{"id":51354,"date":"2026-08-13T09:00:00","date_gmt":"2026-08-13T07:00:00","guid":{"rendered":"https:\/\/www.cloudmagazin.com\/?p=51354"},"modified":"2026-11-03T18:19:12","modified_gmt":"2026-11-03T17:19:12","slug":"maitrise-souveraine-des-donnees-dependance-face-au-modele-dintelligence","status":"publish","type":"post","link":"https:\/\/www.cloudmagazin.com\/fr\/2026\/08\/13\/maitrise-souveraine-des-donnees-dependance-face-au-modele-dintelligence\/","title":{"rendered":"Donn\u00e9es souveraines, mod\u00e8le d\u2019IA sous d\u00e9pendance"},"content":{"rendered":"<p><strong>Une r\u00e9gion cloud dans l\u2019UE permet de contr\u00f4ler le lieu de traitement des donn\u00e9es. Elle ne dit pas si un changement de mod\u00e8le d\u2019IA reste possible. Selon une enqu\u00eate d\u2019Accenture, 60 % des organisations appliquaient des exigences de souverainet\u00e9 ou de localisation aux donn\u00e9es, contre 22 % aux mod\u00e8les d\u2019IA. Les DSI doivent donc pr\u00e9voir t\u00f4t le changement de mod\u00e8le dans l\u2019architecture et les contrats.<\/strong><\/p>\n<h2>L&rsquo;essentiel en bref<\/h2>\n<div style=\"background:#f8fbfd;border:1px solid rgba(11,183,253,0.28);border-radius:8px;padding:22px 26px;margin:16px 0 34px;box-shadow:0 1px 0 rgba(11,183,253,0.08),0 2px 8px rgba(0,0,0,0.03);\">\n<ul style=\"margin:0;padding-left:20px;line-height:1.75;color:#1a2733;\">\n<li style=\"margin-bottom:10px;\"><strong>Pour de nombreux r\u00e9pondants, le contr\u00f4le ne s\u2019\u00e9tend pas au mod\u00e8le d\u2019IA.<\/strong> Dans l\u2019enqu\u00eate d\u2019Accenture, les exigences de souverainet\u00e9 ou de localisation s\u2019appliquaient aux donn\u00e9es pour 60 % des r\u00e9pondants, \u00e0 l\u2019infrastructure pour 46 % et aux mod\u00e8les pour 22 %.<\/li>\n<li style=\"margin-bottom:10px;\"><strong>Changer de mod\u00e8le n\u00e9cessite une proc\u00e9dure technique \u00e9prouv\u00e9e.<\/strong> Les interfaces, les formats de donn\u00e9es et les crit\u00e8res d\u2019\u00e9valuation contribuent \u00e0 d\u00e9terminer l\u2019effort n\u00e9cessaire pour effectuer la transition.<\/li>\n<li><strong>Les contrats cloud et les entreprises financi\u00e8res sont soumis \u00e0 des obligations pr\u00e9cises en mati\u00e8re de changement de fournisseur.<\/strong> Le Data Act limite les frais de changement et DORA impose des plans de sortie document\u00e9s pour certains services TIC.<\/li>\n<\/ul>\n<\/div>\n<h2>La faille de contr\u00f4le entre les donn\u00e9es et le mod\u00e8le<\/h2>\n<p>Une entreprise peut traiter ses donn\u00e9es dans une r\u00e9gion situ\u00e9e dans l\u2019UE tout en d\u00e9pendant d\u2019un seul fournisseur de mod\u00e8les. Les versions disponibles, l\u2019interface et la possibilit\u00e9 de rediriger les requ\u00eates vers un autre mod\u00e8le deviennent alors d\u00e9terminantes. Le seul lieu de stockage ne r\u00e9pond pas \u00e0 ces questions.<\/p>\n<p>L\u2019<a href=\"https:\/\/www.accenture.com\/content\/dam\/accenture\/final\/accenture-com\/document-4\/Sovereign-AI-Report.pdf\" style=\"color:#0879aa;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;\">enqu\u00eate d\u2019Accenture aupr\u00e8s de 1 928 dirigeants<\/a>, men\u00e9e en juillet et ao\u00fbt 2025, montre \u00e0 quels niveaux les organisations interrog\u00e9es appliquent des exigences de souverainet\u00e9 ou de localisation : 60 % citent les donn\u00e9es, 46 % l\u2019infrastructure et 22 % les mod\u00e8les d\u2019IA. Ces chiffres montrent l\u2019\u00e9tendue de ces exigences dans l\u2019\u00e9chantillon. \u00c0 eux seuls, ils ne prouvent ni la s\u00e9curit\u00e9 r\u00e9elle des syst\u00e8mes utilis\u00e9s ni la possibilit\u00e9 d\u2019en changer.