{"id":38328,"date":"2023-12-26T12:01:24","date_gmt":"2023-12-26T11:01:24","guid":{"rendered":"https:\/\/www.wallix.com\/?p=38328"},"modified":"2025-11-18T09:39:44","modified_gmt":"2025-11-18T08:39:44","slug":"3-questions-que-les-ciso-devraient-vraiment-se-poser","status":"publish","type":"post","link":"https:\/\/www.wallix.com\/fr\/blogpost\/3-questions-que-les-ciso-devraient-vraiment-se-poser\/","title":{"rendered":"3 questions que les CISO devraient vraiment se poser"},"content":{"rendered":"<div class='flex_column_table av-m41ix7eo-b2b0091eb88a891d068c4cf387bb6f16 sc-av_two_third av-equal-height-column-flextable'>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-m41ix7eo-b2b0091eb88a891d068c4cf387bb6f16\">\n#top .flex_column_table.av-equal-height-column-flextable.av-m41ix7eo-b2b0091eb88a891d068c4cf387bb6f16{\nmargin-top:0px;\nmargin-bottom:0;\n}\n.flex_column.av-m41ix7eo-b2b0091eb88a891d068c4cf387bb6f16{\npadding:50px 50px 50px 50px;\nbackground-color:#ffffff;\n}\n\n@media only screen and (max-width: 479px){ \n#top .flex_column_table.av-equal-height-column-flextable.av-m41ix7eo-b2b0091eb88a891d068c4cf387bb6f16{\nmargin-top:-200px;\nmargin-bottom:0;\n}\n}\n<\/style>\n<div  class='flex_column av-m41ix7eo-b2b0091eb88a891d068c4cf387bb6f16 av_two_third  avia-builder-el-0  el_before_av_one_third  avia-builder-el-first  first no_margin flex_column_table_cell av-equal-height-column av-align-top  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lqm8jn9j-727a8431ccc4c2a60e237b1530e47115\">\n#top .av-special-heading.av-lqm8jn9j-727a8431ccc4c2a60e237b1530e47115{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-lqm8jn9j-727a8431ccc4c2a60e237b1530e47115 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-lqm8jn9j-727a8431ccc4c2a60e237b1530e47115 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-lqm8jn9j-727a8431ccc4c2a60e237b1530e47115 av-special-heading-h1 blockquote modern-quote  avia-builder-el-1  el_before_av_post_metadata  avia-builder-el-first '><h1 class='av-special-heading-tag '  itemprop=\"headline\"  >3 questions que les CISO devraient vraiment se poser<\/h1><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n<div  class='av-post-metadata-container av-av_post_metadata-36bcf33e90f22125c019c70beb35c7b9 av-metadata-container-align-left  avia-builder-el-2  el_after_av_heading  el_before_av_hr  av-metadata-container-1'><div class='av-post-metadata-container-inner'><span class=\"av-post-metadata-content av-post-metadata-meta-content\"><span class=\"av-post-metadata-content av-post-metadata-author\"  itemprop=\"author\" ><span class=\"av-metadata-before av-metadata-before-author\">by<\/span><span class=\"av-post-metadata-author-link\" ><a href=\"https:\/\/www.wallix.com\/fr\/author\/alex\/\"  rel=\"author\">WALLIX<\/a><\/span><\/span><span class=\"av-post-metadata-content av-post-metadata-separator\">\/<\/span><span class=\"av-post-metadata-content av-post-metadata-modified\"><span class=\"av-post-metadata-modified-date\" >18 Novembre 2025<\/span><\/span><span class=\"av-post-metadata-content av-post-metadata-separator\">\/<\/span><span class=\"av-post-metadata-content av-post-metadata-category\"><span class=\"av-metadata-before av-metadata-before-categories\">in<\/span><span class=\"av-post-metadata-category-link\" ><a