{"id":7041,"date":"2024-09-20T00:53:34","date_gmt":"2024-09-19T22:53:34","guid":{"rendered":"https:\/\/web3factory.net\/fr\/posts\/the-risks-of-defi\/"},"modified":"2025-02-08T21:35:10","modified_gmt":"2025-02-08T20:35:10","slug":"les-risques-en-defi","status":"publish","type":"post","link":"https:\/\/web3factory.net\/fr\/posts\/les-risques-en-defi\/","title":{"rendered":"Les risques en DeFi"},"content":{"rendered":"<span class=\"simplefavorite-button\" data-postid=\"7041\" data-siteid=\"1\" data-groupid=\"1\" data-favoritecount=\"1\" style=\"box-shadow:none;-webkit-box-shadow:none;-moz-box-shadow:none;\"><label class=\"favoritebtn\"><i aria-hidden=\"true\" class=\"fas fa-bookmark favoritesize\"><\/i><span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-custom\">\u200e\u200e \u200e \u200e Ajouter \u00e0 ma list\u200ee \u200e \u200e <\/span><\/label><\/span>\n<p>Les Finances D\u00e9centralis\u00e9es (<span tabindex='0' class='glossary-item-container'>DeFi<span class='glossary-item-hidden-content'><span class='glossary-item-header'>DeFi<\/span> <span class='glossary-item-description'>Les services DeFi utilisent des smart contracts, des protocoles d\u00e9centralis\u00e9s et des jetons pour offrir une gamme de services financiers qui peuvent parfois remplacer ceux propos\u00e9s par les banques, tels que le pr\u00eat\/emprunt, la gestion d'actifs, l'assurance ou l'\u00e9change d'actifs.<\/span><\/span><\/span>) sont un concept r\u00e9volutionnaire, mais elles ne sont pas sans risques.<\/p>\n\n\n\n<p>De nombreux protocoles, qu&rsquo;ils soient grands ou petits, audit\u00e9s ou non, ont vu des montants colossaux dispara\u00eetre. Certains risques auraient pu \u00eatre anticip\u00e9s, mais certaines pertes n&rsquo;\u00e9taient pas pr\u00e9visibles, m\u00eame par les plus exp\u00e9riment\u00e9s.<\/p>\n\n\n\n<p>L&rsquo;\u00e9cosyst\u00e8me est si jeune, avec de nouveaux concepts, coupl\u00e9s \u00e0 l&rsquo;attrait de sommes \u00e9normes et \u00e0 un manque de clart\u00e9 sur la r\u00e9glementation&#8230; c&rsquo;est l&rsquo;endroit parfait pour tout hacker, qu&rsquo;il soit un passionn\u00e9 isol\u00e9 ou une organisation derri\u00e8re la Cor\u00e9e du Nord.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-risques-lies-aux-smart-contracts\"><strong><span style=\"text-decoration: underline;\">Risques li\u00e9s aux Smart Contracts<\/span><\/strong><\/h3>\n\n\n\n<p>Les smart contracts sont au c\u0153ur de la DeFi. Ils automatisent les transactions mais sont \u00e9galement vuln\u00e9rables. Une simple erreur de code peut ouvrir la porte \u00e0 des attaques, et une fois qu&rsquo;une transaction est effectu\u00e9e, elle est irr\u00e9versible. De plus, certains acteurs accusent les protocoles de laisser intentionnellement des vuln\u00e9rabilit\u00e9s pour d\u00e9guiser la fraude en piratage.<\/p>\n\n\n\n<p>L&rsquo;impact des oracles, qui alimentent les smart contracts avec des informations externes, doit \u00e9galement \u00eatre pris en compte. Les oracles peuvent \u00eatre manipul\u00e9s ou mal fonctionner, compromettant ainsi l&rsquo;int\u00e9grit\u00e9 des transactions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-exploits-et-vulnerabilites\"><strong><span style=\"text-decoration: underline;\">Exploits et Vuln\u00e9rabilit\u00e9s<\/span><\/strong><\/h3>\n\n\n\n<p>La DeFi est comme un \u00e9norme ensemble de Legos o\u00f9 chaque pi\u00e8ce (protocole) peut s&#8217;embo\u00eeter avec une autre. Cela cr\u00e9e un \u00e9cosyst\u00e8me riche et interconnect\u00e9 mais aussi complexe et vuln\u00e9rable. <br>Les bugs et les d\u00e9fauts dans les smart contracts peuvent \u00eatre exploit\u00e9s par des acteurs malveillants, entra\u00eenant d&rsquo;importantes pertes financi\u00e8res.<\/p>\n\n\n\n<p>Par exemple, lors de p\u00e9riodes de forte volatilit\u00e9, certains hackers exploitent des vuln\u00e9rabilit\u00e9s pour emprunter un <span tabindex='0' class='glossary-item-container'>token<span class='glossary-item-hidden-content'><span class='glossary-item-header'>Token<\/span> <span class='glossary-item-description'>Un actif num\u00e9rique \u00e9mis sur une blockchain qui repr\u00e9sente divers services publics, droits ou titres.