{"id":9896,"date":"2016-01-16T09:02:00","date_gmt":"2016-01-16T16:02:00","guid":{"rendered":"https:\/\/swimlane.com\/resource\/3-major-security-operations-mistakes\/"},"modified":"2025-01-10T08:33:50","modified_gmt":"2025-01-10T15:33:50","slug":"3-erreurs-majeures-dans-les-operations-de-securite","status":"publish","type":"sw_resource","link":"https:\/\/swimlane.com\/fr\/blog\/3-major-security-operations-mistakes\/","title":{"rendered":"Trois erreurs majeures dans les op\u00e9rations de s\u00e9curit\u00e9"},"content":{"rendered":"<section class=\"bs-section bs-section-f49668dca89a07af4c4bed27713f079b6839f643 bs-section---default bs-section--blog-inner-banner\"><style>.bs-section.bs-section-f49668dca89a07af4c4bed27713f079b6839f643{ background-color: #000743;} <\/style><div class=\"container\">\n<div class=\"bs-row row  flex-md-row-reverse bs-row---default\">\n<div class=\"bs-column col-sm-12 col-md-12 col-lg-6   bs-column-3c02e72bbbdd27fbc2206a57dc520373f8b450b2 bs-column---default bs-column--right d-flex flex-column justify-content-end\"><figure class=\"wp-block-post-featured-image\"><img decoding=\"async\" src=\"https:\/\/swimlane.com\/wp-content\/uploads\/01.16.18-security-operations.png\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Ic\u00f4ne de cadenas num\u00e9rique centr\u00e9e au sein d&#039;\u00e9l\u00e9ments d&#039;interface circulaires superpos\u00e9s, repr\u00e9sentant la protection de la cybers\u00e9curit\u00e9 et la technologie de s\u00e9curit\u00e9 des donn\u00e9es.\" style=\"object-fit:cover;\" srcset=\"https:\/\/swimlane.com\/wp-content\/uploads\/01.16.18-security-operations.png 1120w, https:\/\/swimlane.com\/wp-content\/uploads\/01.16.18-security-operations-300x186.png 300w, https:\/\/swimlane.com\/wp-content\/uploads\/01.16.18-security-operations-1024x636.png 1024w, https:\/\/swimlane.com\/wp-content\/uploads\/01.16.18-security-operations-768x477.png 768w\" sizes=\"(max-width: 1120px) 100vw, 1120px\" \/><\/figure><\/div>\n\n\n\n<div class=\"bs-column col-sm-12  col-md-12 col-lg-6   bs-column-6a13826d98ae006805bf00373c567a95c3c65a9a bs-column---default d-flex flex-column\"><div class=\"wp-block-post-date\"><time datetime=\"2016-01-16T09:02:00-07:00\">16 janvier 2016<\/time><\/div>\n\n<h1 class=\"wp-block-post-title has-text-color has-white-color\">Trois erreurs majeures dans les op\u00e9rations de s\u00e9curit\u00e9<\/h1>\n\n\n<div class=\"bs-div bs-div-f106fb945b2c4610a440b9e5b4f63c0c1cbbec02 bs-div---default\"><div class=\"bs-div__inner d-flex flex-wrap align-items-center\">\n<a class=\"bs-post__author has-text-align-center\" href=\"https:\/\/swimlane.com\/fr\/author\/Katie_Bykowski\/\">\n\t<div class=\"profile-desc\">\n\t\t<figure>\n\t\t\t<img decoding=\"async\" src=\"https:\/\/swimlane.com\/wp-content\/uploads\/author_Katie_Bykowski.jpg\" alt=\"avatar de l&#039;utilisateur\">\n\t\t<\/figure>\n\t\t<span class=\"prefix\"><\/span>\n\t\t<span class=\"name\">\n\t\t\tKatie Bykowski\t\t<\/span>\n\t<\/div>\n<\/a>\n\n\n\n<div class=\"reading-time\">\n    <span class=\"reading-time__time\">3 <\/span> Lecture en une minute\n<\/div><\/div><\/div>\n<\/div>\n<\/div>\n<\/div><\/section>\n\n\n\n\n\n\n\n\n\n<section class=\"bs-section bs-section-050e6505c2b06c7ce9ca858e2f56661a365e6ba8 bs-section---default bs-section--blog-inner-main-contents\"><div class=\"container\">\n<div class=\"bs-row row justify-content-between  bs-row---default\">\n<div class=\"bs-column col-sm-12 col-md-1   bs-column-b9d738473a055284b615b4f50be5a383dfe4cc38 bs-column---default\"><div class=\"heateor_sss_sharing_container heateor_sss_horizontal_sharing\" data-heateor-ss-offset=\"0\" data-heateor-sss-href='https:\/\/swimlane.com\/fr\/blog\/3-major-security-operations-mistakes\/'><div