{"id":123,"date":"2026-09-13T20:56:43","date_gmt":"2026-09-13T20:56:43","guid":{"rendered":"https:\/\/neranis.com\/?post_type=nrn_service&#038;p=123"},"modified":"2026-09-13T20:56:43","modified_gmt":"2026-09-13T20:56:43","slug":"modelisation-des-menaces-et-conception-securisee","status":"publish","type":"nrn_service","link":"https:\/\/neranis.com\/fr\/services\/threat-modelling-and-secure-design\/","title":{"rendered":"Mod\u00e9lisation des menaces et conception s\u00e9curis\u00e9e"},"content":{"rendered":"<section class=\"wp-block-group nrn2-section nrn2-page-hero is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-breadcrumb wp-block-paragraph\"><a href=\"https:\/\/neranis.com\/fr\/\">Accueil<\/a> <span aria-hidden=\"true\">\/<\/span> <a href=\"https:\/\/neranis.com\/fr\/expertise\/\">Expertise<\/a> \/ <a href=\"https:\/\/neranis.com\/fr\/expertise\/securite-des-applications\/\">S\u00e9curit\u00e9 des applications<\/a><\/p>\n\n\n<div class=\"wp-block-group nrn2-service-top nrn2-hero-layout-r3 is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-hero-split-copy is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"nrn2-kicker wp-block-paragraph\">APP \/ APP-01<\/p>\n\n\n<h1 class=\"wp-block-heading nrn2-title\">Mod\u00e9lisation des menaces et conception s\u00e9curis\u00e9e<\/h1>\n\n\n<p class=\"nrn2-lead wp-block-paragraph\">Examiner une application avant ou pendant sa conception pour identifier les actifs sensibles, les limites de confiance et les sc\u00e9narios d'abus. L'objectif est de s\u00e9lectionner les contr\u00f4les appropri\u00e9s avant que les erreurs architecturales ne deviennent co\u00fbteuses \u00e0 corriger.<\/p>\n\n<\/div>\n\n\n<figure class=\"wp-block-image size-full nrn2-context-image nrn2-visual-asset-service-family-app\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"500\" src=\"https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-app.webp\" alt=\"\" class=\"wp-image-250\" srcset=\"https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-app.webp 1600w, https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-app-300x94.webp 300w, https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-app-1024x320.webp 1024w, https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-app-768x240.webp 768w, https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-app-1536x480.webp 1536w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n<\/div>\n<\/div>\n\n<\/section>\n\n\n<section class=\"wp-block-group nrn2-section is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-service-top is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-service-intro is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-kicker wp-block-paragraph\">QUAND C'EST UTILE<\/p>\n\n\n<h2 class=\"wp-block-heading nrn2-h2\">Une r\u00e9ponse cibl\u00e9e<br>\u00e0 un besoin d\u00e9fini.<\/h2>\n\n\n<p class=\"nrn2-body-lg wp-block-paragraph\">Un nouveau portail, une architecture multitenant, un changement de syst\u00e8me d\u2019identit\u00e9, une int\u00e9gration de paiement ou de donn\u00e9es sensibles, ou un projet d\u2019IA impliquant des syst\u00e8mes informatiques.<\/p>\n\n\n<div class=\"wp-block-buttons nrn2-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/neranis.com\/fr\/contact\/\">Discutez de ce service<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-facts is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-kicker wp-block-paragraph\">EN UN COUP D'\u0152IL<\/p>\n\n\n<p class=\"wp-block-paragraph\"><strong>Famille<\/strong><br><a href=\"https:\/\/neranis.com\/fr\/expertise\/securite-des-applications\/\">S\u00e9curit\u00e9 des applications<\/a><\/p>\n\n\n<p class=\"wp-block-paragraph\"><strong>Engagement<\/strong><br>Conseil et mise en \u0153uvre<\/p>\n\n\n<p class=\"wp-block-paragraph\"><strong>R\u00e9f\u00e9rence<\/strong><br>APP-01<\/p>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/section>\n\n\n<section class=\"wp-block-group nrn2-section nrn2-canvas is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-section-heading is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-kicker wp-block-paragraph\">PORT\u00c9E ET R\u00c9SULTATS<\/p>\n\n\n<h2 class=\"wp-block-heading nrn2-h2\">Ce que couvre la mission.