{"id":119,"date":"2026-09-13T20:56:43","date_gmt":"2026-09-13T20:56:43","guid":{"rendered":"https:\/\/neranis.com\/?post_type=nrn_service&#038;p=119"},"modified":"2026-09-13T20:56:43","modified_gmt":"2026-09-13T20:56:43","slug":"implementation-de-la-securite-de-microsoft-365","status":"publish","type":"nrn_service","link":"https:\/\/neranis.com\/fr\/services\/microsoft-365-security-implementation\/","title":{"rendered":"Mise en \u0153uvre de la s\u00e9curit\u00e9 Microsoft 365"},"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\/logiciel-en-tant-que-service-dans-le-nuage\/\">Cloud et SaaS<\/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\">CLD \/ CLD-03<\/p>\n\n\n<h1 class=\"wp-block-heading nrn2-title\">Mise en \u0153uvre de la s\u00e9curit\u00e9 Microsoft 365<\/h1>\n\n\n<p class=\"nrn2-lead wp-block-paragraph\">Renforcer la visibilit\u00e9 de l'identit\u00e9, des donn\u00e9es, de la collaboration et de la s\u00e9curit\u00e9 de mani\u00e8re coh\u00e9rente dans un environnement Microsoft 365. Le projet part des licences et de l'utilisation r\u00e9elles plut\u00f4t que de supposer que les fonctionnalit\u00e9s sont disponibles.<\/p>\n\n<\/div>\n\n\n<figure class=\"wp-block-image size-full nrn2-context-image nrn2-visual-asset-service-family-cld\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"500\" src=\"https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-cld.webp\" alt=\"\" class=\"wp-image-249\" srcset=\"https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-cld.webp 1600w, https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-cld-300x94.webp 300w, https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-cld-1024x320.webp 1024w, https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-cld-768x240.webp 768w, https:\/\/neranis.com\/wp-content\/uploads\/2026\/09\/service-family-cld-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\">Utilisation rapide de solutions tierces, projet de fusion, partage excessif avec des tiers, d\u00e9sir d\u2019utiliser des protections d\u00e9j\u00e0 autoris\u00e9es ou pr\u00e9paration d\u2019un assistant intelligent connect\u00e9 aux documents.<\/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\/logiciel-en-tant-que-service-dans-le-nuage\/\">Cloud et SaaS<\/a><\/p>\n\n\n<p class=\"wp-block-paragraph\"><strong>Engagement<\/strong><br>Mise en \u0153uvre et r\u00e9current<\/p>\n\n\n<p class=\"wp-block-paragraph\"><strong>R\u00e9f\u00e9rence<\/strong><br>CLD-03<\/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>R\u00f4les administratifs<\/li>\n\n\n<li>authentification<\/li>\n\n\n<li>Dispositifs et acc\u00e8s en fonction de la licence<\/li>\n\n\n<li>SharePoint\/OneDrive\/Teams<\/li>\n\n\n<li>partager<\/li>\n\n\n<li>classification\/DLP<\/li>\n\n\n<li>consentement \u00e0 l\u2019application<\/li>\n\n\n<li>briques<\/li>\n\n\n<li>r\u00e9cup\u00e9ration administrative<\/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>\u00c9valuation initiale<\/li>\n\n\n<li>matrice de licences pour la mise sur le march\u00e9<\/li>\n\n\n<li>plan de durcissement<\/li>\n\n\n<li>configurations<\/li>\n\n\n<li>tests bas\u00e9s sur des r\u00f4les<\/li>\n\n\n<li>registre des exceptions<\/li>\n\n\n<li>processus d\u2019exploitation<\/li>\n\n\n<li>Formation des administrateurs<\/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 contr\u00f4les convenus sont test\u00e9s ; les comptes d\u2019urgence sont prot\u00e9g\u00e9s ; le partage est v\u00e9rifi\u00e9 ; les autorisations et les journaux sont align\u00e9s ; les fonctionnalit\u00e9s indisponibles sont identifi\u00e9es plut\u00f4t que de pr\u00e9tendre qu\u2019elles sont d\u00e9j\u00e0 couvertes.<\/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\">Inventorier les comptes et les usages ; clarifier les responsabilit\u00e9s ; concevoir des politiques ; piloter ; tester et d\u00e9ployer ; organiser les d\u00e9rives, les exceptions et les op\u00e9rations.<\/p>\n\n\n<h3 class=\"wp-block-heading\">Pr\u00e9requis et responsabilit\u00e9s<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Client : acc\u00e8s des locataires\/du compte, facturation, propri\u00e9taires des donn\u00e9es, administrateurs et contraintes de r\u00e9sidence. Fournisseur : architecture et configuration dans le cadre de la responsabilit\u00e9 partag\u00e9e.<\/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\">Nuages, comptes, r\u00e9gions, ressources, locataires, clusters, connecteurs et maturit\u00e9 de l'automatisation. La consommation, les transferts, le stockage et les licences sont distincts du service.<\/p>\n\n\n<h3 class=\"wp-block-heading\">Questions \u00e0 clarifier<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Quelles licences et quels groupes d\u2019utilisateurs sont impliqu\u00e9s ? Quel partage externe est essentiel ? Qui administre le compte client et contr\u00f4le les alertes ?