<\/span><\/span><\/span> avec une crypto qui, sur le papier, vaut un certain montant mais qui en r\u00e9alit\u00e9 en vaut beaucoup moins. Cela est rendu possible gr\u00e2ce \u00e0 la latence des oracles et \u00e0 la manipulation des prix et de la liquidit\u00e9 (un actif peut avoir un prix nominal, mais s&rsquo;il y a peu de liquidit\u00e9, le prix peut \u00eatre facilement manipul\u00e9).<\/p>\n\n\n\n<p>Ces exploits sont \u00e9galement facilit\u00e9s par les \u00ab\u00a0emprunts flash\u00a0\u00bb, qui permettent des op\u00e9rations \u00e0 grande \u00e9chelle.<\/p>\n\n\n\n<p>Il convient de noter que ces exploits et les emprunts flash, qui mettent continuellement la pression sur les d\u00e9veloppeurs de projets, contribuent \u00e0 renforcer la DeFi au fil du temps. Les codes sources \u00e9prouv\u00e9s (tels que Uniswap, Curve, Aave) sont r\u00e9utilis\u00e9s et adapt\u00e9s, \u00e0 condition que les contrats (forks) soient bien ex\u00e9cut\u00e9s et mis \u00e0 jour&#8230;<\/p>\n\n\n\n<p>Les bridges sont souvent une cible id\u00e9ale pour les hackers, car ils connectent diff\u00e9rentes blockchains et infrastructures, augmentant ainsi le nombre de vuln\u00e9rabilit\u00e9s potentielles.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-escroqueries-et-rug-pulls\"><strong><span style=\"text-decoration: underline;\">Escroqueries et \u00ab\u00a0Rug Pulls\u00a0\u00bb<\/span><\/strong><\/h3>\n\n\n\n<p>Un \u00ab\u00a0rug pull\u00a0\u00bb est une escroquerie o\u00f9 les d\u00e9veloppeurs retirent tout l&rsquo;argent d&rsquo;un projet, laissant les investisseurs avec des tokens sans valeur. Il est essentiel de mener des recherches approfondies et de s&rsquo;assurer de la l\u00e9gitimit\u00e9 des projets dans lesquels vous investissez.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-naviguer-en-toute-securite-dans-defi\"><strong><span style=\"text-decoration: underline;\">Naviguer en toute s\u00e9curit\u00e9 dans DeFi<\/span><\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Recherche Approfondie :<\/strong> Avant d&rsquo;investir, il est crucial de rechercher en profondeur les projets et les tokens. V\u00e9rifiez les sites web, les whitepapers et les ant\u00e9c\u00e9dents des d\u00e9veloppeurs. Plus un projet est ancien, plus il est susceptible d&rsquo;\u00eatre r\u00e9silient (effet Lindy). En tant que d\u00e9butant, je limiterais les investissements \u00e0 un m\u00eame protocole, <span tabindex='0' class='glossary-item-container'>blockchain<span class='glossary-item-hidden-content'><span class='glossary-item-header'>Blockchain<\/span> <span class='glossary-item-description'>Un registre public et immuable de transactions cryptographiques, organis\u00e9 en blocs.<\/span><\/span><\/span> ou pool de liquidit\u00e9. Je me sentirais plus \u00e0 l&rsquo;aise avec des blockchains d\u00e9centralis\u00e9es et plus anciennes comme Ethereum, ainsi qu&rsquo;avec des projets bien \u00e9tablis comme Curve, AAVE et Uniswap.<\/li>\n\n\n\n<li><strong>S\u00e9curit\u00e9 de la Cl\u00e9 Priv\u00e9e :<\/strong> Il vaut mieux utiliser un cold <span tabindex='0' class='glossary-item-container'>wallet<span class='glossary-item-hidden-content'><span class='glossary-item-header'>Wallet<\/span> <span class='glossary-item-description'>Outil utilis\u00e9 pour stocker, envoyer et recevoir des crypto-monnaies.<\/span><\/span><\/span> (portefeuille froid) et \u00eatre tr\u00e8s prudent avec les liens sur lesquels vous cliquez. Faites attention \u00e0 l&rsquo;endroit o\u00f9 vous stockez vos cl\u00e9s de r\u00e9cup\u00e9ration. N&rsquo;utilisez que les liens provenant de comptes Twitter officiels et v\u00e9rifiez le nombre de followers ainsi que le @. Evitez de cliquer sur des liens provenant de Telegram, Discord, et m\u00eame de Google (JAMAIS cliquer sur les liens sponsoris\u00e9s).