{"id":21398,"date":"2026-08-03T09:28:30","date_gmt":"2026-08-03T09:28:30","guid":{"rendered":"https:\/\/cryptozen.asia\/vn\/coldcard-day-bitcoin-tro-lai-cac-san-giao-dich-giao-dich-chong-tu-quan-ly\/"},"modified":"2026-08-03T09:28:30","modified_gmt":"2026-08-03T09:28:30","slug":"coldcard-day-bitcoin-tro-lai-cac-san-giao-dich-giao-dich-chong-tu-quan-ly","status":"publish","type":"post","link":"https:\/\/cryptozen.asia\/vn\/coldcard-day-bitcoin-tro-lai-cac-san-giao-dich-giao-dich-chong-tu-quan-ly\/","title":{"rendered":"Coldcard \u0110\u1ea9y Bitcoin Tr\u1edf L\u1ea1i C\u00e1c S\u00e0n Giao D\u1ecbch: Giao D\u1ecbch Ch\u1ed1ng T\u1ef1 Qu\u1ea3n L\u00fd"},"content":{"rendered":"<h2>L\u1ed7 h\u1ed5ng Coldcard v\u00e0 T\u00e1c \u0111\u1ed9ng c\u1ee7a N\u00f3<\/h2>\n<p>L\u1ed7 h\u1ed5ng <strong>Coldcard<\/strong> kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng theo c\u00e1ch m\u00e0 h\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi hi\u1ec3u. Kh\u00f4ng ai \u0111\u00e3 x\u00e2m nh\u1eadp v\u00e0o b\u1ea5t c\u1ee9 \u0111i\u1ec1u g\u00ec, kh\u00f4ng ai \u0111\u00e3 l\u1eeba \u0111\u1ea3o ai, v\u00e0 kh\u00f4ng ai \u0111\u00e3 \u0111\u00e1nh c\u1eafp c\u1ee5m t\u1eeb h\u1ea1t t\u1eeb m\u1ed9t t\u1edd ghi ch\u00fa. C\u00e1c thi\u1ebft b\u1ecb \u0111\u00e3 t\u1ea1o ra c\u00e1c <strong>kh\u00f3a ri\u00eang y\u1ebfu<\/strong> trong su\u1ed1t n\u0103m n\u0103m, v\u00e0 m\u1ed9t k\u1ebb t\u1ea5n c\u00f4ng \u0111\u00e3 t\u00ecm ra c\u00e1ch \u0111\u1ec3 \u0111o\u00e1n ch\u00fang. S\u1ef1 ph\u00e2n bi\u1ec7t n\u00e0y r\u1ea5t quan tr\u1ecdng v\u00ec n\u00f3 \u0111\u00e1nh v\u00e0o n\u1ec1n t\u1ea3ng c\u1ee7a l\u1eadp lu\u1eadn t\u1ef1 qu\u1ea3n l\u00fd.<\/p>\n<h2>Tri\u1ebft l\u00fd T\u1ef1 Qu\u1ea3n L\u00fd v\u00e0 Coldcard<\/h2>\n<p>L\u1eddi qu\u1ea3ng b\u00e1 cho v\u00ed ph\u1ea7n c\u1ee9ng lu\u00f4n \u0111\u01a1n gi\u1ea3n: &#8220;<strong>kh\u00f3a c\u1ee7a b\u1ea1n, \u0111\u1ed3ng ti\u1ec1n c\u1ee7a b\u1ea1n, kh\u00f4ng c\u00f3 r\u1ee7i ro \u0111\u1ed1i t\u00e1c<\/strong>.