class=\"heateor_sss_sharing_ul\"><a aria-label=\"E-mail\" class=\"heateor_sss_email\" href=\"https:\/\/swimlane.com\/fr\/blog\/3-major-security-operations-mistakes\/\" 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class=\"heateor_sss_button_linkedin\" href=\"https:\/\/www.linkedin.com\/sharing\/share-offsite\/?url=https%3A%2F%2Fswimlane.com%2Ffr%2Fblog%2F3-major-security-operations-mistakes%2F\" title=\"LinkedIn\" rel=\"nofollow noopener\" target=\"_blank\" style=\"font-size:32px!important;box-shadow:none;display:inline-block;vertical-align:middle\"><span class=\"heateor_sss_svg heateor_sss_s__default heateor_sss_s_linkedin\" style=\"background-color:#0077b5;width:35px;height:35px;border-radius:999px;display:inline-block;opacity:1;float:left;font-size:32px;box-shadow:none;display:inline-block;font-size:16px;padding:0 4px;vertical-align:middle;background-repeat:repeat;overflow:hidden;padding:0;cursor:pointer;box-sizing:content-box\"><svg style=\"display:block;border-radius:999px;\" focusable=\"false\" aria-hidden=\"true\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"100%\" height=\"100%\" viewbox=\"0 0 32 32\"><path d=\"M6.227 12.61h4.19v13.48h-4.19V12.61zm2.095-6.7a2.43 2.43 0 0 1 0 4.86c-1.344 0-2.428-1.09-2.428-2.43s1.084-2.43 2.428-2.43m4.72 6.7h4.02v1.84h.058c.56-1.058 1.927-2.176 3.965-2.176 4.238 0 5.02 2.792 5.02 6.42v7.395h-4.183v-6.56c0-1.564-.03-3.574-2.178-3.574-2.18 0-2.514 1.7-2.514 3.46v6.668h-4.187V12.61z\" fill=\"#fff\"><\/path><\/svg><\/span><\/a><\/div><div class=\"heateorSssClear\"><\/div><\/div>\n<\/div>\n\n\n\n<div class=\"bs-column col-sm-12  col-lg-8 col-md-11   bs-column-5fcbee853797bef68c609dd2715f511e3ead78a3 bs-column---default bs-column--contents\">\n<h2>&nbsp;<\/h2>\n<p>Lors d&#039;un webinaire r\u00e9cent, Cody Cornell, fondateur et PDG de Swimlane, a discut\u00e9 de <a href=\"https:\/\/swimlane.com\/fr\/les-4-principales-causes-des-operations-de-securite-non-durables\/\">quatre causes majeures<\/a> Les op\u00e9rations de s\u00e9curit\u00e9 non viables sont confront\u00e9es \u00e0 un volume d&#039;attaques sans pr\u00e9c\u00e9dent, \u00e0 une saturation des alertes, \u00e0 des outils de r\u00e9ponse obsol\u00e8tes et \u00e0 une p\u00e9nurie de personnel qualifi\u00e9 en cybers\u00e9curit\u00e9. Pour relever ces d\u00e9fis, les organisations ont tent\u00e9 de mettre en \u0153uvre diff\u00e9rentes m\u00e9thodes de s\u00e9curit\u00e9, dont certaines sont efficaces, tandis que d&#039;autres peuvent s&#039;av\u00e9rer plus n\u00e9fastes que b\u00e9n\u00e9fiques.<\/p>\n<p>Dans le webinaire intitul\u00e9 \u201c<a href=\"https:\/\/swimlane.com\/fr\/webinar-automating-security-operations\/\" rel=\"noreferrer noopener\">Automatisation des op\u00e9rations de s\u00e9curit\u00e9<\/a>,Cornell a explor\u00e9 trois erreurs courantes commises par les organisations concernant leurs m\u00e9thodes pour surmonter ces d\u00e9fis, et elles sont expliqu\u00e9es ci-dessous.<\/p>\n<h3>1. Privil\u00e9gier la priorisation des alertes plut\u00f4t que de traiter 100 % des alertes.<\/h3>\n<p>De nombreuses entreprises utilisent une m\u00e9thode de priorisation pour identifier les alarmes \u00e0 traiter et leur ordre de priorit\u00e9. Cependant, face au volume consid\u00e9rable d&#039;alarmes re\u00e7ues, les organisations ne peuvent en g\u00e9rer manuellement qu&#039;une quantit\u00e9 limit\u00e9e. De ce fait, un certain nombre d&#039;alarmes restent sans r\u00e9ponse. Outre le fait qu&#039;il s&#039;agit d&#039;une mauvaise pratique courante, ces \u00e9v\u00e9nements non g\u00e9r\u00e9s et laiss\u00e9s sans surveillance dans l&#039;environnement r\u00e9seau peuvent engendrer des risques d&#039;audit et entra\u00eener de nombreuses cons\u00e9quences impr\u00e9vues pour les organisations.