{"id":27957,"date":"2021-03-09T16:04:00","date_gmt":"2021-03-09T15:04:00","guid":{"rendered":"https:\/\/perseus.de\/microsoft-exchange-comblez-rapidement-les-ecarts\/"},"modified":"2026-03-31T07:44:45","modified_gmt":"2026-03-31T05:44:45","slug":"microsoft-exchange-comblez-rapidement-les-ecarts","status":"publish","type":"post","link":"https:\/\/perseus.de\/fr\/microsoft-exchange-comblez-rapidement-les-ecarts\/","title":{"rendered":"Microsoft Exchange : Comblez rapidement les \u00e9carts !"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"27957\" class=\"elementor elementor-27957 elementor-22874\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-dcf4ec4 e-flex e-con-boxed e-con e-parent\" data-id=\"dcf4ec4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e1db58c elementor-widget elementor-widget-image\" data-id=\"e1db58c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"200\" src=\"https:\/\/perseus.de\/wp-content\/uploads\/2025\/04\/Gefahrenwarnung-Headerbild-Website-2025-1024x256.png\" class=\"attachment-large size-large wp-image-27802\" alt=\"\" srcset=\"https:\/\/perseus.de\/wp-content\/uploads\/2025\/04\/Gefahrenwarnung-Headerbild-Website-2025-1024x256.png 1024w, https:\/\/perseus.de\/wp-content\/uploads\/2025\/04\/Gefahrenwarnung-Headerbild-Website-2025-300x75.png 300w, https:\/\/perseus.de\/wp-content\/uploads\/2025\/04\/Gefahrenwarnung-Headerbild-Website-2025-768x192.png 768w, https:\/\/perseus.de\/wp-content\/uploads\/2025\/04\/Gefahrenwarnung-Headerbild-Website-2025.png 1200w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1258a43 e-flex e-con-boxed e-con e-parent\" data-id=\"1258a43\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-2de4e88 e-con-full e-flex e-con e-child\" data-id=\"2de4e88\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4982c80 elementor-widget elementor-widget-text-editor\" data-id=\"4982c80\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h6>09.03.2021<\/h6>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8348bc5 elementor-widget elementor-widget-heading\" data-id=\"8348bc5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Alerte de danger actuelle. Des mesures sont urgentement n\u00e9cessaires. \n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-eb03842 e-con-full e-flex e-con e-child\" data-id=\"eb03842\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-91d0988 elementor-widget elementor-widget-text-editor\" data-id=\"91d0988\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li><strong>Vuln\u00e9rabilit\u00e9s critiques de la plateforme de messagerie Exchange Server de Microsoft<\/strong><\/li><li><strong>Des dizaines de milliers d\u2019entreprises et d\u2019autorit\u00e9s concern\u00e9es, dont quatre agences f\u00e9d\u00e9rales<\/strong><\/li><li><strong>BSI : Installez les mises \u00e0 jour de s\u00e9curit\u00e9 fournies par Microsoft d\u00e8s que possible<\/strong><\/li><\/ul><p> <\/p><p>En raison d\u2019une vuln\u00e9rabilit\u00e9 de s\u00e9curit\u00e9 dans les serveurs Microsoft Exchange, des dizaines de milliers de serveurs de messagerie d\u2019entreprises, d\u2019autorit\u00e9s et d\u2019\u00e9tablissements d\u2019enseignement ont \u00e9t\u00e9 victimes d\u2019attaques de hackers, selon des m\u00e9dias am\u00e9ricains. Quatre des vuln\u00e9rabilit\u00e9s r\u00e9cemment r\u00e9v\u00e9l\u00e9es de Microsoft ont \u00e9t\u00e9 exploit\u00e9es par des pirates. Il pourrait y avoir plus de 250 000 victimes dans le monde, selon le Wall Street Journal.  <\/p><p>Dimanche, l\u2019Autorit\u00e9 bancaire europ\u00e9enne (EBA) a \u00e9galement annonc\u00e9 que des personnes non autoris\u00e9es pouvaient avoir acc\u00e8s \u00e0 des e-mails. Il y a aussi probablement des milliers de victimes en Allemagne. Selon l\u2019Office f\u00e9d\u00e9ral allemand de la s\u00e9curit\u00e9 de l\u2019information (BSI), six agences f\u00e9d\u00e9rales sont \u00e9galement touch\u00e9es par les attaques de hackers contre les programmes de messagerie Microsoft. Dans quatre cas, il y avait un compromis possible. Il est toujours vrai que les mises \u00e0 jour de s\u00e9curit\u00e9 fournies par Microsoft doivent \u00eatre install\u00e9es d\u00e8s que possible.    <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f85a5ad e-flex e-con-boxed e-con e-parent\" data-id=\"f85a5ad\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-fad2031 e-con-full e-flex e-con e-child\" data-id=\"fad2031\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8282d30 elementor-widget elementor-widget-text-editor\" data-id=\"8282d30\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Que s\u2019est-il pass\u00e9 ?<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ee744d2 e-con-full e-flex e-con e-child\" data-id=\"ee744d2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5ea6506 elementor-widget elementor-widget-text-editor\" data-id=\"5ea6506\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Les premi\u00e8res indications de ces vuln\u00e9rabilit\u00e9s avaient d\u00e9j\u00e0 \u00e9t\u00e9 donn\u00e9es le 28 f\u00e9vrier par la soci\u00e9t\u00e9 de s\u00e9curit\u00e9 informatique Volexity, originaire de l\u2019\u00c9tat am\u00e9ricain de Virginie. Les analystes avaient d\u00e9couvert plusieurs attaques men\u00e9es via les pseudo-web shells, c\u2019est-\u00e0-dire des outils d\u2019entr\u00e9e pour les commandes syst\u00e8me. D\u00e8s la fin f\u00e9vrier, les attaquants ont apparemment commenc\u00e9 \u00e0 installer automatiquement des portes d\u00e9rob\u00e9es dans les serveurs Microsoft Exchange vuln\u00e9rables. Des milliers de serveurs par heure ont \u00e9t\u00e9 attaqu\u00e9s de cette mani\u00e8re. Une mise \u00e0 jour de s\u00e9curit\u00e9 concernant ces vuln\u00e9rabilit\u00e9s est publi\u00e9e depuis mercredi dernier. Cependant, l\u2019exp\u00e9rience a montr\u00e9 qu\u2019il faut un certain temps pour que les mises \u00e0 jour de toutes les entreprises concern\u00e9es soient install\u00e9es.     <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f1dfa8e e-flex e-con-boxed e-con e-parent\" data-id=\"f1dfa8e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bf4f09a elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"bf4f09a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a82985c e-flex e-con-boxed e-con e-parent\" data-id=\"a82985c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-482032b e-con-full e-flex e-con e-child\" data-id=\"482032b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b5f6a5c elementor-widget elementor-widget-text-editor\" data-id=\"b5f6a5c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Qui est derri\u00e8re tout \u00e7a ?<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8f5d6ed e-con-full e-flex e-con e-child\" data-id=\"8f5d6ed\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-057f5b5 elementor-widget elementor-widget-text-editor\" data-id=\"057f5b5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Selon un rapport de Microsoft, le groupe informatique chinois HAFNIUM, soutenu par l\u2019\u00c9tat, est \u00e0 l\u2019origine des attaques. On dit que les hackers ont cibl\u00e9 notamment des entreprises am\u00e9ricaines, par exemple issues du secteur industriel, des \u00e9tablissements d\u2019enseignement et des ONG. Apr\u00e8s des attaques r\u00e9ussies, on dit souvent qu\u2019ils s\u2019enracinent de fa\u00e7on permanente dans les syst\u00e8mes et copient des donn\u00e9es.  