<\/p>\n<p>Pour les applications d\u2019IA ayant acc\u00e8s \u00e0 des outils et \u00e0 des processus m\u00e9tier, l\u2019examen devrait donc aussi porter sur le mod\u00e8le et son int\u00e9gration : qui d\u00e9termine la version du mod\u00e8le ? Quelles donn\u00e9es sont transmises au service ? Quelles fonctions d\u00e9pendent d\u2019une interface propre au fournisseur ?<\/p>\n<h2>La transition commence dans l\u2019architecture<\/h2>\n<p>Une couche d\u2019interface d\u00e9di\u00e9e peut d\u00e9coupler les applications des API de mod\u00e8les individuels. Les mod\u00e8les de prompts, les autorisations des outils et les journaux peuvent ainsi \u00eatre g\u00e9r\u00e9s de mani\u00e8re cibl\u00e9e. M\u00eame dans ce cas, un changement reste un projet : les mod\u00e8les diff\u00e8rent par leurs formats de sortie et leur comportement. Un mod\u00e8le de remplacement doit \u00eatre test\u00e9 sur des t\u00e2ches repr\u00e9sentatives afin d\u2019\u00e9valuer sa qualit\u00e9 et ses comportements erron\u00e9s.<\/p>\n<p>Le plan de sortie doit donc s\u2019appuyer sur une d\u00e9monstration pratique. Celle-ci comprend un mod\u00e8le ou une m\u00e9thode d\u2019exploitation de remplacement, des d\u00e9pendances document\u00e9es et un test couvrant le transfert des donn\u00e9es, les autorisations et la poursuite du processus m\u00e9tier. Pour les mod\u00e8les exploit\u00e9s localement, il faut en outre v\u00e9rifier leur provenance, les conditions de licence et le contr\u00f4le de l\u2019ensemble de l\u2019environnement d\u2019ex\u00e9cution.<\/p>\n<h2>Les contrats cloud doivent pr\u00e9voir la transition<\/h2>\n<p>Le <a href=\"https:\/\/eur-lex.europa.eu\/eli\/reg\/2023\/2854\/oj\/eng\" style=\"color:#0879aa;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;\">Data Act<\/a> fixe des r\u00e8gles de changement de fournisseur pour les services de traitement de donn\u00e9es concern\u00e9s. Le contrat doit notamment pr\u00e9voir un d\u00e9lai de pr\u00e9avis pour le d\u00e9but du processus de changement, qui ne peut d\u00e9passer deux mois. En principe, le contrat prend fin une fois le changement men\u00e9 \u00e0 bien. L\u2019examen du contrat doit aussi porter sur les donn\u00e9es et les actifs num\u00e9riques qui peuvent \u00eatre export\u00e9s.<\/p>\n<p>\u00c0 partir du 12 janvier 2027, les fournisseurs ne pourront plus facturer de frais de changement. D\u2019ici l\u00e0, le r\u00e8glement limite ces frais aux co\u00fbts pertinents pendant la p\u00e9riode transitoire. Cela ne supprime pas automatiquement tous les efforts \u00e0 la charge du client : une entreprise devrait notamment pr\u00e9voir ses propres adaptations et les tests du syst\u00e8me cible.