<\/p>\n<p>Comme l&#039;a expliqu\u00e9 Cornell, lorsqu&#039;une organisation traite enfin ses alertes de faible priorit\u00e9, le d\u00e9lai d&#039;attente est d\u00e9j\u00e0 extr\u00eamement long. Autrement dit, le temps entre la d\u00e9tection d&#039;une activit\u00e9 r\u00e9seau suspecte et la r\u00e9ponse \u00e0 l&#039;alerte est beaucoup trop long. Cela r\u00e9duit consid\u00e9rablement la capacit\u00e9 de l&#039;organisation \u00e0 contenir la menace au plus t\u00f4t.<\/p>\n<p>\u201c Afin de g\u00e9rer le nombre croissant d&#039;alertes et d&#039;accro\u00eetre la capacit\u00e9 de nos \u00e9quipes \u00e0 y r\u00e9pondre, nous \u00e9tudions des solutions pour amplifier, optimiser et rationaliser la mani\u00e8re dont les organisations r\u00e9agissent \u00e0 tous les \u00e9v\u00e9nements et activit\u00e9s de s\u00e9curit\u00e9 \u201d, a d\u00e9clar\u00e9 Cornell. Aujourd&#039;hui, la priorisation des alertes ne suffit plus.<\/p>\n<h3>2. N\u00e9gliger la moiti\u00e9 du cycle de vie des op\u00e9rations de s\u00e9curit\u00e9\u00a0: la r\u00e9ponse aux incidents<\/h3>\n<p>Les organisations utilisent aujourd&#039;hui un certain nombre de technologies de d\u00e9tection modernes pour identifier les alarmes, les activit\u00e9s et les t\u00e2ches de s\u00e9curit\u00e9, allant de l&#039;analyse du comportement des utilisateurs \u00e0 la gestion des informations et des \u00e9v\u00e9nements de s\u00e9curit\u00e9 (SIEM), en passant par la d\u00e9tection et la r\u00e9ponse aux points de terminaison (EDR) et les outils de renseignement sur les menaces.<\/p>\n<p>Ces vingt derni\u00e8res ann\u00e9es, de nombreuses organisations ont investi massivement dans des outils de d\u00e9tection. Cependant, un changement de paradigme semble s&#039;op\u00e9rer\u00a0: elles prennent conscience que c&#039;est la gestion des incidents en coulisses qui doit \u00eatre perfectionn\u00e9e. Pour celles qui ignorent ou ne per\u00e7oivent pas la n\u00e9cessit\u00e9 d&#039;op\u00e9rations de s\u00e9curit\u00e9 sophistiqu\u00e9es en coulisses, les cons\u00e9quences risquent d&#039;\u00eatre lourdes.<\/p>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-1913\" src=\"https:\/\/swimlane.com\/assets\/uploads\/images\/wp\/2017\/03\/Workflow-Process-300x200.jpg\" alt=\"Workflow-Process-300x200.jpg\" width=\"300\" height=\"200\">3. Recourir \u00e0 des outils de r\u00e9ponse obsol\u00e8tes et\/ou manuels<\/h3>\n<p>Il n&#039;est pas rare de voir des organisations utiliser encore des outils de r\u00e9ponse obsol\u00e8tes, comme des documents texte, des tableurs ou d&#039;anciens syst\u00e8mes de gestion des incidents, pour r\u00e9soudre les menaces. Certaines organisations ont m\u00eame encore recours \u00e0 la ligne de commande pour chaque alerte.<\/p>\n<p>Ces outils et m\u00e9canismes sont encore en place dans ces organisations simplement parce que c&#039;est ce que leur personnel de premi\u00e8re ligne est conditionn\u00e9 \u00e0 savoir et \u00e0 faire. <a href=\"https:\/\/www.damballa.com\/damballa-q1-2014-report-shows-average-enterprise-generates-10000-security-events-daily\/\" target=\"_blank\" rel=\"noopener\">Les recherches ont montr\u00e9 que<\/a> En moyenne, les organisations g\u00e8rent plus de 10\u00a0000 incidents de s\u00e9curit\u00e9 par jour, ce qui pourrait repr\u00e9senter un volume de travail impossible de 333 heures par jour. Il est donc \u00e9vident que les processus manuels et obsol\u00e8tes sont irr\u00e9alistes et feront plus de mal que de bien.