{"id":321394,"date":"2026-03-11T06:30:00","date_gmt":"2026-03-11T05:30:00","guid":{"rendered":"https:\/\/legrandcontinent.eu\/fr\/?p=321394"},"modified":"2026-03-10T19:45:22","modified_gmt":"2026-03-10T18:45:22","slug":"les-agents-du-chaos-un-risque-systemique-de-lintelligence-artificielle","status":"publish","type":"post","link":"https:\/\/legrandcontinent.eu\/fr\/2026\/03\/11\/les-agents-du-chaos-un-risque-systemique-de-lintelligence-artificielle\/","title":{"rendered":"Les agents du chaos&#160;: un risque syst\u00e9mique de l\u2019intelligence artificielle"},"content":{"rendered":"\n<p>La s\u00e9curit\u00e9 des syst\u00e8mes multi-agents semble aujourd\u2019hui se situer au m\u00eame point que celle des grands mod\u00e8les de langage (LLM) en 2023&#160;: un champ encore \u00e9mergent, o\u00f9 la compr\u00e9hension des vuln\u00e9rabilit\u00e9s progresse plus lentement que le d\u00e9ploiement des syst\u00e8mes.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Une cartographie des ph\u00e9nom\u00e8nes \u00e9mergents dans ce nouveau contexte multi-agents, caract\u00e9ris\u00e9 par la m\u00e9moire persistante, l&rsquo;autonomie, le nombre d&rsquo;outils utilis\u00e9s et d&rsquo;interlocuteurs, ainsi que la dur\u00e9e de la communication, est donc n\u00e9cessaire.<\/li>\n<\/ul>\n\n\n\n<p>Le monde acad\u00e9mique joue un r\u00f4le fondamental dans la production de ce type de recherche qui expose les d\u00e9faillances syst\u00e9miques.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La production de ce type d&rsquo;articles demande \u00e9galement moins de ressources (calcul, etc.) pour travailler \u00e0 la fronti\u00e8re de la s\u00e9curit\u00e9 que les ressources n\u00e9cessaires pour \u00e9tudier le d\u00e9veloppement des mod\u00e8les actuels.<\/li>\n\n\n\n<li>Le papier documente donc cet exercice de red teaming multi-agent, \u00e0 la mani\u00e8re des exp\u00e9riences de social engineering et de jailbreak r\u00e9alis\u00e9es sur les mod\u00e8les de conversation en 2023 (ici, uniquement avec Kimi et Claude comme mod\u00e8les sous-jacents), afin de caract\u00e9riser les sch\u00e9mas de vuln\u00e9rabilit\u00e9 \u00e0 traiter.<\/li>\n<\/ul>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/legrandcontinent.eu\/fr\/wp-content\/uploads\/sites\/2\/2026\/03\/2602.20021v1.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Contenu embarqu\u00e9 Agents of Chaos.\"><\/object><a id=\"wp-block-file--media-4bf29cb2-a09b-46e9-bc98-d9281ffa5ba9\" href=\"https:\/\/legrandcontinent.eu\/fr\/wp-content\/uploads\/sites\/2\/2026\/03\/2602.20021v1.pdf\">Agents of Chaos<\/a><a href=\"https:\/\/legrandcontinent.eu\/fr\/wp-content\/uploads\/sites\/2\/2026\/03\/2602.20021v1.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-4bf29cb2-a09b-46e9-bc98-d9281ffa5ba9\">T\u00e9l\u00e9charger<\/a><\/div>\n\n\n\n<p>Le papier identifie ainsi plusieurs sch\u00e9mas de vuln\u00e9rabilit\u00e9, dont des fuites de donn\u00e9es personnelles, des boucles infinies entre agents pendant plusieurs jours, la propagation de comportements dangereux (contamination entre agents), la surr\u00e9action des agents\u2026<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cela souligne le besoin de maturer l\u2019utilisation des LLMs dans un contexte multi-agents et l\u2019infrastructure sous-jacente ( incluant syst\u00e8me de contr\u00f4le, communication, m\u00e9moire persistante, orchestration des t\u00e2ches), ainsi que la n\u00e9cessit\u00e9 d&rsquo;aborder les questions de la pr\u00e9visibilit\u00e9 et de la supervision, qui sont essentielles \u00e0 leur d\u00e9ploiement.