href=\"https:\/\/www.wallix.com\/fr\/category\/blogpost\/\" >BLOGPOST<\/a><\/span>, <span class=\"av-post-metadata-category-link\" ><a href=\"https:\/\/www.wallix.com\/fr\/category\/blogpost\/gestion-des-acces-a-privileges-fr\/\" >GESTION DES ACC\u00c8S \u00c0 PRIVIL\u00c8GES<\/a><\/span><\/span><\/span><\/div><\/div><br \/>\n<div  class='hr av-av_hr-bca31578670ae9d408d6d6d291fc57a6 hr-default  avia-builder-el-3  el_after_av_post_metadata  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-lqm8kzru-9185c9118edc1c9e90bb2bc70dac1e19 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p>ciso-security-questions.jpg<br \/>\nL\u2019objectif principal de tout Chef de la s\u00e9curit\u00e9 des syst\u00e8mes d&rsquo;information est de pr\u00e9venir les cons\u00e9quences de toute atteinte \u00e0 la s\u00e9curit\u00e9. Comme nous le savons bien, ceci est plus facile \u00e0 dire qu\u2019\u00e0 faire. En fait, tout bon Chef de la s\u00e9curit\u00e9 des syst\u00e8mes d&rsquo;information doit arriver chaque matin au travail en pensant qu\u2019une violation s\u2019est d\u00e9j\u00e0 produite, et dans l\u2019esprit qu\u2019il doit corriger les vuln\u00e9rabilit\u00e9s et s\u00e9curiser le syst\u00e8me selon les standards les plus \u00e9lev\u00e9s. Jour apr\u00e8s jour.<\/p>\n<p>Toutefois, dans ce but, les Chefs de la s\u00e9curit\u00e9 des syst\u00e8mes d&rsquo;information doivent poser un certain nombre de questions \u00e0 eux-m\u00eames, ainsi qu\u2019\u00e0 leurs \u00e9quipes, et \u00eatre pr\u00eats et pr\u00e9par\u00e9s \u00e0 y r\u00e9pondre afin de mettre en place les mesures les plus efficaces en mati\u00e8re de cybers\u00e9curit\u00e9 afin de prot\u00e9ger les donn\u00e9es, les syst\u00e8mes et les ressources en cas de violation.<\/p>\n<h2><span class=\"hs_cos_wrapper hs_cos_wrapper_meta_field hs_cos_wrapper_type_rich_text\" data-hs-cos-general-type=\"meta_field\" data-hs-cos-type=\"rich_text\"><span style=\"color: #f37300;\"><strong>1. Est-ce que mon organisation est s\u00e9curis\u00e9e ?<\/strong><\/span><br \/>\n<\/span><\/h2>\n<p>La question peut para\u00eetre \u00e9vidente, mais il y existe certains facteurs \u00e0 prendre en compte. Premi\u00e8rement, le Chef de la s\u00e9curit\u00e9 des syst\u00e8mes d&rsquo;information doit bien comprendre le go\u00fbt du risque de l\u2019organisation qui diff\u00e8re selon les diff\u00e9rentes organisations. Id\u00e9alement, toute lacune potentielle doit \u00eatre prot\u00e9g\u00e9e en tout temps. Mais les facteurs, tels que le budget, la structure, et la gestion des acc\u00e8s contribuent tous pour leur part \u00e0 ce que le niveau de risque de l\u2019organisation en question peut tol\u00e9rer afin que ses affaires continuent de bien fonctionner.<\/p>\n<p>Le Chef de la s\u00e9curit\u00e9 des syst\u00e8mes d&rsquo;information doit \u00eatre en mesure de d\u00e9montrer, sur la base d\u2019\u00e9valuations actualis\u00e9es des risques, de quelle mani\u00e8re les initiatives utilis\u00e9es fonctionnent face aux vuln\u00e9rabilit\u00e9s, r\u00e9duisent la surface d\u2019attaque et alignent la cybers\u00e9curit\u00e9 \u00e0 travers l\u2019organisation.<\/p>\n<h2><span style=\"color: #f37300;\"><strong>2. Est-ce que ma strat\u00e9gie en mati\u00e8re de cybers\u00e9curit\u00e9 vaut l\u2019investissement ?