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ceb0f40 e-flex e-con-boxed e-con e-parent\" data-id=\"ceb0f40\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-71cb03a e-con-full e-flex e-con e-child\" data-id=\"71cb03a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-26d4389 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"26d4389\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-02dd0e9 e-flex e-con-boxed e-con e-parent\" data-id=\"02dd0e9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-16d621d e-con-full e-flex e-con e-child\" data-id=\"16d621d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-89904c7 elementor-widget elementor-widget-text-editor\" data-id=\"89904c7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Que dois-je faire maintenant ?<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fae461d e-con-full e-flex e-con e-child\" data-id=\"fae461d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0f04793 elementor-widget elementor-widget-text-editor\" data-id=\"0f04793\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em><strong>Ex\u00e9cutez les derni\u00e8res mises \u00e0 jour de s\u00e9curit\u00e9 !<\/strong><\/em><\/p><p>Les d\u00e9veloppeurs ont publi\u00e9 des \u00e9ditions s\u00e9curis\u00e9es pour les versions vuln\u00e9rables suivantes des serveurs Exchange :<\/p><ul><li>Exchange Server 2010 (RU 31 pour Service Pack 3)<\/li><li>Exchange Server 2013 (CU 23)<\/li><li>Exchange Server 2016 (CU 19, CU 18)<\/li><li>Exchange Server 2019 (CU 8, CU 7)<\/li><\/ul><p> <\/p><p>Pour permettre aux administrateurs de v\u00e9rifier rapidement leurs versions install\u00e9es d\u2019Exchange Server,<br>Microsoft propose un <a href=\"https:\/\/microsoft.github.io\/CSS-Exchange\/Diagnostics\/HealthChecker\/\">script \u00e0 t\u00e9l\u00e9charger<\/a> . Avec les mises \u00e0 jour de s\u00e9curit\u00e9, les d\u00e9veloppeurs ferment trois autres vuln\u00e9rabilit\u00e9s (CVE-2021-26412, CVE-2021-26858, CVE-2021-27078), mais aucun attaquant ne les viserait pour le moment. <\/p><p>Selon Microsoft, Exchange Online n\u2019est pas affect\u00e9 par ces vuln\u00e9rabilit\u00e9s.<\/p><p><strong>&gt;&gt;  R\u00e9initialisez tous les mots de passe des utilisateurs !<\/strong><\/p><p><strong>&gt;&gt;  Faites un rapport \u00e0 l\u2019autorit\u00e9 responsable de la protection des donn\u00e9es !<\/strong><br>Ainsi, vous pouvez \u00eatre s\u00fbr de ne pas manquer les d\u00e9lais applicables.<\/p><p> <strong>&gt;&gt; <a href=\"https:\/\/www.microsoft.com\/security\/blog\/2021\/03\/02\/hafnium-targeting-exchange-servers\/#scan-log\">Examinez les scripts fournis<\/a> par Microsoft <\/strong>et utilisez d\u2019autres outils d\u2019analyse pour voir si votre organisation a \u00e9t\u00e9 compromise. Cependant, les entreprises qui n\u2019ont pas s\u00e9curis\u00e9 leurs serveurs Exchange peuvent en principe supposer qu\u2019elles seront affect\u00e9es. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cdadbd8 e-flex e-con-boxed e-con e-parent\" data-id=\"cdadbd8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-104dd95 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"104dd95\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f6e5251 e-flex e-con-boxed e-con e-parent\" data-id=\"f6e5251\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-f1cf26c e-con-full e-flex e-con e-child\" data-id=\"f1cf26c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ee082fd elementor-widget elementor-widget-text-editor\" data-id=\"ee082fd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>D\u2019autres tests de s\u00e9curit\u00e9 in\u00e9vitables<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bc25934 e-con-full e-flex e-con e-child\" data-id=\"bc25934\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2b46b6f elementor-widget elementor-widget-text-editor\" data-id=\"2b46b6f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Dans le cadre de son engagement en faveur d\u2019une plus grande s\u00e9curit\u00e9 informatique dans les PME, la BSI a adress\u00e9 aujourd\u2019hui une lettre directement \u00e0 la direction des entreprises dont les serveurs Exchange sont concern\u00e9s par la connaissance de la BSI, formulant<a href=\"https:\/\/www.bsi.bund.de\/SharedDocs\/Cybersicherheitswarnungen\/DE\/2021\/2021-197772-1132.pdf?