<\/h2>\n\n<\/div>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-delivery-grid is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-delivery-card is-layout-flow wp-block-group-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Port\u00e9e<\/h3>\n\n\n<ul class=\"wp-block-list nrn2-list\">\n<li>Ateliers d'affaires et d'architecture<\/li>\n\n\n<li>flux de donn\u00e9es<\/li>\n\n\n<li>acteurs et privil\u00e8ges<\/li>\n\n\n<li>sc\u00e9narios d'abus<\/li>\n\n\n<li>contr\u00f4les de s\u00e9curit\u00e9<\/li>\n\n\n<li>Des exigences testables<\/li>\n\n\n<li>Risques r\u00e9siduels et propri\u00e9t\u00e9<\/li>\n\n<\/ul>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-delivery-card is-layout-flow wp-block-group-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Livrables<\/h3>\n\n\n<ul class=\"wp-block-list nrn2-list\">\n<li>Diagrammes annot\u00e9s<\/li>\n\n\n<li>mod\u00e8le de menace<\/li>\n\n\n<li>exigences de s\u00e9curit\u00e9 prioritaires<\/li>\n\n\n<li>D\u00e9cisions architecturales<\/li>\n\n\n<li>tests pr\u00e9vus<\/li>\n\n\n<li>Risques accept\u00e9s ou n\u00e9cessitant un traitement<\/li>\n\n<\/ul>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-delivery-card nrn2-evidence is-layout-flow wp-block-group-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Preuve de r\u00e9ception<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Les principaux sc\u00e9narios sont examin\u00e9s en collaboration avec les \u00e9quipes commerciales ; les exigences sont d\u00e9finies et testables ; les d\u00e9cisions sont document\u00e9es ; des examens sont planifi\u00e9s pour les changements majeurs.<\/p>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/section>\n\n\n<section class=\"wp-block-group nrn2-section is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-section-heading is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-kicker wp-block-paragraph\">LIVRAISON<\/p>\n\n\n<h2 class=\"wp-block-heading nrn2-h2\">Comment le travail est structur\u00e9.<\/h2>\n\n<\/div>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-two-col is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-prose is-layout-flow wp-block-group-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Approche<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Comprendre l\u2019architecture ; s\u00e9lectionner les risques et les exigences ; int\u00e9grer ou v\u00e9rifier les contr\u00f4les ; tester ; les transmettre aux \u00e9quipes et planifier des contr\u00f4les de r\u00e9gression.<\/p>\n\n\n<h3 class=\"wp-block-heading\">Pr\u00e9requis et responsabilit\u00e9s<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Client : code, architecture, d\u00e9veloppeurs, environnement de test et acc\u00e8s au pipeline. Fournisseur : expertise et contr\u00f4les ; correction du code uniquement lorsqu'elle est incluse.<\/p>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-prose is-layout-flow wp-block-group-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Facteurs de port\u00e9e<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Applications, langages, r\u00e9f\u00e9rentiels, d\u00e9pendances, r\u00f4les, pipelines, volume et profondeur. S\u00e9parer les licences d'outils, le d\u00e9veloppement de rem\u00e9diation et la maintenance.<\/p>\n\n\n<h3 class=\"wp-block-heading\">Questions \u00e0 clarifier<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Quelles actions causeraient le plus de dommages ? O\u00f9 sont franchies les limites de la confiance ? Quelles d\u00e9cisions architecturales peuvent encore \u00eatre modifi\u00e9es ?