{"id":7598,"date":"2021-07-08T23:47:00","date_gmt":"2021-07-08T20:47:00","guid":{"rendered":"https:\/\/alfacash.blog\/?p=7598"},"modified":"2024-02-19T21:51:32","modified_gmt":"2024-02-19T18:51:32","slug":"top-5-plus-grands-crypto-hacks-histoire","status":"publish","type":"post","link":"https:\/\/alfacash.blog\/fr\/2021\/07\/08\/top-5-plus-grands-crypto-hacks-histoire\/","title":{"rendered":"Top 5 : Les plus gros crypto-hacks de l&#039;histoire"},"content":{"rendered":"<p>Quoi qu&#039;il en soit : \u00e0 l&#039;int\u00e9rieur du monde num\u00e9rique, chaque type de service peut parfois \u00eatre pirat\u00e9. Malheureusement, les \u00e9changes de crypto-monnaie de garde et certains services connexes ne font pas exception. Les blockchains sont g\u00e9n\u00e9ralement s\u00fbres, et il est presque impossible de les casser. Cependant, lorsque d&#039;\u00e9normes quantit\u00e9s de crypto-monnaies sont contr\u00f4l\u00e9es par une seule entreprise, les plus gros piratages cryptographiques sont in\u00e9vitables.<\/p>\n\n\n\n<p>Selon la soci\u00e9t\u00e9 de s\u00e9curit\u00e9 blockchain <a href=\"https:\/\/hacked.slowmist.io\/en\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Brume lente<\/a>, <strong>le montant total vol\u00e9 par les pirates sur les plateformes et services de cryptographie d\u00e9passe $17,4 milliards depuis 2012<\/strong>. Et ils n&#039;incluent m\u00eame pas le <a href=\"https:\/\/alfacash.blog\/2021\/06\/02\/what-happened-may-cryptocurrency-world\/\" target=\"_blank\" rel=\"noreferrer noopener\">de nombreux incidents<\/a> \u00e0 l&#039;int\u00e9rieur de la Binance Smart Chain (BSC). Mais en parlant des plus gros, ils sont arriv\u00e9s aux \u00e9changes de crypto-monnaie depuis plusieurs ann\u00e9es.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Comment sont fabriqu\u00e9s les plus gros piratages cryptographiques<\/strong><\/h2>\n\n\n\n<p>La plupart d&#039;entre eux ont \u00e9t\u00e9 possibles soit en raison d&#039;une fuite des cl\u00e9s priv\u00e9es de l&#039;\u00e9change, soit en raison de modifications non autoris\u00e9es dans la base de donn\u00e9es de l&#039;entreprise. <a href=\"https:\/\/medium.com\/lgogroup\/why-institutions-will-not-use-centralized-cryptocurrency-exchanges-dc5ef711eb4a\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">une petite explication<\/a>: une fois que vous leur envoyez vos fonds, ils les m\u00e9langent avec tous les autres dans un seul ou quelques portefeuilles de crypto-monnaie, enti\u00e8rement contr\u00f4l\u00e9s par l&#039;entreprise.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/02\/bank-5881296_1280-1024x682.jpg\" alt=\"coffre-fort-coffres-forts-crypto-staking\" class=\"wp-image-6576\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/02\/bank-5881296_1280-1024x682.jpg 1024w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/02\/bank-5881296_1280-300x200.jpg 300w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/02\/bank-5881296_1280-150x100.jpg 150w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/02\/bank-5881296_1280-18x12.jpg 18w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/02\/bank-5881296_1280-270x180.jpg 270w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/02\/bank-5881296_1280-770x513.jpg 770w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/02\/bank-5881296_1280-762x508.jpg 762w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/02\/bank-5881296_1280-773x515.jpg 773w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/02\/bank-5881296_1280-370x247.jpg 370w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/02\/bank-5881296_1280-554x369.jpg 554w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/02\/bank-5881296_1280-306x204.jpg 306w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/02\/bank-5881296_1280-368x245.jpg 368w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/02\/bank-5881296_1280-260x173.jpg 260w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/02\/bank-5881296_1280-87x58.jpg 87w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/02\/bank-5881296_1280.