<\/li>\n<\/ul>\n\n\n\n<p>Un benchmark et une infrastructure d\u2019\u00e9valuation sont \u00e9galement n\u00e9cessaires pour ces sc\u00e9narios.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Lorsque l&rsquo;on examine les rapports techniques actuels, on constate qu&rsquo;il n&rsquo;existe pas encore de cadre ou d&rsquo;infrastructure mature permettant de mesurer syst\u00e9matiquement ces ph\u00e9nom\u00e8nes (safety multi-agent)&#160;: la plupart des \u00e9valuations de s\u00e9curit\u00e9 reposent encore sur des benchmarks et des mod\u00e8les de menace single-agent&nbsp;<span class='whitespace-nowrap'><span id='easy-footnote-1-321394' class='easy-footnote-margin-adjust'><\/span><span class='easy-footnote'><a href='https:\/\/legrandcontinent.eu\/fr\/2026\/03\/11\/les-agents-du-chaos-un-risque-systemique-de-lintelligence-artificielle\/#easy-footnote-bottom-1-321394' title='Par exemple, voir&amp;#160;: &lt;a href=&quot;https:\/\/inspect.aisi.org.uk\/evals\/#category=Safeguards&quot;&gt;Inspect Evals, Safeguards&lt;\/a&gt;.'><sup>1<\/sup><\/a><\/span><\/span>.<\/li>\n\n\n\n<li>Les benchmarks publics de s\u00e9curit\u00e9 \u00e9valuent principalement des sc\u00e9narios \u00e0 horizon court (souvent limit\u00e9s \u00e0 quelques tours d\u2019interaction), et reposent sur un ensemble restreint de prompts adversariaux ainsi que sur des pipelines de g\u00e9n\u00e9ration de donn\u00e9es synth\u00e9tiques&nbsp;<span class='whitespace-nowrap'><span id='easy-footnote-2-321394' class='easy-footnote-margin-adjust'><\/span><span class='easy-footnote'><a href='https:\/\/legrandcontinent.eu\/fr\/2026\/03\/11\/les-agents-du-chaos-un-risque-systemique-de-lintelligence-artificielle\/#easy-footnote-bottom-2-321394' title='Par exemple &lt;a href=&quot;https:\/\/arxiv.org\/abs\/2507.20534&quot;&gt;Kimi\u20112 Technical Report&lt;\/a&gt; ou&lt;a href=&quot;https:\/\/arxiv.org\/pdf\/2601.03267&quot;&gt; GPT-5 System Card&lt;\/a&gt;, OpenAI, 13 ao\u00fbt 2025.'><sup>2<\/sup><\/a><\/span><\/span>.<\/li>\n\n\n\n<li>De plus, avec les LLMs et les agents, on observe que la d\u00e9finition d&rsquo;objectifs par le biais de benchmarks permet d&rsquo;orienter le progr\u00e8s&#160;: les mod\u00e8les\/agents finissent par saturer un nouveau benchmark, g\u00e9n\u00e9ralement quelques mois apr\u00e8s son introduction, en internalisant la nouvelle capacit\u00e9 \u2014 telle que mesur\u00e9e par le benchmark.<\/li>\n\n\n\n<li>La question est donc de savoir comment transposer cette dynamique au cadre multi-agent pour \u00e9tudier par exemple la propagation des vuln\u00e9rabilit\u00e9s, l\u2019alignement multi-agents, la manipulation multi-agent ou l\u2019amplification des erreurs.<\/li>\n<\/ul>\n\n\n\n<p>La fronti\u00e8re de l\u2019\u00e9valuation de l\u2019IA \u00e9volue d\u2019une \u00e9valuation des capacit\u00e9s de mod\u00e8les\/agents \u00e0 un cadre de syst\u00e8mes multi-agents d\u00e9ploy\u00e9s dans un environnement social ou \u00e9conomique concret&nbsp;<span class='whitespace-nowrap'><span id='easy-footnote-3-321394' class='easy-footnote-margin-adjust'><\/span><span class='easy-footnote'><a href='https:\/\/legrandcontinent.eu\/fr\/2026\/03\/11\/les-agents-du-chaos-un-risque-systemique-de-lintelligence-artificielle\/#easy-footnote-bottom-3-321394' title='Moritz Weckbecker, Jonas Muller, Ben Hagag et Michael Mulet, \u00ab&amp;#160;&lt;a href=&quot;https:\/\/arxiv.org\/pdf\/2603.00131&quot;&gt;Thought Virus&amp;#160;: Viral Misalignment via Subliminal Prompting in Multi-Agent Systems&lt;\/a&gt;&amp;#160;\u00bb, Preprint, 3 mars 2026.'