{"id":20716,"date":"2025-09-25T14:00:00","date_gmt":"2025-09-25T14:00:00","guid":{"rendered":"https:\/\/99bitcoins.com\/fr\/?p=20716"},"modified":"2025-09-25T13:27:08","modified_gmt":"2025-09-25T13:27:08","slug":"circle-usdc-transactions-reversibles","status":"publish","type":"post","link":"https:\/\/99bitcoins.com\/fr\/actu\/circle-usdc-transactions-reversibles\/","title":{"rendered":"Coup de tonnerre : Circle teste la r\u00e9versibilit\u00e9 USDC contre fraudes et hacks"},"content":{"rendered":"<p>Circle examine des m\u00e9canismes de <strong>r\u00e9versibilit\u00e9<\/strong> qui permettraient de r\u00e9cup\u00e9rer des fonds en cas de fraude ou de hack, tout en pr\u00e9servant la finalit\u00e9 du r\u00e8glement. En effet, le message devient clair : l&rsquo;immuabilit\u00e9 reste un pilier technique, mais l&rsquo;absence totale de recours ne refl\u00e8te pas la mani\u00e8re dont fonctionne la finance \u00e0 grande \u00e9chelle.<\/p>\n<p>Par cons\u00e9quent, l&rsquo;enjeu devient double pour <strong>USDC<\/strong> \u00e0 l&rsquo;heure o\u00f9 Circle pousse une infrastructure plus institutionnelle et o\u00f9 les failles de s\u00e9curit\u00e9 rappellent la fragilit\u00e9 op\u00e9rationnelle d&rsquo;un \u00e9cosyst\u00e8me encore jeune.<\/p>\n<h2>Finalit\u00e9 ou filet de s\u00e9curit\u00e9 : le nouveau dilemme stablecoin<\/h2>\n<p>C&rsquo;est au cours d&rsquo;un <a class=\"general-link\" href=\"https:\/\/www.ft.com\/content\/5b00127e-1f26-4b36-9b19-d20b38392e8c\" target=\"_blank\" rel=\"noopener nofollow\">entretien au FT<\/a> que Heath Tarbert, pr\u00e9sident de Circle, a confi\u00e9 l&rsquo;information. L&rsquo;immuabilit\u00e9 a longtemps repr\u00e9sent\u00e9 un absolu pour l&rsquo;\u00e9cosyst\u00e8me crypto. Dans les faits, elle pose un probl\u00e8me de confiance pour l&rsquo;utilisateur et pour l&rsquo;entreprise qui doit assumer des <strong>pertes<\/strong> lorsqu&rsquo;un flux part au mauvais endroit.<\/p>\n<p>Ainsi, l&rsquo;id\u00e9e qu&rsquo;\u00e9tudie <a class=\"general-link\" href=\"https:\/\/www.circle.com\/fr\/\" target=\"_blank\" rel=\"noopener nofollow\">Circle<\/a> consiste \u00e0 encadrer des <strong>remboursements<\/strong> en cas de fraude ou de hack, avec des r\u00e8gles explicites et une proc\u00e9dure transparente.<\/p>\n<p>Cela peut prendre la forme d&rsquo;un <strong>contre-<\/strong><strong>paiement<\/strong> on-chain qui r\u00e9tablit la situation plut\u00f4t qu&rsquo;une \u00ab annulation \u00bb brutale. De plus, cela peut aussi s&rsquo;appuyer sur des contrats intelligents qui pr\u00e9voient des fen\u00eatres de contestation, des gel\u00e9es temporaires \u00e0 l&rsquo;initiative de l&rsquo;utilisateur et des fonds d&rsquo;assurance d\u00e9di\u00e9s.<\/p>\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\">\n<p lang=\"en\" dir=\"ltr\">We are collaborating with <a href=\"https:\/\/twitter.com\/FireblocksHQ?ref_src=twsrc%5Etfw\" rel=\"nofollow\" target=\"_blank\">@FireblocksHQ<\/a> to accelerate <a href=\"https:\/\/twitter.com\/USDC?ref_src=twsrc%5Etfw\" rel=\"nofollow\" target=\"_blank\">@USDC<\/a> adoption for financial institutions by leveraging <a href=\"https:\/\/twitter.com\/arc?ref_src=twsrc%5Etfw\" rel=\"nofollow\" target=\"_blank\">@arc<\/a>, a new enterprise-grade blockchain, along with the interoperability of the Fireblocks Network and Circle Payments Network (CPN).