{"id":55021,"date":"2026-10-30T14:48:38","date_gmt":"2026-10-30T14:48:38","guid":{"rendered":"https:\/\/volity.io\/blog\/binance-breach-crypto-selloff-2\/"},"modified":"2026-10-30T17:14:45","modified_gmt":"2026-10-30T17:14:45","slug":"binance-breach-crypto-selloff","status":"publish","type":"post","link":"https:\/\/volity.io\/fr\/actualites\/binance-breach-crypto-selloff\/","title":{"rendered":"La faille de Binance plonge le march\u00e9 crypto dans $1,57 milliard de liquidations"},"content":{"rendered":"<h2>La matin\u00e9e la plus rude de la crypto : la faille de s\u00e9curit\u00e9 de Binance secoue les march\u00e9s et met \u00e0 l&rsquo;\u00e9preuve la confiance des investisseurs<\/h2>\n\n<p><b>30 octobre 2026<\/b><\/p>\n\n<p>Les traders crypto ont entam\u00e9 la journ\u00e9e de jeudi avec des prix en baisse et une confiance qui s&rsquo;effrite. Le bitcoin a bri\u00e8vement touch\u00e9 $76 400, tandis que l&rsquo;ether s&rsquo;approchait de $2 178. Le jeton BNB de Binance a lui aussi recul\u00e9 apr\u00e8s que la plateforme a r\u00e9v\u00e9l\u00e9 une importante faille de s\u00e9curit\u00e9.<\/p>\n\n<p>Selon Binance, environ $6,3 milliards d&rsquo;actifs num\u00e9riques pourraient avoir \u00e9t\u00e9 touch\u00e9s. Ce chiffre a imm\u00e9diatement transform\u00e9 un incident de s\u00e9curit\u00e9 en test de liquidit\u00e9 \u00e0 l&rsquo;\u00e9chelle de tout le march\u00e9. Les traders n&rsquo;ont pas attendu un rapport d&rsquo;enqu\u00eate technique complet.<\/p>\n\n<p>Les liquidations sur les contrats \u00e0 terme ont atteint environ $1,57 milliard pendant la vague de ventes. Les positions longues ont support\u00e9 l&rsquo;essentiel des pertes, comme souvent lors de brusques mouvements d&rsquo;aversion au risque. Les contrats sur le bitcoin et l&rsquo;ether ont repr\u00e9sent\u00e9 plus de la moiti\u00e9 des cl\u00f4tures forc\u00e9es.<\/p>\n\n<p>Les prix se sont ensuite stabilis\u00e9s, mais l&rsquo;\u00e9pisode a mis au jour des fragilit\u00e9s bien connues. La crypto reste tr\u00e8s interconnect\u00e9e par le biais des plateformes d&rsquo;\u00e9change, des stablecoins, des produits d\u00e9riv\u00e9s et des pools de pr\u00eat. Une d\u00e9faillance sur une grande plateforme peut se propager d&rsquo;un march\u00e9 \u00e0 l&rsquo;autre en quelques minutes.<\/p>\n\n<h3>La faille d\u00e9passe le cadre de Binance<\/h3>\n\n<p>Binance a indiqu\u00e9 que les retraits non autoris\u00e9s provenaient de portefeuilles servant \u00e0 traiter les transactions des clients. Son enqu\u00eate pr\u00e9liminaire a identifi\u00e9 l&rsquo;ordinateur portable compromis d&rsquo;un ing\u00e9nieur DevOps comme l&rsquo;un des points d&rsquo;entr\u00e9e. Des mises \u00e0 jour ult\u00e9rieures ont laiss\u00e9 entendre que les attaquants auraient pu passer par d&rsquo;autres syst\u00e8mes.<\/p>\n\n<p>La plateforme a assur\u00e9 que les cl\u00e9s priv\u00e9es des portefeuilles clients n&rsquo;avaient pas \u00e9t\u00e9 expos\u00e9es. Cette assurance n&rsquo;a toutefois apport\u00e9 qu&rsquo;un r\u00e9confort limit\u00e9 tant que les retraits restaient suspendus. Les clients se soucient peu des distinctions techniques quand leurs soldes sont bloqu\u00e9s.