&#8221; Coldcard \u0111\u01b0\u1ee3c coi l\u00e0 ti\u00eau chu\u1ea9n v\u00e0ng c\u1ee7a tri\u1ebft l\u00fd n\u00e0y: t\u00e1ch bi\u1ec7t, m\u00e3 ngu\u1ed3n m\u1edf, ch\u1ec9 h\u1ed7 tr\u1ee3 Bitcoin, v\u00e0 \u0111\u01b0\u1ee3c c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u b\u1ea3o m\u1eadt c\u0169ng nh\u01b0 c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd t\u1ed5 ch\u1ee9c c\u00f4ng nh\u1eadn l\u00e0 thi\u1ebft b\u1ecb \u0111\u00e1ng tin c\u1eady nh\u1ea5t trong h\u1ec7 sinh th\u00e1i.<\/p>\n<p>N\u1ebfu v\u00ed ph\u1ea7n c\u1ee9ng \u0111\u00e1ng tin c\u1eady nh\u1ea5t c\u00f3 th\u1ec3 ph\u00e1t h\u00e0nh m\u1ed9t l\u1ed7i entropy trong n\u0103m n\u0103m m\u00e0 kh\u00f4ng b\u1ecb ph\u00e1t hi\u1ec7n, c\u00e2u h\u1ecfi kh\u00f4ng c\u00f2n l\u00e0 li\u1ec7u Coldcard c\u00f3 th\u1ea5t b\u1ea1i hay kh\u00f4ng, m\u00e0 l\u00e0 li\u1ec7u b\u1ea5t k\u1ef3 v\u00ed ph\u1ea7n c\u1ee9ng n\u00e0o c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c tin c\u1eady nh\u01b0 l\u1edbp qu\u1ea3n l\u00fd duy nh\u1ea5t cho c\u00e1c kho\u1ea3n n\u1eafm gi\u1eef Bitcoin \u0111\u00e1ng k\u1ec3 hay kh\u00f4ng.<\/p>\n<h2>H\u00e0nh \u0110\u1ed9ng Th\u1ecb Tr\u01b0\u1eddng v\u00e0 C\u00e1c \u0110\u1ee3t T\u1ea5n C\u00f4ng<\/h2>\n<p>Th\u1ecb tr\u01b0\u1eddng \u0111ang tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi n\u00e0y b\u1eb1ng h\u00e0nh \u0111\u1ed9ng. \u0110\u1ee3t s\u00f3ng \u0111\u1ea7u ti\u00ean \u0111\u00e3 x\u1ea3y ra v\u00e0o l\u00fac 2:14 s\u00e1ng UTC ng\u00e0y 30 th\u00e1ng 7, khi m\u1ed9t th\u1ef1c th\u1ec3 duy nh\u1ea5t \u0111\u00e3 qu\u00e9t <strong>594 BTC<\/strong> t\u1eeb kho\u1ea3ng 500 v\u00ed trong v\u00f2ng 25 ph\u00fat. \u0110\u1ee3t s\u00f3ng th\u1ee9 hai di\u1ec5n ra v\u00e0o ng\u00e0y 1 th\u00e1ng 8, r\u00fat <strong>284,4 BTC<\/strong> t\u1eeb 2.889 \u0111\u1ecba ch\u1ec9. \u0110\u1ee3t s\u00f3ng th\u1ee9 ba x\u1ea3y ra sau \u0111\u00f3 trong ng\u00e0y v\u1edbi <strong>207,73 BTC<\/strong> qua m\u1ed9t c\u1ee5m \u0111\u1ecba ch\u1ec9 ri\u00eang bi\u1ec7t. \u0110\u1ee3t s\u00f3ng th\u1ee9 t\u01b0 \u0111\u1ebfn v\u00e0o ng\u00e0y 3 th\u00e1ng 8, v\u1edbi Alex Thorn t\u1eeb Galaxy Research x\u00e1c \u0111\u1ecbnh <strong>448,7 BTC<\/strong> di chuy\u1ec3n t\u1eeb 709 \u0111\u1ecba ch\u1ec9 nghi ng\u1edd l\u00e0 n\u1ea1n nh\u00e2n.<\/p>\n<blockquote>\n<p>\u01af\u1edbc t\u00ednh t\u1ed5ng h\u1ee3p \u0111\u1ee9ng \u1edf kho\u1ea3ng <strong>1.816 BTC<\/strong> qua 5.294 \u0111\u1ecba ch\u1ec9.