{"id":33910,"date":"2023-11-17T12:59:55","date_gmt":"2023-11-17T12:59:55","guid":{"rendered":"https:\/\/www.cyberguru.it\/2023\/11\/17\/les-lecons-de-lhistoire-fermez-cette-porte\/"},"modified":"2023-11-27T17:20:19","modified_gmt":"2023-11-27T17:20:19","slug":"les-lecons-de-lhistoire-fermez-cette-porte","status":"publish","type":"post","link":"https:\/\/www.cyberguru.it\/fr\/2023\/11\/17\/les-lecons-de-lhistoire-fermez-cette-porte\/","title":{"rendered":"Les le\u00e7ons de l\u2019histoire&nbsp;: fermez cette porte&nbsp;!"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\"><strong>Le\u00e7ons de l\u2019histoire <\/strong> <\/h2>\n\n<p>Ma passion pour l\u2019histoire, combin\u00e9e \u00e0 ma \u00ab\u00a0d\u00e9formation professionnelle\u00a0\u00bb, m\u2019am\u00e8ne in\u00e9vitablement \u00e0 pr\u00eater attention \u00e0 certains \u00e9pisodes historiques, dont on peut tirer des <strong>le\u00e7ons utiles <\/strong>que nous pouvons appliquer \u00e0 la cybers\u00e9curit\u00e9 moderne. <\/p>\n\n<p>Il faut dire que les reconstructions historiques sont souvent controvers\u00e9es et contest\u00e9es par les historiens, et il est toujours difficile de comprendre \u00e0 quel point un \u00e9pisode donn\u00e9 peut avoir influenc\u00e9 le r\u00e9sultat final d\u2019\u00e9v\u00e9nements tr\u00e8s complexes. <\/p>\n\n<p>L\u2019\u00e9pisode sur lequel je me concentre ici ne fait pas exception \u00e0 la r\u00e8gle, mais <strong>la le\u00e7on que l\u2019on peut tirer de cette histoire sp\u00e9cifique est certainement \u00e9clairante<\/strong> et vaut la peine de s\u2019y arr\u00eater un moment. <\/p>\n\n<p>Nous sommes en\u00a0<strong>1453<\/strong>, une ann\u00e9e qui, pour de nombreux historiens, repr\u00e9sente le passage du Moyen \u00c2ge \u00e0 la Renaissance, et dont l\u2019importance est fondamentale dans notre histoire. <\/p>\n\n<h2 class=\"wp-block-heading\"><strong>La chute de Constantinople <\/strong> <\/h2>\n\n<p>L\u2019ann\u00e9e marque la fin du dernier bastion de la civilisation romaine, l\u2019<strong>Empire romain d\u2019Orient<\/strong>, dont la capitale, <strong>Constantinople<\/strong>, est d\u00e9finitivement conquise par les <strong>Turcs ottomans<\/strong>, dirig\u00e9s par <strong>Mehmed\u00a0II<\/strong>. L\u2019Empire romain d\u2019Occident, berceau de la civilisation romaine, s\u2019est effondr\u00e9 il y a pr\u00e8s de 1\u00a0000\u00a0ans, sous les coups des troupes germaniques d\u2019Odoacre. <\/p>\n\n<p>Constantinople, litt\u00e9ralement \u00ab\u00a0ville de Constantin\u00a0\u00bb, \u00e9galement appel\u00e9e Nova Roma, (en\u00a01930, elle prendra le nom actuel d\u2019Istanbul), fut assi\u00e9g\u00e9e par les troupes ottomanes le <strong>6\u00a0avril\u00a01453<\/strong>. <\/p>\n\n<p><strong>La ville \u00e9tait c\u00e9l\u00e8bre \u00e0 l\u2019\u00e9poque pour ses murs, consid\u00e9r\u00e9s comme inviolables<\/strong>, mais les troupes turques disposaient d\u2019une nouvelle arme fantastique\u00a0: le canon ottoman. Voici la premi\u00e8re le\u00e7on \u00e0 tirer\u00a0: <strong>il n\u2019existe pas de syst\u00e8me de d\u00e9fense inviolable<\/strong>, car l\u2019\u00e9volution continue des types d\u2019attaque les remet en cause. Les m\u00e9thodes d\u00e9fensives doivent s\u2019adapter constamment pour faire front \u00e0 l\u2019\u00e9volution des diff\u00e9rents types d\u2019attaque. <\/p>\n\n<p>La sup\u00e9riorit\u00e9 des Turcs ottomans s\u2019exprimait \u00e9galement en termes d\u2019effectifs sur le terrain, au moins 10\u00a0fois plus nombreux que les Byzantins\u00a0; un facteur d\u00e9terminant dans l\u2019issue de la bataille. M\u00eame s\u2019il faut dire que Constantinople a r\u00e9sist\u00e9 \u00e0 l\u2019attaque pendant 53\u00a0jours. <\/p>\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"574\" src=\"https:\/\/www.cyberguru.it\/wp-content\/uploads\/2023\/11\/1697877744968-1024x574.png\" alt=\"Le&#xE7;ons de l&#x2019;histoire, image cr&#xE9;&#xE9;e avec midjourney\" class=\"wp-image-33706\" srcset=\"https:\/\/www.cyberguru.it\/wp-content\/uploads\/2023\/11\/1697877744968-980x549.png 980w, https:\/\/www.cyberguru.it\/wp-content\/uploads\/2023\/11\/1697877744968-480x269.