<\/li>\n\n\n\n<li><strong>Rejoindre des Communaut\u00e9s :<\/strong> Participez \u00e0 des communaut\u00e9s comme Telegram ou Discord pour rester inform\u00e9 et poser des questions. Si vous avez des doutes, demandez conseil \u00e0 des gens plus exp\u00e9riment\u00e9s.<\/li>\n<\/ul>\n\n\n\n<p>Il est tr\u00e8s difficile de juger objectivement la s\u00e9curit\u00e9 d&rsquo;un projet. Les audits r\u00e9alis\u00e9s par certains acteurs, comme Certik, peuvent \u00eatre superficiels (seulement d\u00e9clarer qu&rsquo;il n&rsquo;y a pas d&rsquo;erreurs dans le code) et ne tiennent pas compte de tous les crit\u00e8res (d\u00e9centralisation, <span tabindex='0' class='glossary-item-container'>oracle<span class='glossary-item-hidden-content'><span class='glossary-item-header'>Oracle<\/span> <span class='glossary-item-description'>Un service qui fournit des donn\u00e9es hors cha\u00eene \u00e0 une blockchain, permettant aux smart contracts d'interagir avec des informations du monde r\u00e9el.<\/span><\/span><\/span>, interconnexion, liquidit\u00e9, etc.). Cependant, il est tout de m\u00eame plus rassurant qu&rsquo;un protocole soit audit\u00e9 plusieurs fois et paie r\u00e9guli\u00e8rement des primes pour les bugs \/ failles. (Sinc\u00e8rement, contrairement \u00e0 Mirror Protocol, qui a lanc\u00e9 un gros bounty pour les bugs qui n&rsquo;a jamais \u00e9t\u00e9 pay\u00e9, malgr\u00e9 deux failles majeures ayant conduit \u00e0 une perte de 90 millions de dollars&#8230;)<\/p>\n\n\n\n<p>L&rsquo;\u00e2ge et la r\u00e9putation d&rsquo;un protocole restent les deux \u00e9l\u00e9ments cl\u00e9s.<\/p>\n\n\n\n<p>La DeFi est une fronti\u00e8re passionnante de l&rsquo;innovation financi\u00e8re, mais elle est \u00e9galement jonch\u00e9e de risques et de d\u00e9fis. En restant inform\u00e9 et en faisant preuve de prudence, vous pouvez naviguer dans l&rsquo;\u00e9cosyst\u00e8me DeFi avec une confiance accrue et une s\u00e9curit\u00e9 renforc\u00e9e.<\/p>\n\n\n\n<p><strong>5 des plus grands hacks et pertes jamais enregistr\u00e9s en crypto :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ronin Network :<\/strong> Environ 624 millions de dollars ont \u00e9t\u00e9 vol\u00e9s en raison d&rsquo;un <span tabindex='0' class='glossary-item-container'>hack<span class='glossary-item-hidden-content'><span class='glossary-item-header'>Hack<\/span> <span class='glossary-item-description'>Une faille de s\u00e9curit\u00e9 permettant un acc\u00e8s non autoris\u00e9 \u00e0 des biens ou \u00e0 des donn\u00e9es.<\/span><\/span><\/span> de validateur. Par cons\u00e9quent, la d\u00e9centralisation \u00e9tait en faute.<\/li>\n\n\n\n<li><strong>BNB <span tabindex='0' class='glossary-item-container'>Bridge<span class='glossary-item-hidden-content'><span class='glossary-item-header'>Bridge<\/span> <span class='glossary-item-description'>Protocole permettant le transfert d'actifs d'une blockchain \u00e0 une autre.<\/span><\/span><\/span> :<\/strong> 586 millions de dollars \u2013 Le hacker a falsifi\u00e9 des preuves de d\u00e9p\u00f4t dans des smart contracts pour frapper du BNB.<\/li>\n\n\n\n<li><strong>Wintermute :<\/strong> 160 millions de dollars \u2013 Piratage d&rsquo;une adresse vanity, portefeuille administrateur.<\/li>\n\n\n\n<li><strong>Wormhole Bridge :<\/strong> 326 millions de dollars \u2013 Piratage d&rsquo;un smart contracts de pont entre blockchains.<\/li>\n\n\n\n<li><strong>Poly Network :<\/strong> 611 millions de dollars \u2013 Piratage d&rsquo;un smart contracts multicha\u00eene.<\/li>\n<\/ul>\n\n\n\n<p>Pour plus d&rsquo;informations sur les hacks, visitez : <a href=\"https:\/\/rekt.news\/\">rekt.news<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>D\u00e9couvrez les principaux risques dans la DeFi, y compris les vuln\u00e9rabilit\u00e9s des smart contracts et les scams.<\/p>\n","protected":false},"author":2,"featured_media":13065,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[86,84],"tags":[],"class_list":["post-7041","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-capital-use","category-defi"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.0 (Yoast SEO v23.5) - 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