{"id":168546,"date":"2026-08-04T18:40:11","date_gmt":"2026-08-04T18:40:11","guid":{"rendered":"https:\/\/www.europesays.com\/cz\/168546\/"},"modified":"2026-08-04T18:40:11","modified_gmt":"2026-08-04T18:40:11","slug":"z-penezenek-mizely-bitcoiny-btc-kauza-v-otazkach-a-odpovedich","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/cz\/168546\/","title":{"rendered":"Z pen\u011b\u017eenek mizely bitcoiny (BTC). Kauza v ot\u00e1zk\u00e1ch a odpov\u011bd\u00edch"},"content":{"rendered":"

Dr\u017eitele bitcoinu tr\u00e1p\u00ed daleko v\u011bt\u0161\u00ed probl\u00e9m ne\u017e leto\u0161n\u00ed cenov\u00e9 tr\u00e1pen\u00ed<\/a> nejv\u011bt\u0161\u00ed kryptom\u011bny. Ta od \u0159\u00edjnov\u00fdch maxim odepsala polovinu sm\u011bnn\u00e9ho kurzu, tis\u00edce jej\u00edch dr\u017eitel\u016f ale p\u0159i\u0161ly v posledn\u00edch dnech o v\u0161echny bitcoiny. Navzdory tomu, \u017ee ud\u011blali v\u0161e zd\u00e1nliv\u011b spr\u00e1vn\u011b. To znamen\u00e1, \u017ee nesv\u011b\u0159ili kl\u00ed\u010de od sv\u00fdch bitcoin\u016f \u017e\u00e1dn\u00e9mu spr\u00e1vci typu burzy nebo fondu a virtu\u00e1ln\u00ed mince si dr\u017eeli v hardwarov\u00e9 pen\u011b\u017eence. P\u0159esto do\u0161lo k jejich kr\u00e1de\u017ei.\u00a0<\/p>\n

Z pen\u011b\u017eenek s n\u00e1zvem Coldcard od kanadsk\u00e9 spole\u010dnosti Coinkite u\u017eivatel\u016fm bez jejich v\u011bdom\u00ed od \u010dtvrtka zmizely bitcoiny v odhadovan\u00e9 hodnot\u011b kolem 114 milion\u016f dolar\u016f. Podle Alexe Thorna z Galaxy Research<\/a> dal\u0161\u00ed vlna \u00fatoku nejsp\u00ed\u0161 pokra\u010dovala i b\u011bhem pond\u011bl\u00ed.\u00a0<\/p>\n

\n\t\t\t\tAnketa\n\t\t\t<\/p>\n

\n\t\t\t\tPou\u017e\u00edv\u00e1te n\u011bkterou z hardwarov\u00fdch kryptopen\u011b\u017eenek?\n\t\t\t<\/p>\n

\u201eLoupe\u017e hodnoty p\u0159es 100 milion\u016f dolar\u016f by byla druhou nejv\u011bt\u0161\u00ed v historii Spojen\u00fdch st\u00e1t\u016f hned po vykraden\u00ed bostonsk\u00e9ho muzea v roce 1990. Jen\u017ee ve sv\u011bt\u011b krypta by se \u00fatok na Coldcard neza\u0159adil ani mezi des\u00edtku nejv\u011bt\u0161\u00edch kr\u00e1de\u017e\u00ed virtu\u00e1ln\u00edch m\u011bn,\u201c vysv\u011btluje<\/a> analytik Bloombergu Eric Balchunas.\u00a0<\/p>\n

Pro\u010d lid\u00e9 dr\u017e\u00ed bitcoiny v HW pen\u011b\u017eence?<\/p>\n

Hardwarov\u00e1 kryptopen\u011b\u017eenka je za\u0159\u00edzen\u00ed p\u0159ipom\u00ednaj\u00edc\u00ed USB disk nebo kalkula\u010dku, v p\u0159\u00edpad\u011b Coldcard. Skaln\u00ed dr\u017eitel\u00e9 bitcoinu pova\u017euj\u00ed tyto produkty za nejbezpe\u010dn\u011bj\u0161\u00ed pro dlouhodob\u00e9 uchov\u00e1v\u00e1n\u00ed kryptom\u011bn, proto\u017ee p\u0159i tom nemusej\u00ed spol\u00e9hat na protistranu v podob\u011b fondu nebo burzy. Hardwarovou pen\u011b\u017eenku si lze zjednodu\u0161en\u011b p\u0159edstavit jako pomyslnou truhlu, od kter\u00e9 nem\u00e1 kl\u00ed\u010de nikdo krom\u011b jej\u00edho majitele. A to ani v\u00fdrobce \u201etruhly\u201c. Nebo by aspo\u0148 nem\u011bl m\u00edt.\u00a0<\/p>\n