<\/p>\n<p>Our stablecoin network will combine\u2026 <a href=\"https:\/\/t.co\/qhBlxgCCft\" rel=\"nofollow\" target=\"_blank\">pic.twitter.com\/qhBlxgCCft<\/a><\/p>\n<p>&mdash; Circle (@circle) <a href=\"https:\/\/twitter.com\/circle\/status\/1965437540808249653?ref_src=twsrc%5Etfw\" rel=\"nofollow\" target=\"_blank\">September 9, 2025<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p>N\u00e9anmoins, l&rsquo;objectif n&rsquo;est pas de rendre tout r\u00e9versible, mais d&rsquo;offrir un <strong>protocole de recours<\/strong> sur des cas pr\u00e9cis, avec consentement et contr\u00f4les lisibles.<\/p>\n<p>Dans cette strat\u00e9gie, Circle met en avant une <strong>industrialisation<\/strong> des usages. D&rsquo;ailleurs, le travail d&rsquo;int\u00e9gration avec les acteurs de paiement s&rsquo;inscrit dans ce cadrage plus \u00ab institutionnel \u00bb, o\u00f9 la protection de l&rsquo;utilisateur et la conformit\u00e9 comptent autant que la vitesse de r\u00e8glement.<\/p>\n<h2>Le pr\u00e9c\u00e9dent Cetus sur Sui change la perception du risque<\/h2>\n<p>La question de la r\u00e9versibilit\u00e9 ne sort pas du n\u00e9ant. En mai, l&rsquo;<strong>exchange<\/strong> d\u00e9centralis\u00e9 <strong>Cetus<\/strong> a subi un hack de plus de <strong>220 millions de dollars<\/strong> sur Sui. Heureusement, des validateurs ont r\u00e9ussi \u00e0 geler environ 162 millions, puis la communaut\u00e9 a vot\u00e9 le retour de ces fonds vers un multisig du protocole afin d&rsquo;indemniser les utilisateurs.<\/p>\n<p>Cependant, l&rsquo;\u00e9pisode a divis\u00e9 l&rsquo;\u00e9cosyst\u00e8me. Les puristes y ont vu une <strong>entorse<\/strong> \u00e0 la <a href=\"https:\/\/99bitcoins.com\/fr\/crypto-monnaie\/wallets\/defi-wallet\/\">d\u00e9centralisation<\/a>. D&rsquo;autre part, d&rsquo;autres y ont vu une \u00e9tape indispensable pour ne plus laisser les victimes livr\u00e9es \u00e0 elles-m\u00eames. Toutefois, le fait majeur tient \u00e0 la chronologie : alerte, gel, vote, restitution encadr\u00e9e.<\/p>\n<p>Autrement dit, une cha\u00eene a pu orchestrer une r\u00e9ponse gradu\u00e9e et <strong>auditable<\/strong> \u00e0 un choc de s\u00e9curit\u00e9, sans effacer la totalit\u00e9 de l&rsquo;historique ni d\u00e9pendre d&rsquo;un acteur unique.<\/p>\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\">\n<p lang=\"en\" dir=\"ltr\">\ud83d\udea8ANNOUNCEMENT <\/p>\n<p>As of earlier today, we have confirmed that an attacker has stolen approximately $223M from Cetus Protocol. We have took immediate action to lock our contract preventing further theft of funds.<\/p>\n<p>$162M of the compromised funds have been successfully paused. We are\u2026<\/p>\n<p>&mdash; Cetus\ud83d\udc33 (@CetusProtocol) <a href=\"https:\/\/twitter.com\/CetusProtocol\/status\/1925567348586815622?ref_src=twsrc%5Etfw\" rel=\"nofollow\" target=\"_blank\">May 22, 2025<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p>Ce pr\u00e9c\u00e9dent p\u00e8se dans la r\u00e9flexion actuelle. En outre, il montre qu&rsquo;un filet de <strong>s\u00e9curit\u00e9<\/strong> peut exister en on-chain, avec des garde-fous proc\u00e9duraux, et qu&rsquo;il ne s&rsquo;agit pas forc\u00e9ment d&rsquo;un \u00ab bouton magique \u00bb d&rsquo;annulation. Pour un \u00e9metteur de stablecoin, la question devient de standardiser ce type de parcours dans un cadre clair et pr\u00e9visible.<\/p>\n<h2>Qu&rsquo;est-ce que Circle doit prouver pour ne pas renier son ADN crypto ?