{"id":10558,"date":"2026-01-09T19:17:29","date_gmt":"2026-01-09T19:17:29","guid":{"rendered":"https:\/\/www.martinsdelima.com\/experiences-rapports-informatiques\/"},"modified":"2026-02-08T18:48:07","modified_gmt":"2026-02-08T18:48:07","slug":"experiences-rapports-informatiques","status":"publish","type":"page","link":"https:\/\/www.martinsdelima.com\/fr\/experiences-rapports-informatiques\/","title":{"rendered":"Exp\u00e9riences Rapports informatiques"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"10558\" class=\"elementor elementor-10558 elementor-8615\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5861a17 elementor-section-full_width elementor-section-stretched elementor-section-height-min-height elementor-section-height-default elementor-section-items-middle\" data-id=\"5861a17\" data-element_type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;,&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-ea42bdb\" data-id=\"ea42bdb\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8924fce elementor-widget elementor-widget-heading\" data-id=\"8924fce\" data-element_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\"><b>Exp\u00e9riences<\/b><br><b>Expertises informatiques<\/b> <br>Validation de la preuve num\u00e9rique et contre-expertise technique<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9dff6a0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9dff6a0\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c3e38d1\" data-id=\"c3e38d1\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-78fa56c elementor-widget elementor-widget-text-editor\" data-id=\"78fa56c\" data-element_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>Dans cette affaire, un conflit a \u00e9t\u00e9 soulev\u00e9 dans lequel il \u00e9tait essentiel de <strong>d\u00e9terminer, avec rigueur forensique, ce qui s&rsquo;\u00e9tait r\u00e9ellement pass\u00e9 avec un \u00e9quipement d&rsquo;entreprise<\/strong> et s&rsquo;il existait des indices techniques suffisants d&rsquo;<strong>acc\u00e8s \u00e0 des informations sensibles, de possible fuite de donn\u00e9es et\/ou de suppression d&rsquo;informations<\/strong>. La mission exigeait non seulement une analyse de l&rsquo;appareil, mais aussi une \u00e9valuation critique de la documentation technique d\u00e9j\u00e0 fournie par l&rsquo;autre partie. <\/h6><h6>La complexit\u00e9 de l&rsquo;affaire venait du fait que le d\u00e9bat s&rsquo;appuyait sur des conclusions pr\u00e9alables de tiers et sur des interpr\u00e9tations d&rsquo;\u00ab activit\u00e9 non habituelle \u00bb (p. ex., ouverture de certains fichiers, utilisation de services de synchronisation et connexions de dispositifs externes). Notre travail a consist\u00e9 \u00e0 <strong>s\u00e9parer les faits v\u00e9rifiables des inf\u00e9rences<\/strong>, et \u00e0 <strong>convertir une narration technique confuse en une explication solide, compr\u00e9hensible et d\u00e9fendable<\/strong> devant les tribunaux. <\/h6><h6>D\u00e8s le d\u00e9but, martinsdelima a structur\u00e9 l&rsquo;analyse avec un double objectif&nbsp;: <strong><\/strong><\/h6><h6><strong>(i) valider la preuve num\u00e9rique et son int\u00e9grit\u00e9<\/strong> et<\/h6><h6><strong>(ii) r\u00e9aliser une contre-expertise technique<\/strong> sur les rapports contraires, en soulignant express\u00e9ment <strong>l&rsquo;absence de preuve num\u00e9rique lorsqu&rsquo;elle existait<\/strong>.<\/h6><h6>Comme m\u00e9thodologie, nous avons appliqu\u00e9 une approche d&rsquo;<strong>informatique forensique tra\u00e7able et reproductible<\/strong>&nbsp;: r\u00e9vision de la <strong>copie\/image du disque<\/strong> (courriels et fichiers pertinents) et v\u00e9rification que la preuve <strong>n&rsquo;avait pas \u00e9t\u00e9 alt\u00e9r\u00e9e<\/strong> depuis son obtention et sa conservation. De plus, le rapport reprend l&rsquo;utilisation d&rsquo;<strong>outils forensiques reconnus<\/strong> et de proc\u00e9dures de clonage orient\u00e9es \u00e0 pr\u00e9server l&rsquo;int\u00e9grit\u00e9 des donn\u00e9es (outils comme <strong>EnCase, Autopsy, WinHex<\/strong> et flux de clonage avec des dispositifs forensiques). <\/h6><h6>\u00c0 partir de l\u00e0, le travail \u00ab&nbsp;extraordinaire&nbsp;\u00bb a \u00e9t\u00e9 la contre-expertise&nbsp;: nous avons identifi\u00e9 des <strong>faiblesses m\u00e9thodologiques<\/strong> et des <strong>sauts logiques<\/strong> dans les rapports r\u00e9vis\u00e9s (par exemple, <strong>ne pas analyser la politique de s\u00e9curit\u00e9<\/strong>, <strong>ne pas d\u00e9montrer l&rsquo;utilisation non autoris\u00e9e d&rsquo;informations confidentielles<\/strong>, <strong>ne pas d\u00e9montrer la suppression de documentation d&rsquo;entreprise<\/strong> et, en g\u00e9n\u00e9ral, <strong>ne pas apporter d&rsquo;indices concluants de fuite<\/strong>). Nous avons \u00e9galement clarifi\u00e9 des aspects techniques qui sont souvent confondus dans les litiges&nbsp;: <strong>suppression s\u00e9curis\u00e9e vs. outils antiforensiques<\/strong>, en expliquant que l&rsquo;objectif et la trace qu&rsquo;ils laissent sont diff\u00e9rents (et que cela est d\u00e9terminant pour \u00e9valuer correctement ce qui peut \u2014 ou non \u2014 \u00eatre inf\u00e9r\u00e9). <\/h6><h6>Le r\u00e9sultat a \u00e9t\u00e9 une pi\u00e8ce d&rsquo;expertise ax\u00e9e sur l&rsquo;essentiel&nbsp;: <strong>faits v\u00e9rifiables, explications techniques compr\u00e9hensibles et conclusions prudentes mais fermes<\/strong>, qui ont permis de <strong>r\u00e9futer techniquement des affirmations insuffisamment \u00e9tay\u00e9es<\/strong> et d&rsquo;apporter une base probatoire claire pour la proc\u00e9dure. En d&rsquo;autres termes&nbsp;: martinsdelima a transform\u00e9 un sc\u00e9nario de soup\u00e7ons et de documents techniques crois\u00e9s en <strong>un r\u00e9cit forensique solide, d\u00e9fendable et align\u00e9 sur les normes d&rsquo;expertise<\/strong>. <\/h6>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Exp\u00e9riencesExpertises informatiques Validation de la preuve num\u00e9rique et contre-expertise technique Dans cette affaire, un conflit a \u00e9t\u00e9 soulev\u00e9 dans lequel il \u00e9tait essentiel de d\u00e9terminer, avec rigueur forensique, ce qui s&rsquo;\u00e9tait r\u00e9ellement pass\u00e9 avec un \u00e9quipement d&rsquo;entreprise et s&rsquo;il existait des indices techniques suffisants d&rsquo;acc\u00e8s \u00e0 des informations sensibles, de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-templates\/template-pagebuilder-full-width.php","meta":{"footnotes":""},"class_list":["post-10558","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - 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