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<p>Ensuite, le solde que vous pouvez voir sur votre compte est \u00e0 peine une \u00ab reconnaissance de dette \u00bb enregistr\u00e9e dans une \u00e9norme base de donn\u00e9es interne. Ainsi, si quelqu&#039;un parvient \u00e0 casser la s\u00e9curit\u00e9 de cette base de donn\u00e9es (ce qui est bien plus simple que de \u00ab pirater \u00bb un <a href=\"https:\/\/alfacash.blog\/2020\/08\/30\/dummies-what-is-blockchain-how-it-works\/\" target=\"_blank\" rel=\"noreferrer noopener\">blockchain<\/a>), ils peuvent tromper le syst\u00e8me pour enregistrer que leurs comptes ont en fait une somme d&#039;argent qu&#039;ils n&#039;ont pas.<\/p>\n\n\n\n<p><strong>Le ou les pirates retirent les fonds rapidement, et le braquage est termin\u00e9 alors<\/strong>. Probablement, l&#039;\u00e9change de garde le remarquera trop tard. C&#039;est pourquoi il est tr\u00e8s conseill\u00e9 de ne pas laisser les crypto-monnaies trop longtemps dans les \u00e9changes de garde. D&#039;autre part, les utilisateurs peuvent \u00e9galement faire appel \u00e0 des \u00e9changes non d\u00e9positaires (comme <a href=\"https:\/\/www.alfa.cash\/fr\" target=\"_blank\" rel=\"noreferrer noopener\">Alfacash<\/a>), o\u00f9 ils peuvent garder le contr\u00f4le total de leur argent.<\/p>\n\n\n\n<p>Cela dit, v\u00e9rifions les plus gros piratages cryptographiques de l&#039;histoire\u00a0!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Bitgrail<\/strong><\/h2>\n\n\n\n<p>Ce fut une mauvaise journ\u00e9e pour la communaut\u00e9 Nano (XRB). Le 9 f\u00e9vrier 2018, la crypto-\u00e9change italienne Bitgrail a publi\u00e9 un <a href=\"https:\/\/web.archive.org\/web\/20180215053431\/https:\/bitgrail.com\/news\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">mauvaise annonce<\/a> sur sa page Web. En v\u00e9rifiant sa plate-forme interne, ils ont remarqu\u00e9 que quelqu&#039;un, \u00e0 un moment donn\u00e9, <strong>a pu voler 17 millions de XRB, soit l&#039;\u00e9quivalent de plus de $192 millions \u00e0 l&#039;\u00e9poque.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"665\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hacker-2851143_1280-1024x665.jpg\" alt=\"plus gros-crypto-hacks-bitgrail\" class=\"wp-image-5696\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hacker-2851143_1280-1024x665.jpg 1024w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hacker-2851143_1280-300x195.jpg 300w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hacker-2851143_1280-150x97.jpg 150w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hacker-2851143_1280-18x12.jpg 18w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hacker-2851143_1280-270x175.jpg 270w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hacker-2851143_1280-770x500.jpg 770w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hacker-2851143_1280-782x508.jpg 782w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hacker-2851143_1280-793x515.jpg 793w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hacker-2851143_1280-370x240.jpg 370w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hacker-2851143_1280-554x360.jpg 554w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hacker-2851143_1280-306x199.jpg 306w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hacker-2851143_1280-260x169.jpg 260w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hacker-2851143_1280-87x56.jpg 87w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hacker-2851143_1280.