<\/p>\n\n<p>Selon des analystes blockchain, le vol principal s&rsquo;est d\u00e9roul\u00e9 en 20 minutes environ. Les actifs d\u00e9rob\u00e9s comprendraient du bitcoin, de l&rsquo;ether, de l&rsquo;USDT et de l&rsquo;USDC. Ce m\u00e9lange a donn\u00e9 quelques outils aux enqu\u00eateurs, mais il a aussi ouvert plusieurs voies de fuite.<\/p>\n\n<p>Tether et Circle ont gel\u00e9 des sommes importantes li\u00e9es \u00e0 l&rsquo;attaque. Binance a pr\u00e9cis\u00e9 qu&rsquo;environ $3 milliards d&rsquo;actifs concern\u00e9s avaient \u00e9t\u00e9 gel\u00e9s on-chain. Des fonds gel\u00e9s ne sont cependant pas automatiquement des fonds r\u00e9cup\u00e9r\u00e9s.<\/p>\n\n<p>Une partie des actifs aurait transit\u00e9 par des march\u00e9s de pr\u00eat d\u00e9centralis\u00e9s, o\u00f9 ils ont servi de garantie. Les attaquants peuvent emprunter en contrepartie de ces garanties avant que les \u00e9metteurs ou les plateformes n&rsquo;interviennent. Chaque transfert ajoute de la complexit\u00e9, des co\u00fbts et des d\u00e9lais \u00e0 toute tentative de r\u00e9cup\u00e9ration.<\/p>\n\n<p>Binance s&rsquo;est engag\u00e9 \u00e0 couvrir les pertes des clients gr\u00e2ce aux fonds de l&rsquo;entreprise et \u00e0 sa r\u00e9serve d&rsquo;urgence. La plateforme pr\u00e9voyait une reprise des retraits dans un d\u00e9lai d&rsquo;environ deux jours. Ce calendrier compte d\u00e9sormais autant que l&rsquo;estimation du montant vol\u00e9.<\/p>\n\n<h3>L&rsquo;effet de levier a aggrav\u00e9 une mauvaise matin\u00e9e<\/h3>\n\n<p>Le bitcoin a recul\u00e9 d&rsquo;environ 3 %, \u00e0 son plus bas niveau depuis six semaines. L&rsquo;ether a perdu pr\u00e8s de 4 %, tandis que l&rsquo;ensemble du march\u00e9 crypto a c\u00e9d\u00e9 environ 3,6 %. La capitalisation totale des actifs num\u00e9riques a gliss\u00e9 vers $2 680 milliards.<\/p>\n\n<p>Le volume des \u00e9changes a augment\u00e9 tandis que l&rsquo;int\u00e9r\u00eat ouvert reculait sur les principales plateformes de d\u00e9riv\u00e9s. Cette combinaison signale g\u00e9n\u00e9ralement des sorties forc\u00e9es plut\u00f4t que des ajustements de portefeuille r\u00e9fl\u00e9chis. Autrement dit, beaucoup de traders n&rsquo;ont pas choisi de vendre.<\/p>\n\n<p>Le taux de financement du bitcoin est rest\u00e9 positif malgr\u00e9 la baisse. Les traders acheteurs continuaient de payer les vendeurs \u00e0 d\u00e9couvert pour conserver des positions perp\u00e9tuelles haussi\u00e8res. Ce d\u00e9s\u00e9quilibre laisse le march\u00e9 expos\u00e9 si les prix fl\u00e9chissent \u00e0 nouveau.<\/p>\n\n<p>Binance a fourni l&rsquo;\u00e9tincelle imm\u00e9diate, mais les march\u00e9s au sens large \u00e9taient d\u00e9j\u00e0 fragiles. Les actifs risqu\u00e9s avaient faibli lors de la s\u00e9ance pr\u00e9c\u00e9dente. L&rsquo;effet de levier propre \u00e0 la crypto a ensuite transform\u00e9 un repli modeste en une purge plus brutale.<\/p>\n\n<ul>\n  <li><b>Plus bas du bitcoin :<\/b> Environ $76 400 lors de la vague de ventes initiale.