<\/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\">Un score du tableau de bord ne repr\u00e9sente pas une garantie de conformit\u00e9 ou une s\u00e9curit\u00e9 absolue. Les fonctionnalit\u00e9s varient selon la licence, le produit et la configuration ; les services de sauvegarde ind\u00e9pendants et les services de SOC n\u00e9cessitent un p\u00e9rim\u00e8tre pr\u00e9cis.<\/p>\n\n\n<p class=\"wp-block-paragraph\">Les fonctionnalit\u00e9s varient selon l'\u00e9dition, la r\u00e9gion et le statut de disponibilit\u00e9. Un score de posture n'est ni une certification ni une garantie de d\u00e9tection compl\u00e8te.<\/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\">Une entreprise poss\u00e8de des licences avanc\u00e9es mais utilise peu de contr\u00f4les. Projet : s\u00e9lectionner les contr\u00f4les pertinents et les d\u00e9ployer par groupe d\u2019utilisateurs. Objectif : une protection utilisable sans activer brusquement toutes les restrictions.<\/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\">Un groupe pr\u00e9pare un assistant de document. Projet : nettoyer les autorisations SharePoint et les invit\u00e9s avant la connexion. Objectif : un p\u00e9rim\u00e8tre de document contr\u00f4l\u00e9 ; les espaces de travail excessivement ouverts sont fix\u00e9s ou exclus du programme pilote d\u2019IA.<\/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\">Exemples : Microsoft Entra, Defender et Purview selon la licence ; int\u00e9gration avec des outils tiers apr\u00e8s validation.<\/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\">CLD-02<\/p>\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/neranis.com\/fr\/services\/gestion-de-la-posture-de-securite-dans-le-cloud\/\">Gestion de la posture de s\u00e9curit\u00e9 dans le cloud \u2014 CSPM<\/a><\/h3>\n\n\n<p class=\"nrn2-card-desc wp-block-paragraph\">D\u00e9tectez les configurations cloud expos\u00e9es ou les \u00e9carts par rapport aux politiques s\u00e9lectionn\u00e9es et organisez la rem\u00e9diation. Le CSPM suit la posture technique ; il ne remplace pas la surveillance compl\u00e8te des \u00e9v\u00e9nements ou l'\u00e9valuation des applications.<\/p>\n\n\n<p class=\"nrn2-text-link wp-block-paragraph\"><a href=\"https:\/\/neranis.com\/fr\/services\/gestion-de-la-posture-de-securite-dans-le-cloud\/\">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\">SOC-03<\/p>\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/neranis.com\/fr\/services\/collecte-de-journaux-et-deploiement-du-siem\/\">Collecte des journaux et d\u00e9ploiement du SIEM<\/a><\/h3>\n\n\n<p class=\"nrn2-card-desc wp-block-paragraph\">Centraliser les \u00e9v\u00e9nements de s\u00e9curit\u00e9 utiles et les rendre exploitables pour la recherche, les alertes et les investigations. Le projet aborde la qualit\u00e9, les horodatages, la r\u00e9tention et le co\u00fbt tout autant que l'installation de la plateforme.<\/p>\n\n\n<p class=\"nrn2-text-link wp-block-paragraph\"><a href=\"https:\/\/neranis.com\/fr\/services\/collecte-de-journaux-et-deploiement-du-siem\/\">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\">PEN-07<\/p>\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/neranis.com\/fr\/services\/cloud-et-test-de-penetration-iam\/\">Tests d'intrusion du cloud et de la gestion des identit\u00e9s et des acc\u00e8s (IAM)<\/a><\/h3>\n\n\n<p class=\"nrn2-card-desc wp-block-paragraph\">Tests contr\u00f4l\u00e9s de sc\u00e9narios d'abus dans un environnement cloud, au-del\u00e0 de la simple r\u00e9vision de configuration.<\/p>\n\n\n<p class=\"nrn2-text-link wp-block-paragraph\"><a href=\"https:\/\/neranis.com\/fr\/services\/cloud-et-test-de-penetration-iam\/\">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>Renforcer la visibilit\u00e9 de l'identit\u00e9, des donn\u00e9es, de la collaboration et de la s\u00e9curit\u00e9 de mani\u00e8re coh\u00e9rente dans un environnement Microsoft 365. Le projet part des licences et de l'utilisation r\u00e9elles plut\u00f4t que de supposer que les fonctionnalit\u00e9s sont disponibles.<\/p>","protected":false},"featured_media":0,"template":"single-nrn_service","meta":{"footnotes":""},"nrn_family":[13],"class_list":["post-119","nrn_service","type-nrn_service","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/nrn_service\/119","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\/119\/revisions"}],"predecessor-version":[{"id":514,"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/nrn_service\/119\/revisions\/514"}],"wp:attachment":[{"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/media?parent=119"}],"wp:term":[{"taxonomy":"nrn_family","embeddable":true,"href":"https:\/\/neranis.com\/fr\/wp-json\/wp\/v2\/nrn_family?post=119"}],"curies":[{"name":"Bien jou\u00e9","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}