<\/p>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/section>\n\n\n<section class=\"wp-block-group nrn2-section nrn2-compact is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-boundaries is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-kicker wp-block-paragraph\">LIMITES IMPORTANTES<\/p>\n\n\n<p class=\"nrn2-body-lg wp-block-paragraph\">La mod\u00e9lisation des menaces n\u2019est ni le test de p\u00e9n\u00e9tration ni la preuve de l\u2019absence de failles. Sa valeur d\u00e9pend de la qualit\u00e9 de l\u2019information et des mises \u00e0 jour apr\u00e8s les modifications.<\/p>\n\n\n<p class=\"wp-block-paragraph\">Les contr\u00f4les s'appliquent aux versions et au p\u00e9rim\u00e8tre convenus. Aucun scanner, SBOM ou framework ne garantit \u00e0 lui seul la s\u00e9curit\u00e9 du logiciel livr\u00e9.<\/p>\n\n<\/div>\n\n<\/div>\n\n<\/section>\n\n\n<section class=\"wp-block-group nrn2-section is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-section-heading is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-kicker wp-block-paragraph\">EN PRATIQUE<\/p>\n\n\n<h2 class=\"wp-block-heading nrn2-h2\">Situations illustratives.<\/h2>\n\n<\/div>\n\n\n<p class=\"nrn2-section-lead wp-block-paragraph\">Ces exemples d\u00e9crivent des engagements possibles et des r\u00e9sultats cibles. Il ne s'agit pas de r\u00e9f\u00e9rences clients ni de r\u00e9sultats obtenus.<\/p>\n\n<\/div>\n\n\n<details class=\"wp-block-details nrn2-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Sc\u00e9nario 01<\/summary>\n<p class=\"wp-block-paragraph\">Un fournisseur pr\u00e9pare une application multirent. Projet : mod\u00e8le d\u2019acc\u00e8s et de partage des donn\u00e9es des clients avant le d\u00e9veloppement. Objectif : les exigences d\u2019isolation sont incluses dans le backlog et les tests plut\u00f4t que d\u2019\u00eatre ajout\u00e9es apr\u00e8s le lancement.<\/p>\n\n<\/details>\n\n\n<details class=\"wp-block-details nrn2-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Sc\u00e9nario 02<\/summary>\n<p class=\"wp-block-paragraph\">Une \u00e9quipe ajoute un agent IA capable de modifier les donn\u00e9es. Projet : \u00e9valuer les outils et les d\u00e9cisions sensibles. Objectif : limites d\u2019action et approbations humaines pr\u00e9vues \u00e0 l\u2019avance ; certaines outils ne seront pas inclus dans le pilotage.<\/p>\n\n<\/details>\n\n\n<details class=\"wp-block-details nrn2-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Contexte technologique et de r\u00e9f\u00e9rence<\/summary>\n<p class=\"wp-block-paragraph\">R\u00e9f\u00e9rences : pratiques d\u2019OWASP et SSDF de NIST ; diagrammes et exigences ind\u00e9pendants de tout outil obligatoire.<\/p>\n\n\n<p class=\"wp-block-paragraph\">L'ensemble final des technologies est convenu lors du cadrage, sur la base de l'interop\u00e9rabilit\u00e9, des licences, des droits d'acc\u00e8s et des exigences op\u00e9rationnelles.<\/p>\n\n<\/details>\n\n<\/div>\n\n<\/section>\n\n\n<section class=\"wp-block-group nrn2-section is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-section-heading is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-kicker wp-block-paragraph\">SERVICES CONNECT\u00c9S<\/p>\n\n\n<h2 class=\"wp-block-heading nrn2-h2\">Construisez l'\u00e9tape suivante.<\/h2>\n\n<\/div>\n\n\n<p class=\"nrn2-section-lead wp-block-paragraph\">Ces services peuvent compl\u00e9ter la mission. Ils ne sont pas inclus automatiquement.<\/p>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-related-grid is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-service-card is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-ref wp-block-paragraph\">PEN-03<\/p>\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/neranis.com\/fr\/services\/web-application-penetration-testing\/\">Test d'intrusion d'applications web<\/a><\/h3>\n\n\n<p class=\"nrn2-card-desc wp-block-paragraph\">Tester les applications bas\u00e9es sur navigateur pour d\u00e9tecter les failles, en particulier au niveau de l'authentification, de l'autorisation et des flux de travail m\u00e9tier.