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<p>Francisco Firano, le fondateur de Bitgrail, a bl\u00e2m\u00e9 les d\u00e9veloppeurs de Nano pour l&#039;incident, all\u00e9guant des vuln\u00e9rabilit\u00e9s dans la blockchain. Il a \u00e9t\u00e9 d\u00e9menti par le tribunal, les frais juridiques \u00e9tant pay\u00e9s en partie par l&#039;\u00e9quipe Nano. Les enqu\u00eates polici\u00e8res ont \u00e9tabli que l&#039;\u00e9change avait les fonds \u00e0 l&#039;int\u00e9rieur d&#039;un <a href=\"https:\/\/alfacash.blog\/2021\/02\/03\/how-to-choose-first-crypto-wallet-tips-tricks\/\" target=\"_blank\" rel=\"noreferrer noopener\">portefeuille chaud<\/a>, et Firano n&#039;a pas r\u00e9ussi \u00e0 les s\u00e9curiser correctement. <a href=\"https:\/\/cointelegraph.com\/news\/owner-of-hacked-crypto-exchange-bitgrail-sentenced-to-return-funds-to-customers\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Par cons\u00e9quent<\/a>, il \u00e9tait responsable de payer les pertes, et tous ses biens ont \u00e9t\u00e9 saisis.<\/p>\n\n\n\n<p>Malheureusement, cela n&#039;a pas suffi \u00e0 couvrir les pertes. Les victimes sont <a href=\"https:\/\/www.reddit.com\/r\/nanocurrency\/comments\/cbxrqn\/can_i_recover_my_money_from_bitgrail_got_an_email\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">toujours en attente<\/a> pour des remboursements complets. Pendant ce temps, Bitgrail n&#039;existe plus et le prix XRB\/NANO a baiss\u00e9 de plus de 63% depuis lors.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>KuCoin<\/strong><\/h2>\n\n\n\n<p>Celui-ci est le plus r\u00e9cent de la liste. De retour le 25 septembre 2020, la crypto-\u00e9change singapourienne KuCoin <a href=\"https:\/\/www.kucoin.com\/news\/en-kucoin-security-incident-update\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">annonc\u00e9<\/a> un piratage de grande envergure impliquant <a href=\"https:\/\/alfacash.blog\/2020\/08\/20\/how-buy-bitcoin-simple-steps-nice-recipe\/\" target=\"_blank\" rel=\"noreferrer noopener\">Bitcoin<\/a>, jetons ERC-20 et autres actifs. Au d\u00e9but, ils n&#039;ont pas mentionn\u00e9 le montant exact, mais certaines sources ont calcul\u00e9 plus de $150 millions. <strong>Peu de temps apr\u00e8s, le montant total vol\u00e9 a \u00e9t\u00e9 confirm\u00e9 \u00e0 $285 millions.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/money-2180338_1280-1024x682.jpg\" alt=\"tirelire-pi\u00e8ces-cryptos\" class=\"wp-image-6500\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/money-2180338_1280-1024x682.jpg 1024w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/money-2180338_1280-300x200.jpg 300w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/money-2180338_1280-150x100.jpg 150w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/money-2180338_1280-18x12.jpg 18w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/money-2180338_1280-270x180.jpg 270w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/money-2180338_1280-770x513.jpg 770w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/money-2180338_1280-762x508.jpg 762w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/money-2180338_1280-773x515.jpg 773w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/money-2180338_1280-370x247.jpg 370w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/money-2180338_1280-554x369.jpg 554w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/money-2180338_1280-306x204.jpg 306w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/money-2180338_1280-368x245.jpg 368w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/money-2180338_1280-260x173.jpg 260w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/money-2180338_1280-87x58.jpg 87w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/money-2180338_1280.