<\/li>\n  <li><b>Actifs touch\u00e9s d\u00e9clar\u00e9s :<\/b> Environ $6,3 milliards.<\/li>\n  <li><b>Liquidations crypto :<\/b> Environ $1,57 milliard, surtout des positions longues.<\/li>\n  <li><b>Actifs gel\u00e9s :<\/b> Binance a estim\u00e9 le montant \u00e0 environ $3 milliards on-chain.<\/li>\n  <li><b>Capitalisation totale du march\u00e9 crypto :<\/b> Pr\u00e8s de $2 680 milliards apr\u00e8s la baisse.<\/li>\n<\/ul>\n\n<h3>Coinbase d\u00e9gage des b\u00e9n\u00e9fices, mais le trading ralentit<\/h3>\n\n<p>Coinbase a envoy\u00e9 un signal diff\u00e9rent au sein du secteur des plateformes d&rsquo;\u00e9change. La plateforme am\u00e9ricaine a publi\u00e9 un b\u00e9n\u00e9fice net de $719 millions au troisi\u00e8me trimestre. Ce chiffre se compare \u00e0 $432,6 millions sur la m\u00eame p\u00e9riode l&rsquo;an dernier.<\/p>\n\n<p>Le b\u00e9n\u00e9fice dilu\u00e9 a atteint $2,51 par action. Le chiffre d&rsquo;affaires a en revanche chut\u00e9 de 35 % sur un an, \u00e0 $1,22 milliard. La baisse de l&rsquo;activit\u00e9 de trading montre \u00e0 quelle vitesse les revenus d&rsquo;une plateforme d&rsquo;\u00e9change peuvent se contracter quand la sp\u00e9culation retombe.<\/p>\n\n<p>La direction a mis en avant des activit\u00e9s qui vont au-del\u00e0 du trading crypto au comptant, notamment les march\u00e9s de pr\u00e9diction. L&rsquo;activit\u00e9 dans ce domaine aurait d\u00e9pass\u00e9 $200 millions. Ces produits peuvent diversifier les revenus, mais ils attirent une attention r\u00e9glementaire plus soutenue.<\/p>\n\n<p>Le directeur g\u00e9n\u00e9ral Brian Armstrong pr\u00e9voit de vendre jusqu&rsquo;\u00e0 8,17 millions d&rsquo;actions Coinbase dans le cadre d&rsquo;un plan de n\u00e9gociation. Les ventes programm\u00e9es refl\u00e8tent souvent une diversification ou des accords de r\u00e9mun\u00e9ration. Les investisseurs ont pourtant tendance \u00e0 juger plus s\u00e9v\u00e8rement les transactions d&rsquo;initi\u00e9s en p\u00e9riode de tension sur les march\u00e9s.<\/p>\n\n<h3>Les acheteurs d&rsquo;ETF restent pr\u00e9sents<\/h3>\n\n<p>Les ETF bitcoin au comptant cot\u00e9s aux \u00c9tats-Unis ont encore enregistr\u00e9 des entr\u00e9es nettes d&rsquo;environ $17,2 millions. Les entr\u00e9es nettes cumul\u00e9es s&rsquo;\u00e9tablissaient \u00e0 pr\u00e8s de $57,624 milliards. Le chiffre quotidien paraissait modeste \u00e0 c\u00f4t\u00e9 des flux massifs observ\u00e9s plus t\u00f4t dans le cycle.<\/p>\n\n<p>Ce contraste explique en grande partie la s\u00e9ance irr\u00e9guli\u00e8re de jeudi. Les investisseurs de long terme ont continu\u00e9 d&rsquo;utiliser des fonds r\u00e9glement\u00e9s pour s&rsquo;exposer davantage au bitcoin. Dans le m\u00eame temps, les traders de court terme r\u00e9duisaient leur risque via les plateformes d&rsquo;\u00e9change et les contrats \u00e0 terme perp\u00e9tuels.<\/p>\n\n<p>La demande d&rsquo;ETF peut soutenir les prix dans la dur\u00e9e, mais elle arr\u00eate rarement une cascade de liquidations sur-le-champ. Les vendeurs \u00e0 effet de levier agissent en quelques secondes. Les flux vers les fonds arrivent par un processus plus lent et plus r\u00e9fl\u00e9chi.