<\/strong><\/span><\/h2>\n<p>Dans la limite des contraintes impos\u00e9es par le budget et la taille de l\u2019\u00e9quipe, quelle est l\u2019efficacit\u00e9 de la strat\u00e9gie actuelle en mati\u00e8re de s\u00e9curit\u00e9 des TI ? Quelles sont les exigences minimums en mati\u00e8re de s\u00e9curit\u00e9, et est-ce que je satisfais \u00e0 ces normes ? Ou, si le budget actuel est insuffisant, comment puis-je quantifier les avantages d\u2019augmenter le budget et pr\u00e9senter cela \u00e0 la direction ?<\/p>\n<p>Afin de s\u2019assurer si les investissements dans une strat\u00e9gie d\u00e9finie en valent la peine, il est utile pour le Chef de la s\u00e9curit\u00e9 des syst\u00e8mes d&rsquo;information d\u2019avoir acc\u00e8s aux statistiques et aux rapports concernant les attaques pr\u00e9c\u00e9dentes qui ont lieu ailleurs dans d\u2019autres soci\u00e9t\u00e9s ou environnements comparables, et de les analyser par rapport aux co\u00fbts (aussi bien financiers que d\u2019une autre nature) occasionn\u00e9s par une telle attaque dans leur propre organisation. Mais finalement, les mesures mises en place doivent \u00eatre calibr\u00e9es ? et adapt\u00e9es avec les affaires et les normes s\u00e9curitaires en constante \u00e9volution alors que les r\u00e9glementations futures seront mises en place par secteur et par r\u00e9gion.<\/p>\n<p>En gardant tout cela \u00e0 l&rsquo;esprit, le Chef de la s\u00e9curit\u00e9 des syst\u00e8mes d&rsquo;information doit avoir pleinement connaissance des options disponibles pour l\u2019organisation afin de d\u00e9terminer quelles politiques de s\u00e9curit\u00e9 ou quels outils correspondront le mieux aux besoins de l\u2019organisation, et seront conformes aux r\u00e9glementations comme le RGPD, la norme PCI DSS ou la directive NIS (Network and Information System Security), de la mani\u00e8re la plus simple et la plus co\u00fbt efficace, et sans sacrifier la productivit\u00e9.<\/p>\n<h2><span style=\"color: #f37300;\"><strong>3. Qui a acc\u00e8s \u00e0 quoi ?<\/strong><\/span><\/h2>\n<p>Les menaces internes figurent parmi les menaces les plus courantes qui affectent les organisations de toutes formes et de toutes tailles. Qu\u2019elles touchent les employ\u00e9s de longue date, les membres de l\u2019\u00e9quipe travaillant \u00e0 distance ou les fournisseurs externes, ces menaces ne r\u00e9sultent pas forc\u00e9ment de mauvaises intentions. Le simple fait de perdre un Post-it sur lequel sont \u00e9crits les identifiants de connexion suffit \u00e0 paralyser un syst\u00e8me sans que l\u2019auteur ait la moindre id\u00e9e qu\u2019il est en train de mettre l\u2019organisation en p\u00e9ril. En fait, 74% de tous les incidents li\u00e9s \u00e0 la s\u00e9curit\u00e9 sont \u00e0 l\u2019origine dus \u00e0 des informations d&rsquo;identification perdues ou d\u00e9rob\u00e9es. Mais les organisations perdent souvent la trace des comptes utilisateurs \u00e9tant donn\u00e9 les mouvements de personnel ou le changement des r\u00f4les. Un outil de d\u00e9couverte de compte utilisateur constitue la premi\u00e8re \u00e9tape essentielle pour le Chef de la s\u00e9curit\u00e9 des syst\u00e8mes d&rsquo;information de comprendre o\u00f9 reposent les vuln\u00e9rabilit\u00e9s de menace interne.