<\/p>\n<\/blockquote>\n<h2>Nguy\u00ean Nh\u00e2n v\u00e0 H\u1ec7 Qu\u1ea3<\/h2>\n<p>Coinkite, nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 tr\u1ee5 s\u1edf t\u1ea1i Toronto, \u0111\u00e3 truy t\u00ecm v\u1ea5n \u0111\u1ec1 \u0111\u1ebfn m\u1ed9t <strong>thay \u0111\u1ed5i firmware<\/strong> v\u00e0o th\u00e1ng 3 n\u0103m 2021. M\u1ed9t b\u1ed9 b\u1ea3o v\u1ec7 ti\u1ec1n x\u1eed l\u00fd \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp \u0111\u1ec3 ch\u1ecdn b\u1ed9 t\u1ea1o s\u1ed1 ng\u1eabu nhi\u00ean ph\u1ea7n c\u1ee9ng trong qu\u00e1 tr\u00ecnh t\u1ea1o h\u1ea1t gi\u1ed1ng. H\u1ec7 th\u1ed1ng x\u00e2y d\u1ef1ng \u0111\u00e3 ch\u1ecdn m\u1ed9t ph\u01b0\u01a1ng \u00e1n d\u1ef1 ph\u00f2ng MicroPython x\u00e1c \u0111\u1ecbnh thay th\u1ebf. Firmware \u0111\u00e3 \u0111\u01b0\u1ee3c bi\u00ean d\u1ecbch m\u00e0 kh\u00f4ng c\u00f3 c\u1ea3nh b\u00e1o.<\/p>\n<p>Tr\u00ean c\u00e1c thi\u1ebft b\u1ecb Mk3, kh\u00f4ng gian t\u00ecm ki\u1ebfm hi\u1ec7u qu\u1ea3 \u0111\u00e3 gi\u1ea3m xu\u1ed1ng c\u00f2n kho\u1ea3ng <strong>40 bit<\/strong>. M\u1ed9t h\u1ea1t gi\u1ed1ng 128 bit c\u00f3 nhi\u1ec1u t\u1ed5 h\u1ee3p kh\u1ea3 thi h\u01a1n s\u1ed1 nguy\u00ean t\u1eed trong v\u0169 tr\u1ee5 quan s\u00e1t \u0111\u01b0\u1ee3c, trong khi m\u1ed9t h\u1ea1t gi\u1ed1ng 40 bit ch\u1ec9 c\u00f3 kho\u1ea3ng m\u1ed9t tri\u1ec7u tri\u1ec7u t\u1ed5 h\u1ee3p, n\u1eb1m trong t\u1ea7m v\u1edbi c\u1ee7a ph\u1ea7n c\u1ee9ng th\u00f4ng th\u01b0\u1eddng.<\/p>\n<h2>Thay \u0110\u1ed5i Tri\u1ebft L\u00fd Qu\u1ea3n L\u00fd<\/h2>\n<p>Sau khi FTX s\u1ee5p \u0111\u1ed5 v\u00e0o th\u00e1ng 11 n\u0103m 2022, c\u1ed9ng \u0111\u1ed3ng Bitcoin \u0111\u00e3 tr\u1ea3i qua m\u1ed9t s\u1ef1 thay \u0111\u1ed5i tri\u1ebft l\u00fd qu\u1ea3n l\u00fd \u0111\u00e1ng k\u1ec3. C\u00e2u n\u00f3i &#8220;<strong>kh\u00f4ng ph\u1ea3i kh\u00f3a c\u1ee7a b\u1ea1n, kh\u00f4ng ph\u1ea3i \u0111\u1ed3ng ti\u1ec1n c\u1ee7a b\u1ea1n<\/strong>&#8221; \u0111\u00e3 tr\u1edf th\u00e0nh l\u1eddi khuy\u00ean th\u1ef1c t\u1ebf h\u01a1n l\u00e0 m\u1ed9t kh\u1ea9u hi\u1ec7u. D\u1eef li\u1ec7u tr\u00ean chu\u1ed7i cho th\u1ea5y m\u1ed9t s\u1ef1 chuy\u1ec3n giao Bitcoin k\u00e9o d\u00e0i nhi\u1ec1u th\u00e1ng t\u1eeb c\u00e1c \u0111\u1ecba ch\u1ec9 s\u00e0n giao d\u1ecbch sang v\u00ed t\u1ef1 qu\u1ea3n l\u00fd.