{"id":352498,"date":"2021-06-14T11:21:19","date_gmt":"2021-06-14T10:21:19","guid":{"rendered":"http:\/\/kapitalis.com\/tunisie\/?p=352498"},"modified":"2021-06-14T11:24:33","modified_gmt":"2021-06-14T10:24:33","slug":"securite-informatique-nouvelles-recommandations-de-lansi","status":"publish","type":"post","link":"https:\/\/kapitalis.com\/tunisie\/2021\/06\/14\/securite-informatique-nouvelles-recommandations-de-lansi\/","title":{"rendered":"S\u00e9curit\u00e9 informatique : Nouvelles recommandations de l\u2019Ansi"},"content":{"rendered":"\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"http:\/\/kapitalis.com\/tunisie\/wp-content\/uploads\/2021\/06\/Ansi.jpg\" alt=\"\" class=\"wp-image-352501\"\/><\/figure><\/div>\n\n\n\n<p><strong><em>L\u2019Agence nationale de la s\u00e9curit\u00e9 informatique (Ansi) a publi\u00e9 dimanche 13 juin 2021 un ensemble de recommandations pour aider les internautes \u00e0 se prot\u00e9ger contre les attaques sur les mots de passe.<\/em><\/strong><\/p>\n\n\n\n<!--more-->\n\n\n\n<p>Selon l\u2019agence, plusieurs techniques sont utilis\u00e9es par les pirates pour d\u00e9chiffrer les mots de passe de leurs victimes, en utilisant parfois des outils gratuits disponibles sur Internet.<\/p>\n\n\n\n<p>Les attaques habituelles utilis\u00e9es pour cracker un mot de passe sont la force brute (deviner le mot de passe gr\u00e2ce \u00e0 des millions de possibilit\u00e9s, \u00e0 l\u2019aide de dictionnaires), l\u2019interception (de donn\u00e9es envoy\u00e9es en clair sur des r\u00e9seaux non s\u00e9curis\u00e9s), l\u2019ing\u00e9nierie sociale (en trompant les utilisateurs gr\u00e2ce \u00e0 des techniques sp\u00e9cifiques), les keyloggers (en utilisant des enregistreurs de frappe pour capturer les mots de passe).<\/p>\n\n\n\n<p>Pour se prot\u00e9ger contre ces attaques, l\u2019ANSI recommande d\u2019interdire les mots de passe simples et faciles \u00e0 deviner, en indiquant qu\u2019un mot de passe fort doit \u00eatre compos\u00e9 de 8 \u00e0 12 caract\u00e8res de types diff\u00e9rents (lettres, chiffres, symboles).<\/p>\n\n\n\n<p>La mise en place de r\u00e8gles de gestion des mots de passe est aussi fortement recommand\u00e9e.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Changer p\u00e9riodiquement les param\u00e8tres d\u2019acc\u00e8s<\/h3>\n\n\n\n<p>Par ailleurs, l\u2019agence consid\u00e8re qu\u2019utiliser le m\u00eame mot de passe pendant une longue p\u00e9riode et pour tous les comptes est une mauvaise pratique chez les salari\u00e9s, pr\u00e9conisant un changement p\u00e9riodique des param\u00e8tres d\u2019acc\u00e8s, tout en revoyant les r\u00e8gles de complexit\u00e9 des mots de passe.<\/p>\n\n\n\n<p>Il a \u00e9galement soulign\u00e9 que les administrateurs de syst\u00e8mes d\u2019information ne sont pas \u00e9pargn\u00e9s par les attaques par mot de passe, indiquant que l\u2019impact d\u2019une telle attaque peut \u00eatre grave pour la s\u00e9curit\u00e9 des syst\u00e8mes informatiques. Pour cette raison, il est n\u00e9cessaire de durcir les r\u00e8gles de d\u00e9finition des mots de passe des administrateurs, tout en augmentant la fr\u00e9quence de leur changement.<\/p>\n\n\n\n<p>D\u00e8s qu\u2019une politique de gestion des mots de passe est mise en place, un suivi r\u00e9gulier de son application par les usagers est recommand\u00e9 par l\u2019ANSI. Un tel suivi peut r\u00e9v\u00e9ler des failles potentielles li\u00e9es au non-respect des r\u00e8gles.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u2019Agence nationale de la s\u00e9curit\u00e9 informatique (Ansi) a publi\u00e9 dimanche 13 juin 2021 un ensemble de recommandations pour aider les internautes \u00e0 se prot\u00e9ger contre les attaques sur les mots de passe.<\/p>\n","protected":false},"author":8,"featured_media":352501,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[995,996,2433],"tags":[31320,91223,91222,91224,6661],"class_list":["post-352498","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-economie","category-media","category-tunisie","tag-ansi","tag-keyloggers","tag-mots-de-passe","tag-reseaux-non-securises","tag-securite-informatique"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>S\u00e9curit\u00e9 informatique : Nouvelles recommandations de l\u2019Ansi - 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