Na rozd\u00edl od kryptoburzy nebo burzovn\u011b obchodovan\u00e9ho fondu tak\u00e9 umo\u017e\u0148uje hardwarov\u00e1 pen\u011b\u017eenka pou\u017e\u00edvat v n\u00ed dr\u017een\u00e9 bitcoiny k placen\u00ed a obecn\u011b s nimi nap\u0159\u00edmo nakl\u00e1dat. Kl\u00ed\u010dov\u00fdm faktorem jej\u00ed bezpe\u010dnosti je fakt, \u017ee k odemyk\u00e1n\u00ed prost\u0159edk\u016f doch\u00e1z\u00ed v naprost\u00e9 izolaci od internetu. Priv\u00e1tn\u00ed kl\u00ed\u010de, tedy digit\u00e1ln\u00ed obdoba kl\u00ed\u010de k on\u00e9 truhle, toti\u017e za\u0159\u00edzen\u00ed nikdy neopust\u00ed.\u00a0<\/p>\n

V \u010dem kryptopen\u011b\u017eenka Coldcard selhala?<\/p>\n

Kl\u00ed\u010de od bitcoin\u016f v hardwarov\u00e9 pen\u011b\u017eence maj\u00ed podobu specifick\u00e9 a n\u00e1hodn\u00e9 kombinace 12 nebo 24 slov, takzvan\u00e9ho seedu, kter\u00fd pen\u011b\u017eenka vygeneruje p\u0159i prvn\u00edm zapnut\u00ed. Kdo seed zn\u00e1, m\u00e1 jistotu, \u017ee se ke sv\u00fdm bitcoin\u016fm dostane v\u017edy a v\u0161ude. I v p\u0159\u00edpad\u011b, \u017ee by nap\u0159\u00edklad pen\u011b\u017eenku ztratil. Jednodu\u0161e by si sehnal novou a pomoc\u00ed seedu si odemkl p\u0159\u00edstup ke sv\u00fdm bitcoin\u016fm. Jen\u017ee n\u011bco podobn\u00e9ho ud\u011blali i \u00fato\u010dn\u00edci v aktu\u00e1ln\u00ed kauze.\u00a0<\/p>\n

Probl\u00e9m Coldcard se uk\u00e1zal v tom, \u017ee kombinace slov v seedu nebyla dostate\u010dn\u011b n\u00e1hodn\u00e1. V ur\u010dit\u00fdch verz\u00edch jej\u00edho firmwaru do\u0161lo k chyb\u011b, kv\u016fli kter\u00e9 nemohla Coldcard vytvo\u0159it seed pomoc\u00ed sv\u00e9ho do t\u00e9 doby funk\u010dn\u00edho gener\u00e1toru n\u00e1hodn\u00fdch dat. Nam\u00edsto toho za\u0159\u00edzen\u00ed za\u010dalo bez jasn\u00e9ho upozorn\u011bn\u00ed vytv\u00e1\u0159et seed relativn\u011b p\u0159edv\u00eddateln\u00fdm zp\u016fsobem odvozen\u00fdm mimo jin\u00e9 od s\u00e9riov\u00fdch \u010d\u00edsel pen\u011b\u017eenek. \u00dato\u010dn\u00edk nebo skupina \u00fato\u010dn\u00edk\u016f pak dok\u00e1zali pomoc\u00ed vlastn\u00edho v\u00fdpo\u010detn\u00edho v\u00fdkonu jednotliv\u00e9 u\u017e existuj\u00edc\u00ed seedy uh\u00e1dnout.\u00a0<\/p>\n