<\/p>\n<h2>Les entreprises financi\u00e8res ont besoin d\u2019un plan de sortie<\/h2>\n<p>Pour les entreprises financi\u00e8res, <a href=\"https:\/\/eur-lex.europa.eu\/eli\/reg\/2022\/2554\/oj\" style=\"color:#0879aa;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;\">DORA<\/a> impose une gestion du risque li\u00e9 aux prestataires tiers de services TIC. Lorsqu\u2019un service TIC soutient des fonctions critiques ou importantes, l\u2019entreprise financi\u00e8re doit disposer d\u2019une strat\u00e9gie de sortie. Les plans de sortie doivent \u00eatre document\u00e9s de mani\u00e8re exhaustive, test\u00e9s de fa\u00e7on appropri\u00e9e et r\u00e9examin\u00e9s r\u00e9guli\u00e8rement.<\/p>\n<p>La question de savoir si un service d\u2019IA soutient une telle fonction d\u00e9pend de son utilisation concr\u00e8te. L\u2019examen isol\u00e9 de la localisation du cloud ne suffit pas \u00e0 trancher. Les entreprises devraient \u00e9galement identifier les processus qui d\u00e9pendent du mod\u00e8le et de ses autres prestataires.<\/p>\n<p>Par ailleurs, les obligations de transparence de l\u2019AI Act s\u2019appliquent \u00e0 certains syst\u00e8mes d\u2019IA depuis ao\u00fbt 2026. La <a href=\"https:\/\/digital-strategy.ec.europa.eu\/en\/policies\/regulatory-framework-ai\" style=\"color:#0879aa;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;\">Commission europ\u00e9enne<\/a> indique la date du 2 d\u00e9cembre 2027 pour les exigences applicables \u00e0 certains syst\u00e8mes d\u2019IA autonomes \u00e0 haut risque. Les obligations applicables d\u00e9pendent du syst\u00e8me, de son usage pr\u00e9vu et du r\u00f4le de l\u2019entreprise.<\/p>\n<h2 style=\"padding-top:64px;margin-bottom:20px;\">Questions fr\u00e9quentes<\/h2>\n<details>\n<summary><strong>Pourquoi une r\u00e9gion situ\u00e9e dans l\u2019UE ne suffit-elle pas pour changer de mod\u00e8le ?<\/strong><\/summary>\n<p style=\"margin:8px 0 4px 24px;color:#555;line-height:1.6;\">Le lieu d\u2019exploitation ne renseigne pas sur le degr\u00e9 de d\u00e9pendance d\u2019une application \u00e0 l\u2019API d\u2019un mod\u00e8le. Pour changer de mod\u00e8le, les entreprises doivent aussi examiner les interfaces, les formats de donn\u00e9es, les autorisations et la qualit\u00e9 du mod\u00e8le de remplacement.<\/p>\n<\/details>\n<details>\n<summary><strong>Que change le Data Act concernant les frais de changement ?<\/strong><\/summary>\n<p style=\"margin:8px 0 4px 24px;color:#555;line-height:1.6;\">Pour les services de traitement de donn\u00e9es concern\u00e9s, les fournisseurs ne pourront plus facturer de frais de changement \u00e0 partir du 12 janvier 2027. La transition technique et les tests r\u00e9alis\u00e9s par le client peuvent n\u00e9anmoins lui demander des efforts.<\/p>\n<\/details>\n<details>\n<summary><strong>Quand DORA exige-t-il un plan de sortie ?<\/strong><\/summary>\n<p style=\"margin:8px 0 4px 24px;color:#555;line-height:1.6;\">Les entreprises financi\u00e8res doivent disposer de strat\u00e9gies de sortie pour les services TIC qui soutiennent des fonctions critiques ou importantes. Les plans doivent \u00eatre document\u00e9s, test\u00e9s de fa\u00e7on appropri\u00e9e et r\u00e9examin\u00e9s r\u00e9guli\u00e8rement.