\" data-internallinksmanager029f6b8e52c=\"2\" title=\"News\" target=\"_blank\" rel=\"noopener\">News<\/a> articles, you can visit our <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/buradabiliyorum.com\/en\/category\/general\/\" target=\"_blank\" >General category.<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<p><span style=\"color: black;\"><a style=\"color: #ff9900;\" href=\"https:\/\/cointelegraph.com\/news\/coldcard-mk3-warning-594-btc-sweep?utm_source=rss_feed&#038;utm_medium=feed&#038;utm_campaign=rss_partner_inbound\" target=\"_blank\" >Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Coinkite urged Coldcard Mk3 users to migrate funds after identifying a potential seed-generation risk, as Bitcoin security experts separately examine an unexplained $38 million wallet drain. Canadian Bitcoin hardware maker Coinkite has warned users of its Coldcard Mk3 signing device to move funds from wallets whose seed phrases were generated on affected firmware.&nbsp; On Thursday,&#8230;<\/p>\n","protected":false},"author":1,"featured_media":741965,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/s3-images.ctmedia.io\/media\/article-covers\/thief-bitcoin.jpg","fifu_image_alt":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-741964","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/741964","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=741964"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/741964\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/741965"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=741964"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=741964"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=741964"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}