{"id":1660,"date":"2026-04-20T16:35:17","date_gmt":"2026-04-20T16:35:17","guid":{"rendered":"https:\/\/global.livebitcoinnews.com\/fr\/2026\/04\/20\/claude-mythos-vient-de-rendre-obsolete-le-modele-de-securite-du-web3\/"},"modified":"2026-04-20T16:35:17","modified_gmt":"2026-04-20T16:35:17","slug":"claude-mythos-vient-de-rendre-obsolete-le-modele-de-securite-du-web3","status":"publish","type":"post","link":"https:\/\/global.livebitcoinnews.com\/fr\/2026\/04\/20\/claude-mythos-vient-de-rendre-obsolete-le-modele-de-securite-du-web3\/","title":{"rendered":"Claude Mythos vient de rendre obsol\u00e8te le mod\u00e8le de s\u00e9curit\u00e9 du Web3"},"content":{"rendered":"

Claude Mythos peut encha\u00eener quatre vuln\u00e9rabilit\u00e9s en une nuit. Le Project Glasswing d’Anthropic signale que le mod\u00e8le de s\u00e9curit\u00e9 de la Web3 est d\u00e9j\u00e0 obsol\u00e8te.<\/strong><\/em><\/p>\n

Anthropic a discr\u00e8tement confirm\u00e9 quelque chose que l’industrie de la blockchain aurait d\u00fb redouter. Son mod\u00e8le fronti\u00e8re non publi\u00e9, Claude Mythos, a franchi un seuil que les chercheurs en s\u00e9curit\u00e9 esp\u00e9raient depuis des ann\u00e9es ne jamais voir arriver. Des ing\u00e9nieurs sans aucune formation en s\u00e9curit\u00e9 peuvent d\u00e9sormais lui soumettre une requ\u00eate le soir et se r\u00e9veiller avec un exploit d’ex\u00e9cution de code \u00e0 distance fonctionnel.<\/span><\/p>\n

Ce n’est pas un avertissement pour l’avenir. C’est d\u00e9j\u00e0 arriv\u00e9.<\/span><\/p>\n

Selon<\/span> alicharts sur X<\/span><\/a>, Mythos a identifi\u00e9 un bogue vieux de 27 ans dans OpenBSD qui avait \u00e9chapp\u00e9 aux auditeurs humains pendant des d\u00e9cennies. Le m\u00eame mod\u00e8le a encha\u00een\u00e9 quatre vuln\u00e9rabilit\u00e9s distinctes pour s’\u00e9chapper d’un bac \u00e0 sable (sandbox) de navigateur. Cette t\u00e2che prend typiquement des mois aux \u00e9quipes humaines d’\u00e9lite pour \u00eatre r\u00e9alis\u00e9e.<\/span><\/p>\n

Ce que la Web3 refuse d’admettre<\/b><\/h2>\n

Anthropic<\/span> a publi\u00e9 les d\u00e9tails directement<\/span><\/a>. Le langage \u00e9tait d\u00e9lib\u00e9r\u00e9 et sans \u00e9quivoque. Mythos Preview avait d\u00e9j\u00e0 trouv\u00e9 des milliers de vuln\u00e9rabilit\u00e9s de haute gravit\u00e9, y compris dans tous les principaux syst\u00e8mes d’exploitation et navigateurs web. Les protocoles blockchain, qui d\u00e9pendent d’audits humains p\u00e9riodiques, sont directement dans le collimateur.<\/span><\/p>\n

Project Glasswing est la r\u00e9ponse. Amazon Web Services, Apple, Broadcom, Cisco, CrowdStrike, Google, JPMorganChase, Microsoft, NVIDIA, Palo Alto Networks et la Linux Foundation se sont joints \u00e0 l’effort. Anthropic a engag\u00e9 jusqu’\u00e0 100 millions de dollars en cr\u00e9dits d’utilisation pour le d\u00e9ploiement d\u00e9fensif du mod\u00e8le. Quatre millions de dollars suppl\u00e9mentaires sont all\u00e9s directement \u00e0 des organisations de s\u00e9curit\u00e9 open-source.<\/span><\/p>\n

Le cadre pos\u00e9 par Anthropic \u00e9tait clair. Des capacit\u00e9s d’IA comme Mythos vont prolif\u00e9rer et elles atteindront des acteurs qui ne sont pas engag\u00e9s \u00e0 les d\u00e9ployer de mani\u00e8re s\u00fbre. Les retomb\u00e9es pour la s\u00e9curit\u00e9 publique et nationale pourraient \u00eatre graves.<\/span><\/p>\n

Les revenus tir\u00e9s des exploits d’attaques assist\u00e9es par l’IA sur les<\/span> smart contracts blockchain<\/span><\/a> doublent \u00e0 peu pr\u00e8s tous les 1,3 mois. Cette trajectoire est ant\u00e9rieure \u00e0 la mise au public de Mythos.<\/span><\/p>\n