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<p>Un tiers malveillant a attaqu\u00e9 leurs hot wallets, mais l&#039;\u00e9change a assum\u00e9 la responsabilit\u00e9 et a promis de rembourser les utilisateurs si n\u00e9cessaire. Ils ont travaill\u00e9 rapidement avec d&#039;autres \u00e9changes cryptographiques, la communaut\u00e9 et les autorit\u00e9s pour suivre et r\u00e9cup\u00e9rer les fonds. \u00c9tonnamment, cette histoire a une fin heureuse. De tous ceux mentionn\u00e9s dans cette liste, KuCoin \u00e9tait le seul \u00e0 r\u00e9cup\u00e9rer la plupart des fonds de <a href=\"https:\/\/alfacash.blog\/2020\/10\/04\/malware-can-steal-cryptos-how-avoid-it\/\" target=\"_blank\" rel=\"noreferrer noopener\">les pirates<\/a>.<\/p>\n\n\n\n<p>Selon <a href=\"https:\/\/medium.com\/kucoinexchange\/a-letter-from-the-kucoin-ceo-2020-2021-and-beyond-b9a509f8aa0f\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">une lettre<\/a> par Johnny Lyu, PDG de KuCoin, ils ont r\u00e9cup\u00e9r\u00e9 avec succ\u00e8s 78% des fonds vol\u00e9s en travaillant avec d&#039;autres \u00e9changes et partenaires. Ils ont suivi les fonds via la blockchain, et d&#039;autres \u00e9changes ont bloqu\u00e9 les transactions effectu\u00e9es par les pirates et ont saisi les jetons. Un autre 16% \u00e9tait couvert par une assurance, et le 6% restant a \u00e9t\u00e9 r\u00e9cup\u00e9r\u00e9 par les forces de l&#039;ordre et les institutions de s\u00e9curit\u00e9. KuCoin continue de fonctionner normalement maintenant. \u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Ch\u00e8que-monnaie<\/strong><\/h2>\n\n\n\n<p>Probablement, <a href=\"https:\/\/cryptonews.com\/news\/coincheck-hacked-more-than-500-million-xem-stolen-1093.htm\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">cette attaque<\/a> pourrait \u00eatre consid\u00e9r\u00e9 par certains comme le plus grand hack crypto de l&#039;histoire. Cependant, en raison du changement de valeur de la crypto-monnaie impliqu\u00e9e et des cons\u00e9quences, nous avons r\u00e9serv\u00e9 cette place pour d&#039;autres ici. Cela ne veut pas dire que ce n&#039;\u00e9tait pas grand, cependant. C&#039;\u00e9tait \u00e9norme : <strong>plus de $530 millions ont \u00e9t\u00e9 vol\u00e9s dans NEM (XEM) pendant la nuit.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"797\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bug-4297771_1280-1024x797.jpg\" alt=\"\" class=\"wp-image-6090\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bug-4297771_1280-1024x797.jpg 1024w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bug-4297771_1280-300x233.jpg 300w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bug-4297771_1280-150x117.jpg 150w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bug-4297771_1280-15x12.jpg 15w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bug-4297771_1280-231x180.jpg 231w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bug-4297771_1280-662x515.jpg 662w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bug-4297771_1280-653x508.jpg 653w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bug-4297771_1280-370x288.jpg 370w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bug-4297771_1280-554x431.jpg 554w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bug-4297771_1280-306x238.jpg 306w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bug-4297771_1280-315x245.jpg 315w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bug-4297771_1280-257x200.jpg 257w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bug-4297771_1280-87x67.jpg 87w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/11\/bug-4297771_1280.