<\/p>\n\n<h3>La s\u00e9curit\u00e9 devient le prochain th\u00e8me du march\u00e9<\/h3>\n\n<p>L&rsquo;incident chez Binance va renforcer l&rsquo;examen des contr\u00f4les des plateformes et de leurs syst\u00e8mes d&rsquo;acc\u00e8s internes. Les investisseurs vont se demander si les plateformes peuvent isoler des op\u00e9rations compromises sans bloquer les fonds des clients. Cette question fait d\u00e9sormais partie de la valorisation des cryptos.<\/p>\n\n<p>D&rsquo;autres alertes ont ajout\u00e9 au malaise. Trezor a signal\u00e9 un possible implant mat\u00e9riel dans un portefeuille CryptoBilis. Des utilisateurs de Polymarket ont \u00e9galement fait \u00e9tat de pertes apr\u00e8s la compromission d&rsquo;un prestataire de site web.<\/p>\n\n<p>Ces \u00e9v\u00e9nements r\u00e9v\u00e8lent une v\u00e9rit\u00e9 g\u00eanante sur la finance d\u00e9centralis\u00e9e. Les contrats intelligents tournent peut-\u00eatre sur des blockchains publiques, mais les utilisateurs d\u00e9pendent toujours de sites web, de portefeuilles et de prestataires de services. Le code d\u00e9centralis\u00e9 n&rsquo;est qu&rsquo;un maillon de la cha\u00eene.<\/p>\n\n<p>Les r\u00e9gulateurs suivent la situation de pr\u00e8s. Les autorit\u00e9s am\u00e9ricaines examinent d&rsquo;\u00e9ventuels d\u00e9lits d&rsquo;initi\u00e9s sur les march\u00e9s de pr\u00e9diction. La Cor\u00e9e du Sud a \u00e9galement s\u00e9vi contre deux soci\u00e9t\u00e9s crypto, ce qui porte son d\u00e9compte \u00e0 47 op\u00e9rateurs pr\u00e9sum\u00e9s ill\u00e9gaux.<\/p>\n\n<h3>Ce que les traders doivent surveiller<\/h3>\n\n<ul>\n  <li><b>Retraits chez Binance :<\/b> Une reprise sans accroc apaiserait les craintes d&rsquo;une crise de liquidit\u00e9 plus large.<\/li>\n  <li><b>Avanc\u00e9e de la r\u00e9cup\u00e9ration :<\/b> Surveiller si les stablecoins gel\u00e9s le restent ou parviennent \u00e0 des portefeuilles v\u00e9rifi\u00e9s.<\/li>\n  <li><b>Taux de financement :<\/b> Un financement durablement positif pourrait provoquer une nouvelle vague de liquidations de positions longues.<\/li>\n  <li><b>Int\u00e9r\u00eat ouvert :<\/b> Une nouvelle baisse montrerait que l&rsquo;effet de levier reste sous pression.<\/li>\n  <li><b>Flux des ETF :<\/b> Des entr\u00e9es soutenues pourraient stabiliser le sentiment, tandis que des sorties renforceraient le signal d&rsquo;aversion au risque.<\/li>\n<\/ul>\n\n<p>La crypto a d\u00e9j\u00e0 surv\u00e9cu \u00e0 des piratages, mais sa plomberie financi\u00e8re brasse d\u00e9sormais bien plus d&rsquo;argent. Plateformes d&rsquo;\u00e9change, ETF, stablecoins et protocoles de pr\u00eat font transiter les capitaux dans le m\u00eame cycle de march\u00e9. Cette structure cr\u00e9e de la vitesse pendant les phases de hausse et de la contagion pendant les chocs.<\/p>\n\n<p>La le\u00e7on de jeudi est moins myst\u00e9rieuse que la technologie. Un piratage peut d\u00e9clencher la panique, mais l&rsquo;effet de levier et la confiance en d\u00e9terminent l&rsquo;ampleur. Binance doit maintenant montrer que ses syst\u00e8mes fonctionnent \u00e0 nouveau, et pas seulement l&rsquo;affirmer.