{"id":744665,"date":"2026-08-21T14:20:25","date_gmt":"2026-08-21T11:20:25","guid":{"rendered":"https:\/\/buradabiliyorum.com\/en\/coldcard-strengthens-seed-generation-with-firmware-update\/"},"modified":"2026-08-21T14:20:25","modified_gmt":"2026-08-21T11:20:25","slug":"coldcard-strengthens-seed-generation-with-firmware-update","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/coldcard-strengthens-seed-generation-with-firmware-update\/","title":{"rendered":"Coldcard strengthens seed generation with firmware update"},"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\/crimes-code-tweezers-theft-hack-hacker-red-wallet-1.jpg\" alt=\"Coldcard strengthens seed generation with firmware update\" class=\"type:primaryImage\"><\/p>\n<p>Coinkite urged Coldcard users to generate new seed phrases, warning that existing vulnerable seeds remain unsafe despite the security upgrade.<\/p>\n<p>Coinkite released a new security upgrade to strengthen seed phrase generation by requiring user-supplied entropy mixed with improved device randomness.<\/p>\n<p>Coinkite announced firmware 5.6.1 for Coldcard Mk4 and Mk5 devices and 1.5.1Q for the Coldcard Q in a Thursday blog <a rel=\"nofollow\" target=\"_blank\" href=\"https:\/\/blog.coinkite.com\/coldcard-security-update-5.6.1-1.5.1q\/\" rel=\"noopener noreferrer\" target=\"_blank\">post<\/a>.<\/p>\n<p>The release requires newly generated seeds to include user-supplied entropy through at least 65 keypresses with unpredictable timing, 50 rolls of a six-sided die or 128 coin flips. That input is combined with randomness from multiple device sources, including its secure elements and hardware random-number generator (RNG).<\/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-upgrade-strengthen-seed-phrase-generation?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 users to generate new seed phrases, warning that existing vulnerable seeds remain unsafe despite the security upgrade. Coinkite released a new security upgrade to strengthen seed phrase generation by requiring user-supplied entropy mixed with improved device randomness. Coinkite announced firmware 5.6.1 for Coldcard Mk4 and Mk5 devices and 1.5.1Q for the Coldcard&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-744665","post","type-post","status-publish","format-standard","hentry","category-general"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/744665","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=744665"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/744665\/revisions"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=744665"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=744665"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=744665"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}