{"id":209568,"date":"2026-08-06T09:06:46","date_gmt":"2026-08-06T09:06:46","guid":{"rendered":"https:\/\/mycryptomania.com\/?p=209568"},"modified":"2026-08-06T09:06:46","modified_gmt":"2026-08-06T09:06:46","slug":"how-a-five-year-old-build-flag-drained-116-million-from-bitcoins-most-trusted-hardware-wallet","status":"publish","type":"post","link":"https:\/\/mycryptomania.com\/?p=209568","title":{"rendered":"How a five-year-old build flag drained $116 million from bitcoin\u2019s most trusted hardware wallet"},"content":{"rendered":"<p>A single line of firmware shipped in March 2021 told every Coldcard hardware wallet to skip its dedicated randomness chip. For five years nobody noticed. Then an attacker brute-forced the weak seeds in 41 minutes, draining 1,816 BTC from more\u2026<\/p>","protected":false},"excerpt":{"rendered":"<p>A single line of firmware shipped in March 2021 told every Coldcard hardware wallet to skip its dedicated randomness chip. For five years nobody noticed. Then an attacker brute-forced the weak seeds in 41 minutes, draining 1,816 BTC from more\u2026<\/p>\n","protected":false},"author":0,"featured_media":209569,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-209568","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/mycryptomania.com\/index.php?rest_route=\/wp\/v2\/posts\/209568"}],"collection":[{"href":"https:\/\/mycryptomania.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mycryptomania.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/mycryptomania.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=209568"}],"version-history":[{"count":0,"href":"https:\/\/mycryptomania.com\/index.php?rest_route=\/wp\/v2\/posts\/209568\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mycryptomania.com\/index.php?rest_route=\/wp\/v2\/media\/209569"}],"wp:attachment":[{"href":"https:\/\/mycryptomania.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=209568"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mycryptomania.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=209568"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mycryptomania.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=209568"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}