<\/p>\n<\/details>\n<h2>S\u00e9lection de la r\u00e9daction<\/h2>\n<ul style=\"list-style:none;margin:0 0 8px;padding:0;\">\n<li style=\"padding:10px 0;border-bottom:1px solid #eee;\"><a href=\"https:\/\/www.cloudmagazin.com\/fr\/2026\/08\/03\/google-sovereign-cloud-allemagne-thales-operateur-2026\/\" style=\"color:#1a1a1a;text-decoration:none;\">Une filiale de Thales exploite le cloud souverain de Google<\/a><\/li>\n<li style=\"padding:10px 0;border-bottom:1px solid #eee;\"><a href=\"https:\/\/www.cloudmagazin.com\/fr\/2026\/10\/04\/kolibri-un-modele-dintelligence-artificielle-allemand-concu-pour-les-centres-de\/\" style=\"color:#1a1a1a;text-decoration:none;\">Kolibri : un mod\u00e8le d\u2019IA allemand pour votre centre de donn\u00e9es<\/a><\/li>\n<li style=\"padding:10px 0;\"><a href=\"https:\/\/www.cloudmagazin.com\/fr\/2026\/08\/04\/telechargeable-ne-signifie-pas-exploitable\/\" style=\"color:#1a1a1a;text-decoration:none;\">T\u00e9l\u00e9chargeable ne signifie pas exploitable<\/a><\/li>\n<\/ul>\n<h2>Plus du r\u00e9seau MBF Media<\/h2>\n<ul style=\"list-style:none;margin:0 0 8px;padding:0;\">\n<li style=\"padding:10px 0;border-bottom:1px solid #eee;\"><a href=\"https:\/\/www.digital-chiefs.de\/fr\/loi-europeenne-sur-les-donnees-obligations-de-bascule-pour-les-portefeuilles\/\" style=\"color:#1a1a1a;text-decoration:none;\">Data Act europ\u00e9en : obligations de changement pour les portefeuilles cloud<\/a><\/li>\n<li style=\"padding:10px 0;border-bottom:1px solid #eee;\"><a href=\"https:\/\/mybusinessfuture.com\/art-50-ki-vo-was-betreiber-ab-august-2026-tun\/\" style=\"color:#1a1a1a;text-decoration:none;\">Article 50 de l\u2019AI Act : les obligations des op\u00e9rateurs d\u00e8s ao\u00fbt 2026<\/a><\/li>\n<li style=\"padding:10px 0;\"><a href=\"https:\/\/www.securitytoday.de\/fr\/2026\/08\/02\/bod-26-04-comment-prioriser-correctement-le-kev-et-lepss\/\" style=\"color:#1a1a1a;text-decoration:none;\">KEV selon BOD 26-04 &#8211; EPSS classe le reste<\/a><\/li>\n<\/ul>\n<p style=\"text-align:right;color:#868e96;font-size:0.85em;margin-top:48px;\"><em>Source de l\u2019image : g\u00e9n\u00e9r\u00e9e par IA (novembre 2026)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"Contr\u00f4ler les donn\u00e9es ne suffit pas \u00e0 lever la d\u00e9pendance au mod\u00e8le d\u2019IA. Architecture et contrats doivent pr\u00e9voir la possibilit\u00e9 d\u2019en changer.","protected":false},"author":31,"featured_media":54978,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_meta-robots-nofollow":"","_yoast_wpseo_meta-robots-adv":"","_yoast_wpseo_canonical":"","_yoast_wpseo_opengraph-title":"","_yoast_wpseo_opengraph-description":"","_yoast_wpseo_opengraph-image":"","_yoast_wpseo_opengraph-image-id":0,"_yoast_wpseo_twitter-title":"","_yoast_wpseo_twitter-description":"","_yoast_wpseo_twitter-image":"","_yoast_wpseo_twitter-image-id":0,"pre_headline":"","bildquelle":"","teasertext":"","language":"de","_evm_slot_owner":"","_evm_translation_lang":"","featured_post":0,"featured_post_sortierung":0,"_wp_old_slug":[],"footnotes":""},"categories":[936,12],"tags":[],"industry":[],"class_list":["post-51354","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-avis-experts","category-expertenmeinungen"],"evm_reading_time_minutes":6,"wpml_language":"fr","wpml_translation_of":51147,"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Donn\u00e9es souveraines, mod\u00e8le d\u2019IA sous d\u00e9pendance<\/title>\n<meta name=\"description\" content=\"La localisation des donn\u00e9es ne garantit pas la possibilit\u00e9 de changer de mod\u00e8le d\u2019IA. 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