<\/p>\n<p>L\u1ed7 h\u1ed5ng Coldcard \u0111\u00e3 \u0111\u1ea3o ng\u01b0\u1ee3c d\u00f2ng ch\u1ea3y \u0111\u00f3. C\u00e1c chuy\u1ec3n giao r\u00f2ng t\u1eeb v\u00ed t\u1ef1 qu\u1ea3n l\u00fd sang c\u00e1c \u0111\u1ecba ch\u1ec9 s\u00e0n giao d\u1ecbch \u0111\u00e3 t\u00edch c\u1ef1c m\u1ed7i ng\u00e0y k\u1ec3 t\u1eeb ng\u00e0y 31 th\u00e1ng 7.<\/p>\n<h2>R\u1ee7i Ro T\u1ef1 Qu\u1ea3n L\u00fd<\/h2>\n<p>Ph\u00e9p t\u00ednh \u0111\u00f3 l\u00e0 s\u1ef1 chuy\u1ec3n m\u00ecnh trong c\u00e2u chuy\u1ec7n. T\u1ef1 qu\u1ea3n l\u00fd l\u1ebd ra ph\u1ea3i lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n r\u1ee7i ro \u0111\u1ed1i t\u00e1c. L\u1ed7 h\u1ed5ng Coldcard ch\u1ee9ng minh r\u1eb1ng t\u1ef1 qu\u1ea3n l\u00fd gi\u1edbi thi\u1ec7u m\u1ed9t lo\u1ea1i r\u1ee7i ro ri\u00eang: <strong>r\u1ee7i ro chu\u1ed7i cung \u1ee9ng, r\u1ee7i ro firmware, r\u1ee7i ro entropy<\/strong>, v\u00e0 r\u1ee7i ro r\u1eb1ng thi\u1ebft b\u1ecb m\u00e0 b\u1ea1n tin t\u01b0\u1edfng v\u1edbi c\u00e1c kh\u00f3a ri\u00eang c\u1ee7a b\u1ea1n kh\u00f4ng th\u1ef1c hi\u1ec7n nh\u1eefng g\u00ec nh\u00e0 s\u1ea3n xu\u1ea5t c\u1ee7a n\u00f3 tuy\u00ean b\u1ed1.<\/p>\n<h2>Kh\u1ea3 N\u0103ng Ph\u1ee5c H\u1ed3i v\u00e0 T\u01b0\u01a1ng Lai<\/h2>\n<p>Ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i t\u1ea1o ra c\u00e1c h\u1ea1t gi\u1ed1ng ho\u00e0n to\u00e0n m\u1edbi v\u00e0 chuy\u1ec3n qu\u1ef9 c\u1ee7a h\u1ecd. Block, Trezor v\u00e0 Ledger \u0111\u00e3 x\u00e1c nh\u1eadn r\u1eb1ng s\u1ea3n ph\u1ea9m c\u1ee7a h\u1ecd kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi l\u1ed7 h\u1ed5ng c\u1ee5 th\u1ec3 n\u00e0y. Tuy nhi\u00ean, l\u1ed7 h\u1ed5ng n\u00e0y ch\u1ee9ng minh r\u1eb1ng c\u00e1c l\u1ed7i entropy \u1edf c\u1ea5p firmware c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i kh\u00f4ng b\u1ecb ph\u00e1t hi\u1ec7n trong nhi\u1ec1u n\u0103m trong b\u1ea5t k\u1ef3 m\u00e3 ngu\u1ed3n m\u1edf n\u00e0o.