<\/p>\n\n\n<h2 class=\"wp-block-heading volity-related-coverage\">Articles connexes sur Volity<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/volity.io\/fr\/crypto\/how-to-avoid-crypto-scams\/\">Comment \u00e9viter les arnaques crypto : liste de s\u00e9curit\u00e9 pour d\u00e9butants<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/trading-platforms-fr\/how-to-choose-a-trading-platform\/\">Comment choisir une plateforme de trading : une liste de v\u00e9rification en 10 points<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/trader\/demo-vs-live-trading-account\/\">D\u00e9mo vs compte de trading r\u00e9el : une liste de v\u00e9rification en 7 \u00e9tapes avant de passer en direct<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/trader\/position-sizing-risk-per-trade\/\">Comment dimensionner un trade : taille de position et risque par trade pour d\u00e9butants<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/trader\/risk-reward-ratio-explained\/\">Ratio risque-rendement expliqu\u00e9 : comment le d\u00e9finir et pourquoi il compte<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/actions\/etf-vs-index-fund\/\">ETF vs fonds indiciel : la diff\u00e9rence et lequel choisir<\/a><\/li>\n<\/ul>\n\n\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"NewsArticle\",\"headline\":\"La faille de Binance plonge le march\u00e9 crypto dans $1,57 milliard de liquidations\",\"datePublished\":\"2026-10-30T14:48:38+00:00\",\"dateModified\":\"2026-10-30T14:48:38+00:00\",\"author\":{\"@type\":\"Person\",\"name\":\"Alexander Bennett\",\"url\":\"https:\/\/volity.io\/\"},\"publisher\":{\"@type\":\"Organization\",\"name\":\"Volity\",\"url\":\"https:\/\/volity.io\/\",\"logo\":{\"@type\":\"ImageObject\",\"url\":\"https:\/\/volity.io\/wp-content\/uploads\/2026\/03\/logo.webp\",\"width\":512,\"height\":512}},\"image\":\"https:\/\/volity.io\/wp-content\/uploads\/2026\/10\/BinanceBreachSelloff.webp\",\"mainEntityOfPage\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/volity.io\/fr\/actualites\/binance-breach-crypto-selloff\/\"},\"articleSection\":\"News\",\"inLanguage\":\"fr\"}<\/script>\n","protected":false},"excerpt":{"rendered":"<p>La matin\u00e9e la plus rude de la crypto : la faille de s\u00e9curit\u00e9 de Binance secoue les march\u00e9s et met \u00e0 l&rsquo;\u00e9preuve [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":55008,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"custom_schema":"","footnotes":""},"categories":[223],"tags":[],"class_list":["post-55021","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.3 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>La faille de Binance plonge le march\u00e9 crypto dans $1,57 milliard de liquidations | Volity<\/title>\n<meta name=\"description\" content=\"Binance \u00e9voque environ $6,3 milliards d&#039;actifs touch\u00e9s, les liquidations atteignent $1,57 milliard et le Bitcoin a bri\u00e8vement touch\u00e9 $76 400.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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