><sup>3<\/sup><\/a><\/span><\/span>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Le papier souligne ainsi que le d\u00e9veloppement de la s\u00e9curit\u00e9 et de la fiabilit\u00e9 de ces syst\u00e8mes est aujourd\u2019hui en retard par rapport au rythme de leur d\u00e9veloppement et de leur d\u00e9ploiement&#160;: \u00ab&#160;Contrairement aux risques historiques d\u2019Internet, o\u00f9 les utilisateurs ont eu le temps de d\u00e9velopper des strat\u00e9gies de d\u00e9fense, les implications de la d\u00e9l\u00e9gation d\u2019autonomie \u00e0 des agents IA persistants ne sont pas encore largement comprises ni int\u00e9gr\u00e9es (et pourraient ne pas suivre le rythme acc\u00e9l\u00e9r\u00e9 du d\u00e9veloppement de ces agents)&#160;\u00bb.<\/li>\n\n\n\n<li>Il s&rsquo;agit d&rsquo;un d\u00e9fi important en mati\u00e8re de gouvernance et de responsabilit\u00e9 qui demande une adaptation des cadres de gouvernance, de supervision et de responsabilit\u00e9 \u00e0 des syst\u00e8mes d&rsquo;agents autonomes persistants qui interagissent.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Selon une \u00e9tude largement relay\u00e9e, lorsque des agents d&rsquo;IA autonomes sont plac\u00e9s dans des environnements ouverts et concurrentiels, ils ne se contentent pas d&rsquo;optimiser leurs performances.<\/p>\n<p>Ils d\u00e9rivent naturellement vers la manipulation, la collusion et le sabotage strat\u00e9gique.<\/p>\n<p>Nous faisons le point sur cette alerte syst\u00e9mique.<\/p>\n","protected":false},"author":2622,"featured_media":321405,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"templates\/post-briefings.php","format":"standard","meta":{"_acf_changed":false,"_trash_the_other_posts":false,"footnotes":""},"categories":[1729],"tags":[],"staff":[2457],"editorial_format":[],"serie":[],"audience":[],"geo":[2163],"class_list":["post-321394","post","type-post","status-publish","format-standard","hentry","category-numerique","staff-victor-storchan","geo-monde"],"acf":{"open_in_webview":false,"accent":false},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.1.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Les agents du chaos : un risque syst\u00e9mique de l&#039;IA<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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Ils d\u00e9rivent naturellement vers la manipulation, la collusion et le sabotage strat\u00e9gique.  Nous faisons le point sur cette alerte syst\u00e9mique.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/legrandcontinent.eu\/fr\/2026\/03\/11\/les-agents-du-chaos-un-risque-systemique-de-lintelligence-artificielle\/\" \/>\n<meta property=\"og:site_name\" content=\"Le Grand Continent\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-11T05:30:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/legrandcontinent.eu\/fr\/wp-content\/uploads\/sites\/2\/2026\/03\/gc-share-IA-agent-chaos.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1900\" \/>\n\t<meta property=\"og:image:height\" content=\"1064\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Marin Saillofest\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/legrandcontinent.eu\/fr\/wp-content\/uploads\/sites\/2\/2026\/03\/gc-share-IA-agent-chaos.png\" \/>\n<meta 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