P\u0159i standardn\u00edm fungov\u00e1n\u00ed pen\u011b\u017eenky Coldcard a hardwarov\u00fdch kryptopen\u011b\u017eenek obecn\u011b by jim ale prolomen\u00ed seedu hrubou silou pomoc\u00ed n\u00e1hodn\u00fdch pokus\u016f trvalo \u0159\u00e1dov\u011b miliardy let i s ve\u0161kerou v\u00fdpo\u010detn\u00ed silou na Zemi, co\u017e je hlavn\u00ed princip bezpe\u010dnosti<\/a> bitcoinov\u00fdch pen\u011b\u017eenek.\u00a0<\/p>\n

M\u016f\u017ee se to t\u00fdkat i \u010desk\u00e9ho Trezoru?<\/p>\n

Historicky prvn\u00ed hardwarov\u00e9 kryptopen\u011b\u017eenky na sv\u011bt\u011b se kauza net\u00fdk\u00e1. Za\u0159\u00edzen\u00ed Trezor, jeho\u017e p\u016fvodn\u00ed verze \u0161la do prodeje u\u017e v roce 2014, generuje seed odli\u0161n\u00fdm zp\u016fsobem ne\u017e Coldcard. K dosa\u017een\u00ed co nejvy\u0161\u0161\u00ed mo\u017en\u00e9 nahodilosti vyu\u017e\u00edv\u00e1 prvky n\u00e1hody z r\u016fzn\u00fdch zdroj\u016f. A to takov\u00fdm zp\u016fsobem, \u017ee ani selh\u00e1n\u00ed jednoho z nich by nevedlo k ohro\u017een\u00ed bezpe\u010dnosti seedu, ubezpe\u010duje<\/a> firma v ofici\u00e1ln\u00edm prohl\u00e1\u0161en\u00ed.\u00a0<\/p>\n

Nemohli u\u017eivatel\u00e9 Coldcard ud\u011blat n\u011bco p\u0159ece jen l\u00e9pe?<\/p>\n

O bitcoiny by nejsp\u00ed\u0161 nep\u0159i\u0161li ti majitel\u00e9 Coldcard, kte\u0159\u00ed by se pokusili do ochrany sv\u00fdch virtu\u00e1ln\u00edch minc\u00ed zapojit dal\u0161\u00ed bezpe\u010dnostn\u00ed prvky. Hardwarov\u00e9 pen\u011b\u017eenky v\u010detn\u011b Coldcard umo\u017e\u0148uj\u00ed p\u0159idat k seedu je\u0161t\u011b jedno nebo n\u011bkolik vlastn\u00edch slov, takzvanou passphrase.\u00a0<\/p>\n

To m\u016f\u017ee v\u00fdrazn\u011b zt\u00ed\u017eit pokusy o uh\u00e1dnut\u00ed tohoto kl\u00ed\u010de k bitcoin\u016fm v kryptopen\u011b\u017eence. Z n\u011bkter\u00fdch pen\u011b\u017eenek Coldcard ale zmizely i bitcoiny chr\u00e1n\u011bn\u00e9 nedostate\u010dn\u011b slo\u017eitou passphrase. Typicky ji tvo\u0159ilo jedno nebo dv\u011b b\u011b\u017en\u011b pou\u017e\u00edvan\u00e1 anglick\u00e1 slova.\u00a0<\/p>\n

Je\u0161t\u011b obez\u0159etn\u011bj\u0161\u00ed dr\u017eitel\u00e9 nejv\u011bt\u0161\u00ed virtu\u00e1ln\u00ed m\u011bny by si ji ale zabezpe\u010dili pro jistotu po vzoru \u010desk\u00fdch korunova\u010dn\u00edch klenot\u016f. Mohou si nastavit, \u017ee odesl\u00e1n\u00ed bitcoinu bude vy\u017eadovat odemknut\u00ed transakce kl\u00ed\u010di z minim\u00e1ln\u011b dvou r\u016fzn\u00fdch kryptopen\u011b\u017eenek. A nemusej\u00ed b\u00fdt ani od stejn\u00e9ho v\u00fdrobce, co\u017e minimalizuje riziko produktov\u00e9ho selh\u00e1n\u00ed jako v p\u0159\u00edpad\u011b Coldcard. Takov\u00e9 nastaven\u00ed ale u\u017e vy\u017eaduje pokro\u010dilej\u0161\u00ed digit\u00e1ln\u00ed kompetence ne\u017e z\u00e1kladn\u00ed obsluha kryptopen\u011b\u017eenky.\u00a0<\/p>\n