<\/p>\n<p>Tri\u1ebft l\u00fd t\u1ef1 qu\u1ea3n l\u00fd s\u1ebd s\u1ed1ng s\u00f3t sau l\u1ed7 h\u1ed5ng Coldcard. C\u00e1c th\u1ecfa thu\u1eadn k\u00fd t\u00ean \u0111a ch\u1eef k\u00fd kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o b\u1ea5t k\u1ef3 thi\u1ebft b\u1ecb \u0111\u01a1n l\u1ebb n\u00e0o, v\u00ed ph\u1ea7n c\u1ee9ng t\u1eeb c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 m\u00e3 ngu\u1ed3n kh\u00e1c nhau, v\u00e0 c\u00e1c th\u1ef1c h\u00e0nh l\u01b0u tr\u1eef l\u1ea1nh k\u1ebft h\u1ee3p vi\u1ec7c tung x\u00fac x\u1eafc \u0111\u1ec3 t\u1ea1o entropy v\u1eabn l\u00e0 nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p h\u1ee3p l\u1ec7.<\/p>\n<h2>K\u1ebft Lu\u1eadn<\/h2>\n<p>L\u01b0u \u00fd: B\u00e0i vi\u1ebft n\u00e0y ch\u1ec9 mang t\u00ednh ch\u1ea5t th\u00f4ng tin v\u00e0 kh\u00f4ng c\u1ea5u th\u00e0nh l\u1eddi khuy\u00ean t\u00e0i ch\u00ednh, \u0111\u1ea7u t\u01b0 ho\u1eb7c ph\u00e1p l\u00fd. C\u00e1c \u01b0\u1edbc t\u00ednh thi\u1ec7t h\u1ea1i d\u1ef1a tr\u00ean ph\u00e2n t\u00edch blockchain c\u1ee7a b\u00ean th\u1ee9 ba v\u00e0 ch\u01b0a \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn b\u1edfi nh\u00e0 s\u1ea3n xu\u1ea5t ho\u1eb7c c\u01a1 quan th\u1ef1c thi ph\u00e1p lu\u1eadt. Xu\u1ea5t b\u1ea3n ng\u00e0y 3 th\u00e1ng 8 n\u0103m 2026.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u1ed7 h\u1ed5ng Coldcard v\u00e0 T\u00e1c \u0111\u1ed9ng c\u1ee7a N\u00f3 L\u1ed7 h\u1ed5ng Coldcard kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng theo c\u00e1ch m\u00e0 h\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi hi\u1ec3u. Kh\u00f4ng ai \u0111\u00e3 x\u00e2m nh\u1eadp v\u00e0o b\u1ea5t c\u1ee9 \u0111i\u1ec1u g\u00ec, kh\u00f4ng ai \u0111\u00e3 l\u1eeba \u0111\u1ea3o ai, v\u00e0 kh\u00f4ng ai \u0111\u00e3 \u0111\u00e1nh c\u1eafp c\u1ee5m t\u1eeb h\u1ea1&#8230;<\/p>\n","protected":false},"author":3,"featured_media":21397,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42],"tags":[10558,4225,4455,4534,11373],"class_list":["post-21398","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bitcoin","tag-alex-thorn","tag-bitcoin","tag-canada","tag-ftx","tag-galaxy-research"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Coldcard \u0110\u1ea9y Bitcoin Tr\u1edf L\u1ea1i C\u00e1c S\u00e0n Giao D\u1ecbch: Giao D\u1ecbch Ch\u1ed1ng T\u1ef1 Qu\u1ea3n L\u00fd - CryptoZen<\/title>\n<meta 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