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/figure>\n<h2 class=\"wp-block-heading\"><strong>Kerkoporta <\/strong> <\/h2>\n\n<p>C\u2019est pr\u00e9cis\u00e9ment ce 29\u00a0mai, jour de la capitulation, que se produisit l\u2019<strong>\u00e9pisode<\/strong> de la Kerkoporta, qui est aujourd\u2019hui consid\u00e9r\u00e9 comme d\u00e9cisif dans la chute de la ville. La Kerkoporta \u00e9tait une entr\u00e9e secondaire qui permettaient aux soldats de sortir de l\u2019enceinte. Il est probable que la porte <strong>soit rest\u00e9e ouverte<\/strong> apr\u00e8s l\u2019une de ces man\u0153uvres. Une escouade d\u2019Ottomans en aurait profit\u00e9 pour s\u2019infiltrer dans les murs de la ville et hisser leurs banni\u00e8res sur les remparts au-dessus de la Kerkoporta. Une action ayant provoqu\u00e9 un grand d\u00e9couragement parmi les d\u00e9fenseurs qui abaiss\u00e8rent \u00e9videmment davantage leurs d\u00e9fenses, en permettant aux troupes de Mehmed de prendre le contr\u00f4le de la ville, mettant ainsi fin \u00e0 l\u2019Empire romain d\u2019Orient. <\/p>\n\n<h2 class=\"wp-block-heading\"><strong>Le facteur humain <\/strong> <\/h2>\n\n<p>La le\u00e7on contemporaine que nous pouvons tirer de cet \u00e9pisode est presque embl\u00e9matique et d\u00e9crit bien la situation dans laquelle se trouvent la plupart des \u00e9quipes de cybers\u00e9curit\u00e9. <\/p>\n\n<p><strong>Ils investissent de l\u2019\u00e9nergie et des ressources pour construire des d\u00e9fenses \u00ab\u00a0robustes\u00a0\u00bb, capables de r\u00e9sister aux tentatives continues de cyberattaques, pour ensuite voir leurs efforts an\u00e9antis par les comportements des utilisateurs, qui, en effet, ouvrent des br\u00e8ches dans le syst\u00e8me d\u00e9fensif.<\/strong>  <\/p>\n\n<p>C\u2019est pourquoi aujourd\u2019hui, <strong>la cybers\u00e9curit\u00e9 doit aller de pair avec un investissement continu dans le facteur humain<\/strong>, dans le but de transformer les utilisateurs, c\u2019est-\u00e0-dire le maillon faible de la cha\u00eene de d\u00e9fense de premi\u00e8re ligne contre la cybercriminalit\u00e9. <\/p>\n\n<p>Comment\u00a0? Gr\u00e2ce \u00e0 un <strong>processus continu de formation et d\u2019entra\u00eenement<\/strong> encadr\u00e9 dont l\u2019objectif principal est de d\u00e9velopper une <strong>culture organisationnelle de la cybers\u00e9curit\u00e9<\/strong>. <\/p>\n\n<p>Contribuer \u00e0 cette grande mission est l\u2019objectif principal de <a href=\"https:\/\/www.linkedin.com\/company\/cyber-guru-italia\/\" target=\"_blank\" rel=\"noreferrer noopener\">Cyber\u00a0Guru\u00a0Italie<\/a> depuis\u00a02017. <\/p>\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n","protected":false},"excerpt":{"rendered":"<p>Le\u00e7ons de l\u2019histoire Ma passion pour l\u2019histoire, combin\u00e9e \u00e0 ma \u00ab\u00a0d\u00e9formation professionnelle\u00a0\u00bb, m\u2019am\u00e8ne in\u00e9vitablement \u00e0 pr\u00eater attention \u00e0 certains \u00e9pisodes historiques, dont on peut tirer des le\u00e7ons utiles que nous pouvons appliquer \u00e0 la cybers\u00e9curit\u00e9 moderne. Il faut dire que les reconstructions historiques sont souvent controvers\u00e9es et contest\u00e9es par les historiens, et il est toujours [&hellip;]<\/p>\n","protected":false},"author":16,"featured_media":33704,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","content-type":"","footnotes":""},"categories":[716],"tags":[756,663,651,747],"class_list":["post-33910","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elearning-expert-talks-fr","tag-cyber-security-awareness-fr","tag-cybercrime-fr-3","tag-cybersecurite-fr","tag-fraude"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Les le\u00e7ons de l\u2019histoire&nbsp;: fermez cette porte&nbsp;!<\/title>\n<meta name=\"description\" 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