__blob=publicationFile&amp;v=10\">des recommandations de contre-mesures<\/a> .<\/p><p>Selon les experts en s\u00e9curit\u00e9, si le r\u00e9sultat du test est positif, il ne suffira pas toujours de combler les lacunes de s\u00e9curit\u00e9 gr\u00e2ce aux mises \u00e0 jour Microsoft. Il est plut\u00f4t normal que dans de tels cas d\u2019autres logiciels malveillants aient d\u00e9j\u00e0 \u00e9t\u00e9 infiltr\u00e9s. Des tests de s\u00e9curit\u00e9 approfondis et une r\u00e9installation partielle des syst\u00e8mes seront in\u00e9vitables dans de tels cas.  <\/p><p>Les experts de Perseus recommandent vivement de maintenir le logiciel \u00e0 jour. De plus, il est recommand\u00e9 de r\u00e9aliser des v\u00e9rifications des IOC disponibles en lien avec les vuln\u00e9rabilit\u00e9s associ\u00e9es \u00e0 cet incident. La liste est disponible <a href=\"https:\/\/www.microsoft.com\/security\/blog\/2021\/03\/02\/hafnium-targeting-exchange-servers\/#scan-log\">ici<\/a> .  <\/p><p>N\u2019h\u00e9sitez pas \u00e0 nous contacter si vous souhaitez savoir comment am\u00e9liorer la cybers\u00e9curit\u00e9 de votre entreprise sur le long terme !<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5f622d6 e-flex e-con-boxed e-con e-parent\" data-id=\"5f622d6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-9c1eeee e-con-full e-flex e-con e-child\" data-id=\"9c1eeee\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e889ec5 e-con-full e-flex e-con e-child\" data-id=\"e889ec5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-335618c elementor-widget elementor-widget-text-editor\" data-id=\"335618c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><img decoding=\"async\" class=\"alignnone wp-image-22879\" src=\"https:\/\/perseus.de\/wp-content\/uploads\/2025\/05\/Microsoft-Exchange-Breach_-2021-400x566-1.png\" alt=\"\" width=\"600\" height=\"849\" srcset=\"https:\/\/perseus.de\/wp-content\/uploads\/2025\/05\/Microsoft-Exchange-Breach_-2021-400x566-1.png 400w, https:\/\/perseus.de\/wp-content\/uploads\/2025\/05\/Microsoft-Exchange-Breach_-2021-400x566-1-212x300.png 212w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>09.03.2021 Alerte de danger actuelle. Des mesures sont urgentement n\u00e9cessaires. Vuln\u00e9rabilit\u00e9s critiques de la plateforme de messagerie Exchange Server de Microsoft Des dizaines de milliers d\u2019entreprises et d\u2019autorit\u00e9s concern\u00e9es, dont quatre agences f\u00e9d\u00e9rales BSI : Installez les mises \u00e0 jour de s\u00e9curit\u00e9 fournies par Microsoft d\u00e8s que possible En raison d\u2019une vuln\u00e9rabilit\u00e9 de s\u00e9curit\u00e9 dans [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[65],"tags":[],"class_list":["post-27957","post","type-post","status-publish","format-standard","hentry","category-alerte-aux-dangers"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Microsoft Exchange : Comblez rapidement les \u00e9carts ! - Perseus Technologies<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/perseus.de\/fr\/microsoft-exchange-comblez-rapidement-les-ecarts\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Microsoft Exchange : Comblez rapidement les \u00e9carts ! - Perseus Technologies\" \/>\n<meta property=\"og:description\" content=\"09.03.2021 Alerte de danger actuelle. 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