<\/h2>\n<p>Rendre certains flux r\u00e9versibles ne vaut que si quatre conditions se <strong>r\u00e9unissent<\/strong>. D&rsquo;abord, la r\u00e8gle doit s&rsquo;\u00e9crire en on-chain et non rester \u00e0 la discr\u00e9tion d&rsquo;une salle ferm\u00e9e. Ensuite, l&rsquo;opt-in devient essentiel : l&rsquo;utilisateur ou l&rsquo;entreprise choisit la classe de paiement qui inclut un recours avec d\u00e9lais et crit\u00e8res d\u00e9finis.<\/p>\n<p>Troisi\u00e8mement, la gouvernance des cas litigieux doit recevoir une documentation \u00e0 l&rsquo;avance, y compris qui peut initier une proc\u00e9dure et sur quelles preuves. Quatri\u00e8mement, l&rsquo;indemnisation s&rsquo;appuie sur des pools d\u00e9di\u00e9s, afin d&rsquo;\u00e9viter d&rsquo;imprimer des jetons ou de cr\u00e9er une <strong>dette floue<\/strong>. Avec ces garde-fous, la \u00ab r\u00e9versibilit\u00e9 \u00bb cesse d&rsquo;\u00eatre une entorse et devient une fonctionnalit\u00e9 au service de la confiance.<\/p>\n<p>Le d\u00e9bat n&rsquo;a rien de th\u00e9orique. Chaque vague de hacks renforce la demande de protections lisibles. L&rsquo;absence de recours pousse des entreprises \u00e0 rester sur des rails traditionnels pour leurs flux <strong>critiques<\/strong>. Si USDC propose un mod\u00e8le de remboursement encadr\u00e9, auditable et choisi en amont, il peut r\u00e9duire cette friction sans transformer la cha\u00eene en chambre de compensation opaque.<\/p>\n<p>La r\u00e9versibilit\u00e9 ne constitue pas un reniement si elle devient <strong>volontaire<\/strong>, limit\u00e9e et \u00e9crite dans le code. C&rsquo;est un pont entre deux cultures de la finance. Circle a ouvert le chantier.<\/p>\n<p>Le march\u00e9 jugera sur pi\u00e8ces, \u00e0 la lumi\u00e8re des premi\u00e8res impl\u00e9mentations et de leur capacit\u00e9 \u00e0 prot\u00e9ger les victimes sans <strong>d\u00e9naturer la cha\u00eene<\/strong>.<\/p>\n<hr>\n<p><strong>Sur le m\u00eame sujet :<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/99bitcoins.com\/fr\/crypto-monnaie\/wallets\/defi-wallet\/\">DeFi Wallet : 10 Meilleurs portefeuilles DeFi disponibles 2025<\/a><\/li>\n<li>Crypto : la tokenomics est cass\u00e9e \u2014 et la solution surprend<\/li>\n<li><a href=\"https:\/\/99bitcoins.com\/fr\/crypto-monnaie\/meilleures-cryptos-a-acheter\/\">Meilleures cryptos \u00e0 acheter maintenant en 2025 \u2013 Notre Top 7<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Circle examine des m\u00e9canismes de r\u00e9versibilit\u00e9 qui permettraient de r\u00e9cup\u00e9rer des fonds en cas de fraude ou de hack, tout en pr\u00e9servant la finalit\u00e9 du r\u00e8glement. En effet, le message devient clair : l&rsquo;immuabilit\u00e9 reste un pilier technique, mais l&rsquo;absence totale de recours ne refl\u00e8te pas la mani\u00e8re dont fonctionne la finance \u00e0 grande \u00e9chelle&#8230;<\/p>\n","protected":false},"author":135978,"featured_media":20722,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[10,6],"tags":[11],"coin":[15],"class_list":["post-20716","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-altcoins","category-actu","tag-altcoin"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Coup de tonnerre : Circle teste la r\u00e9versibilit\u00e9 USDC contre fraudes et hacks<\/title>\n<meta name=\"description\" content=\"Circle \u00e9tudie la r\u00e9versibilit\u00e9 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