<\/p>\n\n\n<p class=\"nrn2-text-link wp-block-paragraph\"><a href=\"https:\/\/neranis.com\/fr\/services\/web-application-penetration-testing\/\">D\u00e9couvrir ce service <span aria-hidden=\"true\">\u2197<\/span><\/a><\/p>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-service-card is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-ref wp-block-paragraph\">APP-03<\/p>\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/neranis.com\/fr\/services\/ci-cd-integration-de-la-securite-et-du-devsecops\/\">S\u00e9curit\u00e9 CI\/CD et int\u00e9gration DevSecOps<\/a><\/h3>\n\n\n<p class=\"nrn2-card-desc wp-block-paragraph\">Int\u00e9grer des contr\u00f4les de s\u00e9curit\u00e9 dans le d\u00e9veloppement et le d\u00e9ploiement avec des r\u00e8gles de blocage et d'exception compr\u00e9hensibles. Le projet prot\u00e8ge \u00e9galement la cha\u00eene de livraison des logiciels elle-m\u00eame : comptes, ex\u00e9cuteurs, secrets et autorisations.<\/p>\n\n\n<p class=\"nrn2-text-link wp-block-paragraph\"><a href=\"https:\/\/neranis.com\/fr\/services\/ci-cd-integration-de-la-securite-et-du-devsecops\/\">D\u00e9couvrir ce service <span aria-hidden=\"true\">\u2197<\/span><\/a><\/p>\n\n<\/div>\n\n\n<div class=\"wp-block-group nrn2-service-card is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-ref wp-block-paragraph\">REM-06<\/p>\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/neranis.com\/fr\/services\/reexamen-des-resultats-et-validation-de-la-fermeture\/\">Tests de rem\u00e9diation et validation de la cl\u00f4ture<\/a><\/h3>\n\n\n<p class=\"nrn2-card-desc wp-block-paragraph\">V\u00e9rification cibl\u00e9e confirmant que les vuln\u00e9rabilit\u00e9s ou lacunes identifi\u00e9es ont \u00e9t\u00e9 corrig\u00e9es, tout en maintenanat un lien clair avec la constatation d'origine.<\/p>\n\n\n<p class=\"nrn2-text-link wp-block-paragraph\"><a href=\"https:\/\/neranis.com\/fr\/services\/reexamen-des-resultats-et-validation-de-la-fermeture\/\">D\u00e9couvrir ce service <span aria-hidden=\"true\">\u2197<\/span><\/a><\/p>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/section>\n\n\n<section class=\"wp-block-group nrn2-section is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group nrn2-cta is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-kicker wp-block-paragraph\">Commencer une conversation<\/p>\n\n\n<h2 class=\"wp-block-heading nrn2-h2\">Clarifiez la port\u00e9e.<\/h2>\n\n<\/div>\n\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"nrn2-body-lg wp-block-paragraph\">Nous clarifierons l'objectif, les d\u00e9pendances et les responsabilit\u00e9s de ce service avant de proposer la livraison.<\/p>\n\n\n<div class=\"wp-block-buttons nrn2-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/neranis.com\/fr\/contact\/\">Discutez de vos priorit\u00e9s<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/section>","protected":false},"excerpt":{"rendered":"<p>Examiner une application avant ou pendant sa conception pour identifier les actifs sensibles, les limites de confiance et les sc\u00e9narios d'abus. L'objectif est de s\u00e9lectionner les contr\u00f4les appropri\u00e9s avant que les erreurs architecturales ne deviennent co\u00fbteuses \u00e0 corriger.<\/p>","protected":false},"featured_media":0,"template":"single-nrn_service","meta":{"footnotes":""},"nrn_family":[14],"class_list":["post-123","nrn_service","type-nrn_service","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/nrn_service\/123","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/nrn_service"}],"about":[{"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/types\/nrn_service"}],"version-history":[{"count":2,"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/nrn_service\/123\/revisions"}],"predecessor-version":[{"id":518,"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/nrn_service\/123\/revisions\/518"}],"wp:attachment":[{"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/media?parent=123"}],"wp:term":[{"taxonomy":"nrn_family","embeddable":true,"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/nrn_family?post=123"}],"curies":[{"name":"Bien jou\u00e9","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}