Ukradli bitcoiny Severokorejci?<\/p>\n

O pachateli nebo pachatel\u00edch \u00fatok\u016f na pen\u011b\u017eenky Coldcard se zat\u00edm jen spekuluje. Nelze vylou\u010dit ani roli hacker\u016f ze Severn\u00ed Koreje. Ti u\u017e v minulosti prosluli kyber\u00fatoky na kryptoburzy i decentralizovan\u00e9 protokoly pro krypto\u00fav\u011bry. Takto z\u00edskan\u00fdmi prost\u0159edky pom\u00e1hali sponzorovat tamn\u00ed re\u017eim.\u00a0<\/p>\n

Dostanou u\u017eivatel\u00e9 Coldcard bitcoiny zp\u011bt?<\/p>\n

\u0160ance nen\u00ed velk\u00e1. Obecn\u011b plat\u00ed, \u017ee bitcoinov\u00e9 transakce nen\u00ed mo\u017en\u00e9 zvr\u00e1tit. \u00da\u0159ady by musely vyp\u00e1trat pachatele i ukraden\u00e9 bitcoiny. P\u0159\u00edpadn\u011b by odcizen\u00e9 virtu\u00e1ln\u00ed mince mohly identifikovat a zablokovat kryptoburzy, pokud by je p\u0159es n\u011b cht\u011bli \u00fato\u010dn\u00edci sm\u011bnit. \u010c\u00e1st u\u017eivatel\u016f spekuluje<\/a> nad mo\u017enost\u00ed podat na v\u00fdrobce pen\u011b\u017eenky hromadnou \u017ealobu kv\u016fli jeho pochyben\u00ed. Samostatnou ot\u00e1zkou je, zda by spole\u010dnost s odhadovan\u00fdmi tr\u017ebami<\/a> v \u0159\u00e1du des\u00edtek milion\u016f dolar\u016f ro\u010dn\u011b m\u011bla pen\u00edze na vyplacen\u00ed od\u0161kodn\u011bn\u00ed v mo\u017en\u00e9 n\u011bkolikan\u00e1sobn\u00e9 v\u00fd\u0161i.\u00a0<\/p>\n

Bitcoin a kryptom\u011bny: V\u0161e, co byste m\u011bli v\u011bd\u011bt<\/p>\n

Sv\u011bt kryptom\u011bn m\u016f\u017ee b\u00fdt pro n\u011bkter\u00e9 m\u00e9n\u011b zku\u0161en\u00e9 investory komplikovan\u00fd. N\u00e1sleduj\u00edc\u00ed \u010dl\u00e1nky na e15.cz jsou ur\u010deny p\u0159ev\u00e1\u017en\u011b nov\u00fdm z\u00e1jemc\u016fm o investov\u00e1n\u00ed do kryptom\u011bn. Najdete v nich konkr\u00e9tn\u00ed postupy, rady a informace t\u00fdkaj\u00edc\u00ed se i t\u011bch nejz\u00e1kladn\u011bj\u0161\u00edch aspekt\u016f investov\u00e1n\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"Dr\u017eitele bitcoinu tr\u00e1p\u00ed daleko v\u011bt\u0161\u00ed probl\u00e9m ne\u017e leto\u0161n\u00ed cenov\u00e9 tr\u00e1pen\u00ed nejv\u011bt\u0161\u00ed kryptom\u011bny. Ta od \u0159\u00edjnov\u00fdch maxim odepsala polovinu…\n","protected":false},"author":2,"featured_media":168547,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[12],"tags":[3244,32049,67,68,41480,41479,778,41478,41481,41477,2186,22948],"class_list":["post-168546","post","type-post","status-publish","format-standard","has-post-thumbnail","category-byznys","tag-bitcoin","tag-blockchain","tag-business","tag-byznys","tag-coinkite","tag-coldcard","tag-kryptomeny","tag-kryptopenezenka","tag-passphrase","tag-seed","tag-severni-korea","tag-trezor"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@cz\/117038705743372856","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/168546","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/comments?post=168546"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/168546\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media\/168547"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media?parent=168546"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/categories?post=168546"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/tags?post=168546"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}