Les audits p\u00e9riodiques sont d\u00e9j\u00e0 morts<\/b><\/h2>\n

Comme l’a not\u00e9 alicharts sur X, le mod\u00e8le traditionnel des examens de s\u00e9curit\u00e9 p\u00e9riodiques est termin\u00e9. Les protocoles blockchain qui n’int\u00e8grent pas de bouclier autonome d’IA dans leur pile se feront d\u00e9manteler par la prochaine g\u00e9n\u00e9ration d’agents adversariaux. Le post sur X d\u00e9crivait Mythos comme un tueur de cat\u00e9gorie pr\u00e9cis\u00e9ment en raison de sa capacit\u00e9 \u00e0 encha\u00eener des \u00e9tapes d’attaque.<\/span><\/p>\n

Cela correspond \u00e0 ce que montre le<\/span> PDF de recherche d’Anthropic<\/span><\/a>. La recherche sur Mythos Preview a signal\u00e9 une acc\u00e9l\u00e9ration suffisamment forte pour exiger une action imm\u00e9diate, et non apr\u00e8s la prochaine br\u00e8che majeure d’un protocole.<\/span><\/p>\n

La<\/span> page de pr\u00e9visualisation de Glasswing<\/span><\/a> a expos\u00e9 le probl\u00e8me central clairement : la capacit\u00e9 de codage de l’IA a d\u00e9pass\u00e9 tous les humains, \u00e0 l’exception des plus comp\u00e9tents, pour trouver et exploiter des vuln\u00e9rabilit\u00e9s. Les protocoles Web3, dont beaucoup reposent encore sur des audits tiers peu fr\u00e9quents, n’ont pas \u00e9t\u00e9 con\u00e7us avec ce mod\u00e8le de menace \u00e0 l’esprit.<\/span><\/p>\n

Le protocole de pr\u00eat DeFi Moonwell a perdu environ 1,78 million de dollars dans un incident distinct mais li\u00e9, attribu\u00e9 \u00e0 du code assist\u00e9 par l’IA. L’auditeur de smart contracts pashov a signal\u00e9 sur X ce qu’il a d\u00e9crit comme peut-\u00eatre le premier exploit directement li\u00e9 \u00e0 du Solidity g\u00e9n\u00e9r\u00e9 par \u00ab\u00a0vibe-coding\u00a0\u00bb. Le relecteur humain l’avait pourtant approuv\u00e9. C’est cet \u00e9cart que Mythos exploite. L’image compl\u00e8te de la fa\u00e7on dont<\/span> Claude est d\u00e9j\u00e0 en train de remodeler l’audit de code Web3<\/span><\/a> se dessine depuis des mois.<\/span><\/p>\n

Un effort de d\u00e9fense de 100 M$, aucune garantie<\/b><\/h2>\n

Quarante organisations suppl\u00e9mentaires, construisant ou maintenant des infrastructures logicielles critiques, ont obtenu un acc\u00e8s anticip\u00e9 \u00e0 Mythos Preview pour des analyses d\u00e9fensives. Anthropic a \u00e9t\u00e9 explicite. Aucune organisation ne peut r\u00e9soudre cela seule. Les capacit\u00e9s de l’IA fronti\u00e8re devraient progresser consid\u00e9rablement dans les prochains mois seulement.<\/span><\/p>\n

La Web3 n’est pas nomm\u00e9ment incluse dans la coalition initiale de Glasswing. Cette absence est r\u00e9v\u00e9latrice.<\/span><\/p>\n

La course entre les attaques assist\u00e9es par l’IA et la d\u00e9fense assist\u00e9e par l’IA est d\u00e9sormais le seul audit qui compte. Les protocoles blockchain qui s’appuient sur des examens de s\u00e9curit\u00e9 manuels utilisent un mod\u00e8le qui \u00e9tait d\u00e9j\u00e0 obsol\u00e8te avant m\u00eame l’annonce de Mythos.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Claude Mythos peut encha\u00eener quatre vuln\u00e9rabilit\u00e9s en une nuit. Le Project Glasswing d’Anthropic signale que le mod\u00e8le de s\u00e9curit\u00e9 de la Web3 est d\u00e9j\u00e0 obsol\u00e8te. Anthropic a discr\u00e8tement confirm\u00e9 quelque chose que l’industrie de la blockchain aurait d\u00fb redouter. Son mod\u00e8le fronti\u00e8re non publi\u00e9, Claude Mythos, a franchi un seuil que les chercheurs en s\u00e9curit\u00e9 […]<\/p>\n","protected":false},"author":6,"featured_media":1659,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[479],"tags":[],"class_list":["post-1660","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-web3-news"],"acf":[],"yoast_head":"\nClaude Mythos vient de rendre obsol\u00e8te le mod\u00e8le de s\u00e9curit\u00e9 du Web3 - France Live Bitcoin News<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/global.livebitcoinnews.com\/fr\/2026\/04\/20\/claude-mythos-vient-de-rendre-obsolete-le-modele-de-securite-du-web3\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Claude Mythos vient de rendre obsol\u00e8te le mod\u00e8le de s\u00e9curit\u00e9 du Web3 - France Live Bitcoin News\" \/>\n<meta property=\"og:description\" content=\"Claude Mythos peut encha\u00eener quatre vuln\u00e9rabilit\u00e9s en une nuit. 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Le Project Glasswing d’Anthropic signale que le mod\u00e8le de s\u00e9curit\u00e9 de la Web3 est d\u00e9j\u00e0 obsol\u00e8te. Anthropic a discr\u00e8tement confirm\u00e9 quelque chose que l’industrie de la blockchain aurait d\u00fb redouter. 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