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<p>Ils ont fait la m\u00eame erreur que Bitgrail : garder les fonds dans des portefeuilles chauds, au lieu de portefeuilles froids (hors d&#039;Internet). Contrairement au premier cas, cependant, <a href=\"https:\/\/alfacash.blog\/2021\/02\/10\/top-5-most-crypto-friendly-countries-taxes\/\" target=\"_blank\" rel=\"noreferrer noopener\">les Japonais<\/a> Coincheck a assum\u00e9 l&#039;enti\u00e8re responsabilit\u00e9 de la violation. Ils ont suspendu toutes ses activit\u00e9s depuis l&#039;\u00e9v\u00e9nement, en janvier 2018. En mars, ils ont repris leurs activit\u00e9s et ont commenc\u00e9 le <a href=\"https:\/\/corporate.coincheck.com\/2018\/03\/12\/47.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">plan de remboursement<\/a> pour les victimes. Le montant total vol\u00e9 \u00e9tait de 526 millions de XEM. Depuis lors, le prix du jeton a diminu\u00e9 de plus de 90%.<\/p>\n\n\n\n<p>L&#039;attaque Coincheck a marqu\u00e9 un tournant pour les crypto-entreprises japonaises. Apr\u00e8s l&#039;\u00e9v\u00e9nement, la r\u00e9glementation autour des crypto-monnaies s&#039;est resserr\u00e9e dans ce pays. Pour d&#039;autres raisons, <a href=\"https:\/\/alfacash.blog\/2021\/03\/29\/discover-monero-how-use-it-full-privacy\/\" target=\"_blank\" rel=\"noreferrer noopener\">crypto-monnaies priv\u00e9es<\/a> ont \u00e9t\u00e9 interdits et les exigences op\u00e9rationnelles des fournisseurs de services ont augment\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Bitfinex<\/strong><\/h2>\n\n\n\n<p>Le 2 ao\u00fbt 2016, \u00e9tait le jour o\u00f9 pr\u00e8s de 120 000 BTC ont \u00e9t\u00e9 vol\u00e9s dans cette <a href=\"https:\/\/alfacash.blog\/2021\/03\/11\/top-countries-most-crypto-users-laws\/\" target=\"_blank\" rel=\"noreferrer noopener\">Bas\u00e9 \u00e0 Hong Kong<\/a> \u00e9change de crypto en raison d&#039;une br\u00e8che sur ses syst\u00e8mes de s\u00e9curit\u00e9. Apr\u00e8s l&#039;\u00e9v\u00e9nement, nombreux sont ceux qui pensaient que l&#039;entreprise \u00e9tait finie. \u00c0 ce moment-l\u00e0, le montant s&#039;\u00e9levait \u00e0 plus de $75 millions, mais il n&#039;a \u00e9t\u00e9 d\u00e9plac\u00e9 que quelques fois au cours de toutes ces ann\u00e9es. <strong>Les pirates ont encore environ 118 000 BTC dans leurs portefeuilles, qui valent d\u00e9sormais plus de $3,7 milliards, rien de moins<\/strong>. L&#039;un des plus gros crypto-hacks, en effet.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-1024x682.jpg\" alt=\"Bitcoin-coins-pochette-portefeuille\" class=\"wp-image-5779\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-1024x682.jpg 1024w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-300x200.jpg 300w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-150x100.jpg 150w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-18x12.jpg 18w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-270x180.jpg 270w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-770x513.jpg 770w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-762x508.jpg 762w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-773x515.jpg 773w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-370x247.jpg 370w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-554x369.jpg 554w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-306x204.jpg 306w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-368x245.jpg 368w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-260x173.jpg 260w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-87x58.jpg 87w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<p>Mais en 2016, Bitfinex a cess\u00e9 toutes ses op\u00e9rations pendant plusieurs jours et a socialis\u00e9 les pertes (ce qui a laiss\u00e9 \u00e0 tous ses utilisateurs 36% de moins dans leurs soldes). Ils ont \u00e9galement cr\u00e9\u00e9 le <a href=\"https:\/\/www.bitfinex.com\/posts\/184\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Jetons BFX<\/a>, qui resteraient dans chaque portefeuille jusqu&#039;\u00e0 ce que l&#039;\u00e9change ait conclu le paiement de la dette, ou jusqu&#039;\u00e0 ce que le client d\u00e9cide de les \u00e9changer contre des actions de la soci\u00e9t\u00e9.