<\/p>\n<p>Mais en connaissant exactement qui a acc\u00e8s \u00e0 ces \u00e9l\u00e9ments du syst\u00e8me, et en s\u2019assurant que ces personnes op\u00e8rent \u00e0 un niveau de moindre privil\u00e8ge tout en \u00e9tant toujours en mesure de faire leur travail, est un facteur essentiel pour maintenir une infrastructure IT sure, m\u00eame (ou en particulier) dans de tr\u00e8s grandes entreprises.<strong><br \/>\n<\/strong><\/p>\n<p>Gestion des acc\u00e8s \u00e0 privil\u00e8ges (PAM) est au c\u0153ur de ce d\u00e9fi, et figure parmi les m\u00e9thodes les plus efficaces pour s\u00e9curiser l\u2019infrastructure TI de l\u2019organisation. C\u2019est la raison pour laquelle le Bastion Wallix constitue un outil indispensable que les Chefs de la s\u00e9curit\u00e9 des syst\u00e8mes d&rsquo;information doivent avoir dans leur arsenal.<\/p>\n<p>Avec une visibilit\u00e9 globale sur qui \u00e0 acc\u00e8s \u00e0 quelles ressources, et \u00e0 quel moment, et le suivi de toutes les activit\u00e9s en vue d\u2019un examen et d\u2019une v\u00e9rification, une robuste solution PAM r\u00e9sout les aspects les plus difficiles de l\u2019infrastructure de s\u00e9curit\u00e9 TI.<\/p>\n<p>Un bon contr\u00f4le d\u2019acc\u00e8s augmente \u00e0 la fois la productivit\u00e9 et la protection des syst\u00e8mes et des donn\u00e9es, ce qui constitue un \u00e9quilibre difficile \u00e0 atteindre lorsque l\u2019on veut concilier l\u2019efficacit\u00e9 et la s\u00e9curit\u00e9. Cependant, WALLIX facilite le d\u00e9ploiement de la gestion de l\u2019acc\u00e8s \u00e0 privil\u00e8ges sans interrompre les fonctions quotidiennes des affaires, et sans effort particulier \u00e0 fournir d la part du personnel TI. En fin de compte, il offre un maximum de protection et une conformit\u00e9 avec les r\u00e9glementations en mati\u00e8re de s\u00e9curit\u00e9 tout en maintenant une productivit\u00e9 optimale \u00e0 travers l\u2019organisation, et c\u2019est que chaque Chef de la s\u00e9curit\u00e9 des syst\u00e8mes d&rsquo;information a besoin de savoir.<\/p>\n<\/div><\/section><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_one_third-8b3a908a4c9229354e4fe1a0efcfaf36\">\n#top .flex_column_table.av-equal-height-column-flextable.av-av_one_third-8b3a908a4c9229354e4fe1a0efcfaf36{\nmargin-top:0px;\nmargin-bottom:0;\n}\n.flex_column.av-av_one_third-8b3a908a4c9229354e4fe1a0efcfaf36{\npadding:50px 50px 50px 50px;\nbackground-color:#ffffff;\n}\n\n@media only screen and (max-width: 479px){ \n#top .flex_column_table.av-equal-height-column-flextable.av-av_one_third-8b3a908a4c9229354e4fe1a0efcfaf36{\nmargin-top:-200px;\nmargin-bottom:0;\n}\n}\n<\/style>\n<div  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Autoclose: 1 --><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":3,"featured_media":3301,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"categories":[1640,1788],"tags":[],"class_list":["post-38328","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogpost","category-gestion-des-acces-a-privileges-fr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>3 questions que les CISO devraient vraiment se poser - WALLIX<\/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:\/\/www.wallix.com\/fr\/blogpost\/3-questions-que-les-ciso-devraient-vraiment-se-poser\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"3 questions que les CISO devraient vraiment se poser - 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