<\/p>\n<p>Parall\u00e8lement, le nombre de personnes capables de g\u00e9rer les alertes et les t\u00e2ches de s\u00e9curit\u00e9 comme il se doit est restreint, et le recrutement de tels profils qualifi\u00e9s peut s&#039;av\u00e9rer co\u00fbteux pour les entreprises. Il est clair que cela repr\u00e9sente un d\u00e9fi majeur pour les organisations actuelles.<\/p>\n<p>Vous souhaitez en savoir plus sur les meilleures pratiques en mati\u00e8re d&#039;op\u00e9rations de s\u00e9curit\u00e9 ou sur une alternative efficace \u00e0 ces m\u00e9thodes potentiellement dangereuses\u00a0? Acc\u00e9dez au webinaire r\u00e9cent de Swimlane\u00a0: \u201c\u00a0\u2026\u00a0\u00bb<a href=\"https:\/\/swimlane.com\/fr\/automating-security-operations-webinar\/\">Automatisation des op\u00e9rations de s\u00e9curit\u00e9<\/a>.&quot;\u201d<\/p>\n<\/div>\n\n\n\n<div class=\"bs-column col-sm-12  col-md-12 col-lg-3   bs-column-4ffac197d945e44dadadc9d8f52ba4737135ba21 bs-column---default\">\n<div class=\"bs-div bs-div-ffc71f24880cf5ca65c4a54e87fb14a656cc562d bs-div---default bs-div--tags\"><div class=\"bs-div__inner\">\n<h2 class=\"wp-block-heading\" id=\"h-tags\">\u00c9tiquettes<\/h2>\n\n\n<div class=\"post-tag-wrapper\">\n    <p><\/p><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"bs-div bs-div-69c461f15bb5fa3fc09d1aa73a0e5865005218ff bs-div---default bs-div--related-posts\"><div class=\"bs-div__inner\">\n<h2 class=\"wp-block-heading\" id=\"h-related-posts\">Articles similaires<\/h2>\n\n\n\n<div class=\"bs-related-posts bs-related-posts-block---default\"><div 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bs-column-4bb8c1b66cb5e72c43988fbaf017046daf38fc18 bs-column---default\">\t\t\t\t\t<div class=\"bs-post bs-post__container bs-post__container--no-image bs-post-69e91fd5ade78 bs-single-post---default enable\" >\n\t\t\t<a class=\"bs-post__trigger\" href='https:\/\/swimlane.com\/fr\/blog\/three-crucial-questions-to-ask-before-adopting-cyber-security-solutions\/' target='_self'>\t\t\t<div class=\"bs-post__inner\">\n\t\t\t\t<div class=\"bs-post__details\">    <div class=\"bs-post__date\">\n        <span>12 mars 2015<\/span>\n    <\/div>\n    <div class=\"bs-post__title\">\n        <h5>Trois questions cruciales \u00e0 se poser avant d&#039;adopter une solution de cybers\u00e9curit\u00e9<\/h5>\n    <\/div>\n<div class=\"bs-post__learn-more\">\n    <span class='btn learn-more-text bs-post__learn-more-text'>En savoir plus<\/span><\/div>\n<\/div>\t\t\t<\/div>\n\t\t\t<\/a>\t\t<\/div>\n\t<\/div>\n\n\n\n<div class=\"bs-column col-sm-4   bs-column-4bb8c1b66cb5e72c43988fbaf017046daf38fc18 bs-column---default\">\t\t\t\t\t<div class=\"bs-post bs-post-69e91fd5aedb3 bs-single-post---default enable\" >\n\t\t\t<a class=\"bs-post__trigger\" href='https:\/\/swimlane.com\/fr\/blog\/automating-vulnerability-lifecycle-management-part-1\/' target='_self'>\t\t\t<div class=\"bs-post__inner\">\n\t\t\t\t<div class=\"bs-post__details\">    <div class=\"bs-post__date\">\n        <span>22 novembre 2015<\/span>\n    <\/div>\n    <div class=\"bs-post__title\">\n        <h5>Trois questions cruciales concernant l&#039;automatisation de la gestion du cycle de vie des vuln\u00e9rabilit\u00e9s \u2013 Partie 1<\/h5>\n    <\/div>\n<div class=\"bs-post__learn-more\">\n    <span class='btn learn-more-text bs-post__learn-more-text'>En savoir plus<\/span><\/div>\n<\/div>\t\t\t<\/div>\n\t\t\t<\/a>\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n<\/div>\n<\/div>\n<\/div><\/section>\n\n\n\n\n\n<section class=\"bs-section bs-section-2a4a600ae9ab197b6a4ccafe05152bf1a2fde1d1 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