<\/p>\n\n\n\n<p>Les premiers remboursements aux clients ont commenc\u00e9 en septembre 2016. Apr\u00e8s huit mois, les pertes ont \u00e9t\u00e9 couvertes, bien qu&#039;un montant infime du total vol\u00e9 <a href=\"https:\/\/medium.com\/bitfinex\/bitcoins-returned-to-bitfinex-by-u-s-government-51fe84e8bb12\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">a \u00e9t\u00e9 r\u00e9cup\u00e9r\u00e9<\/a>. Les pirates semblent au moins avoir des probl\u00e8mes pour les blanchir et les \u00e9changer.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Le plus gros crypto-piratage de tous les temps : Mt. Gox<\/strong><\/h2>\n\n\n\n<p>Cet \u00e9change japonais a connu une ann\u00e9e 2013 pleine d&#039;\u00e9motions. C&#039;est devenu le monde <a href=\"https:\/\/alfacash.blog\/2021\/06\/30\/5-ways-make-private-transactions-bitcoin\/\" target=\"_blank\" rel=\"noreferrer noopener\">leader Bitcoin<\/a> \u00e9change car il traitait plus de 70% des transactions totales en avril. Et pr\u00e9cis\u00e9ment parce qu&#039;il n&#039;\u00e9tait pas trop capable de g\u00e9rer ce gros volume, le m\u00eame mois a interrompu les op\u00e9rations pendant plusieurs jours apr\u00e8s une <a href=\"https:\/\/alfacash.blog\/2020\/09\/20\/price-bitcoin-5-times-people-thought-was-dead\/\" target=\"_blank\" rel=\"noreferrer noopener\">Crash BTC<\/a> de -52% en 6 heures. Et ce n&#039;est que le d\u00e9but de la fin.<\/p>\n\n\n\n<p>Le 7 f\u00e9vrier 2014, <a href=\"https:\/\/www.wired.com\/2014\/03\/bitcoin-exchange\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Mt. Gox<\/a> arr\u00eat\u00e9 tous les retraits de bitcoins et a commenc\u00e9 \u00e0 faire des excuses syst\u00e9matiques pour cela. Son PDG, Mark Karpel\u00e8s, a d\u00e9missionn\u00e9 du conseil d&#039;administration de la Fondation Bitcoin et supprim\u00e9 tous ses tweets. Le reste des op\u00e9rations commerciales a \u00e9t\u00e9 suspendu et, finalement, le site s&#039;est d\u00e9connect\u00e9 \u00e0 la fin du mois.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"609\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/04\/no-access-5043758_1280-1024x609.jpg\" alt=\"Turquie-interdit-crypto-Dogecoin\" class=\"wp-image-7172\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/04\/no-access-5043758_1280-1024x609.jpg 1024w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/04\/no-access-5043758_1280-scaled-150x89.jpg 150w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/04\/no-access-5043758_1280-scaled-260x155.jpg 260w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/04\/no-access-5043758_1280-scaled-87x52.jpg 87w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/04\/no-access-5043758_1280-300x178.jpg 300w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/04\/no-access-5043758_1280-scaled-18x12.jpg 18w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/04\/no-access-5043758_1280-scaled.jpg 270w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/04\/no-access-5043758_1280-770x458.jpg 770w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/04\/no-access-5043758_1280-854x508.jpg 854w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/04\/no-access-5043758_1280-866x515.jpg 866w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/04\/no-access-5043758_1280-370x220.jpg 370w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/04\/no-access-5043758_1280-554x329.jpg 554w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/04\/no-access-5043758_1280-306x182.jpg 306w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<p>Les utilisateurs concern\u00e9s d\u00e9couvriraient bient\u00f4t la terrible v\u00e9rit\u00e9. La soci\u00e9t\u00e9 \u00e9tait insolvable \u00e0 la suite de <strong>un piratage qui a vol\u00e9 744,408 BTC (environ $473 millions \u00e0 l&#039;\u00e9poque et +$23,8 milliards aujourd&#039;hui).<\/strong> le mont. Gox a d\u00e9pos\u00e9 son bilan \u00e0 Tokyo fin f\u00e9vrier, et c&#039;est l\u00e0 qu&#039;a commenc\u00e9 l&#039;odyss\u00e9e de ses anciens clients pour r\u00e9cup\u00e9rer leurs fonds (et \u00e7a continue <a href=\"https:\/\/www.bloomberg.com\/news\/articles\/2021-03-19\/fortress-said-to-offer-earlier-payout-on-mt-gox-creditor-claims\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">\u00e0 ce jour<\/a>).<\/p>\n\n\n\n<p>Le mont. L&#039;attaque de Gox a \u00e9t\u00e9 un tournant pour le Bitcoin et le <a href=\"https:\/\/alfacash.blog\/2021\/07\/03\/what-happened-june-cryptocurrency-world\/\" target=\"_blank\" rel=\"noreferrer noopener\">monde de la crypto-monnaie<\/a>. D\u00e8s lors, les \u00e9changes cryptographiques ont commenc\u00e9 \u00e0 am\u00e9liorer leur s\u00e9curit\u00e9, leurs r\u00e9serves et leurs r\u00e9glementations. Nous avons de meilleures options maintenant, ainsi que des \u00e9changes sans d\u00e9tention.<br><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p class=\"has-text-align-center\"><em>Voulez-vous \u00e9changer Bitcoin et d&#039;autres jetons? Tu peux le faire<\/em>\u00a0<em>sans encombre\u00a0<a href=\"https:\/\/www.alfa.cash\/buy\/bitcoin\" target=\"_blank\" rel=\"noreferrer noopener\">sur Alfacash<\/a>! Et n&#039;oubliez pas que nous parlons de cela et de beaucoup d&#039;autres choses sur nos m\u00e9dias sociaux.<\/em><\/p>\n\n\n\n<p class=\"has-text-align-center\"><a href=\"https:\/\/twitter.com\/alfacash_crypto\" target=\"_blank\" rel=\"noreferrer noopener\">Twitter<\/a>&nbsp;*&nbsp;<a href=\"https:\/\/t.me\/AlfacashCommunity\" target=\"_blank\" rel=\"noreferrer noopener\">T\u00e9l\u00e9gramme<\/a>&nbsp;*&nbsp;<a href=\"https:\/\/www.facebook.com\/alfacashstore\" target=\"_blank\" rel=\"noreferrer noopener\">Facebook<\/a>&nbsp;*&nbsp;<a href=\"https:\/\/www.instagram.com\/alfacashstore\" target=\"_blank\" rel=\"noreferrer noopener\">Instagram<\/a> * <a href=\"https:\/\/www.youtube.com\/channel\/UCOl4fdRHj8AseQ5b6z9udaw\" target=\"_blank\" rel=\"noreferrer noopener\">Youtube<\/a>&nbsp;*&nbsp;<a href=\"https:\/\/vk.com\/alfacashcrypto\" target=\"_blank\" rel=\"noreferrer noopener\">Vkontakte<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Lorsque de grandes quantit\u00e9s de cryptos sont contr\u00f4l\u00e9es par une seule entreprise, les plus gros piratages cryptographiques sont in\u00e9vitables. V\u00e9rifions ces \u00e9normes braquages\u00a0!<\/p>","protected":false},"author":5,"featured_media":7604,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[51],"tags":[61,135,59,186,111,298,18],"class_list":{"0":"post-7598","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-crypto-culture","8":"tag-cryptocurrencies","9":"tag-cybersecurity","10":"tag-exchanges","11":"tag-hack","12":"tag-mt-gox","13":"tag-robbery","14":"tag-top"},"featured_image_src":"https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/07\/hack-scaled.jpg","author_info":{"display_name":"Isabel P\u00e9rez","author_link":"https:\/\/alfacash.blog\/fr\/author\/isabel\/"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.4 (Yoast SEO v25.4) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Top 5: Biggest crypto-hacks in history - alfa.cash blog<\/title>\n<meta name=\"description\" content=\"When great amounts of cryptos are controlled by only one company, the biggest crypto-hacks are bound to happen. 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