{"id":139497,"date":"2019-04-24T14:00:02","date_gmt":"2019-04-24T13:00:02","guid":{"rendered":"https:\/\/www.stormshield.com\/?p=139497"},"modified":"2024-03-22T15:21:14","modified_gmt":"2024-03-22T14:21:14","slug":"dsi-un-metier-en-pleine-evolution-cyber","status":"publish","type":"post","link":"https:\/\/www.stormshield.com\/fr\/actus\/dsi-un-metier-en-pleine-evolution-cyber\/","title":{"rendered":"DSI : un m\u00e9tier en pleine \u00e9volution cyber&nbsp;?"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-139500 size-full\" title=\"Image utilis\u00e9e sous licence de Shutterstock.com\" src=\"https:\/\/www.stormshield.com\/wp-content\/uploads\/shutterstock_551041846-e1618490069730.jpg\" alt=\"Cybers\u00e9curit\u00e9 et \u00e9volutions du m\u00e9tier de la DSI | Stormshield\" width=\"800\" height=\"309\" \/><\/p>\n<p><strong>Longtemps consid\u00e9r\u00e9e comme un simple fournisseur de services IT pour les p\u00f4les m\u00e9tiers, la DSI est aujourd\u2019hui aux avant-postes de la transformation num\u00e9rique des entreprises. Face \u00e0 l\u2019hyperconnexion, charge \u00e0 elle d\u00e9sormais de conseiller, d\u2019\u00e9vang\u00e9liser et d\u2019insuffler une culture d\u2019hygi\u00e8ne informatique \u00e0 tous les \u00e9tages. Un r\u00f4le central renforc\u00e9 par la mont\u00e9e des enjeux et des risques de cybers\u00e9curit\u00e9.<\/strong><\/p>\n<p>Allumer votre ordinateur au travail, vous connecter \u00e0 internet, sauvegarder vos documents\u2026 Tous ces petits gestes du quotidien seraient impossibles sans la Direction des Syst\u00e8mes d\u2019Information (DSI) de votre entreprise. En charge du parc informatique de l\u2019entreprise, la DSI s\u2019occupe de l\u2019ensemble des mat\u00e9riels et des logiciels qui le compose, qu\u2019il s\u2019agisse des applications, des donn\u00e9es et des infrastructures n\u00e9cessaires au stockage, aux sauvegardes, aux impressions ou encore aux t\u00e9l\u00e9communications. Bref, si vous pouvez travailler et lire cet article au bureau aujourd\u2019hui, c\u2019est gr\u00e2ce \u00e0 votre DSI.<\/p>\n<p>&nbsp;<\/p>\n<h2>DSI, un r\u00f4le strat\u00e9gique<\/h2>\n<p>La DSI assure donc l\u2019interface entre les hommes et les machines. Longtemps consid\u00e9r\u00e9e comme un simple fournisseur de services IT pour les p\u00f4les m\u00e9tiers, la DSI est aujourd\u2019hui aux avant-postes de <a href=\"https:\/\/www.stormshield.com\/fr\/ressourcescenter\/transformation-numerique-entreprises-et-la-securite\/\">la transformation num\u00e9rique des entreprises<\/a>, pouss\u00e9e par les nouveaux usages et les nouvelles technologies. R\u00e9sultat : ce poste-cl\u00e9, \u00e0 la crois\u00e9e de la technique, de la gestion de projet, du management, de la s\u00e9curit\u00e9 et de la strat\u00e9gie, a su \u00e9voluer pour int\u00e9grer de nouvelles missions, et de nouvelles comp\u00e9tences. \u00ab <em>Ce sont moins des comp\u00e9tences techniques que des capacit\u00e9s \u00e0 communiquer et \u00e0 \u00e9couter<\/em>, note <strong>Franck Nielacny<\/strong>, DSI chez Stormshield. <em>Il faut \u00eatre capable de discuter facilement avec un comptable, un logisticien, un DRH... de conna\u00eetre les m\u00e9tiers et leur vocabulaire. Bref, d\u2019\u00eatre dans un esprit de business partner. C\u2019est fondamental car les directions m\u00e9tier sont de plus en plus impliqu\u00e9es pour les choix IT.<\/em> \u00bb<\/p>\n<blockquote><p><em>Ce sont moins des comp\u00e9tences techniques que des capacit\u00e9s \u00e0 communiquer et \u00e0 \u00e9couter.<\/em><\/p>\n<pre><strong>Franck Nielacny,<\/strong> DSI chez Stormshield<\/pre>\n<\/blockquote>\n<p><strong>D\u2019ex\u00e9cutant op\u00e9rationnel, la DSI a pivot\u00e9 vers un poste strat\u00e9gique d\u2019accompagnement des grands projets de l\u2019entreprise.<\/strong> \u00ab <em>De plus en plus, on attend du DSI qu\u2019il soit au courant des \u00e9volutions technologiques, qu\u2019il anticipe le besoin exprim\u00e9 par les directions m\u00e9tier et qu\u2019il soit capable de coordonner les deux avec coh\u00e9rence<\/em> \u00bb, souligne Franck Nielacny. \u00ab <em>Avant, l\u2019IT devait s\u2019aligner sur la strat\u00e9gie business. Avec la transformation num\u00e9rique, c\u2019est l\u2019inverse qui se produit<\/em> \u00bb, analyse de son c\u00f4t\u00e9 Fr\u00e9d\u00e9ric Lau, directeur de mission au Cigref, <a href=\"https:\/\/www.silicon.fr\/dossiers\/emploi-it-2019-les-nouveaux-metiers-de-la-dsi\" target=\"_blank\" rel=\"noopener noreferrer\">cit\u00e9 ici<\/a>.<\/p>\n<p>Aujourd\u2019hui, la DSI pr\u00e9pare l\u2019entreprise de demain et absorbe progressivement des enjeux qui vont au-del\u00e0 de l\u2019IT traditionnelle d\u2019interface homme-machine. Les enjeux grandissants de cybers\u00e9curit\u00e9 des entreprises imposent autant un \u00e9quipement en mati\u00e8re de solutions de s\u00e9curit\u00e9 qu\u2019une prise de conscience des collaborateurs. La DSI a d\u00e9sormais la charge de conseiller, d\u2019\u00e9vang\u00e9liser et d\u2019insuffler une culture d\u2019hygi\u00e8ne informatique \u00e0 tous les \u00e9tages de l\u2019entreprise. <strong>Ce qui suppose une bonne dose de p\u00e9dagogie.<\/strong> \u00ab <em>Chez Stormshield par exemple, <a href=\"https:\/\/www.stormshield.com\/fr\/nous-rejoindre\/\">tous les collaborateurs<\/a> ont une forte culture du num\u00e9rique et une bonne sensibilit\u00e9 \u00e0 la s\u00e9curit\u00e9. Mais on n\u2019est jamais \u00e0 l\u2019abri d\u2019un accident ou d\u2019une erreur, donc il y a toujours des actions de p\u00e9dagogie \u00e0 mener, en collaboration avec le RSSI et les RH<\/em> \u00bb, confirme Franck Nielacny.<\/p>\n<p>DSI du CEA (Commissariat \u00e0 l'\u00c9nergie Atomique et aux \u00e9nergies alternatives), <strong>Louis Arrivet<\/strong> mise beaucoup sur la p\u00e9dagogie. \u00ab <em>Les chercheurs sont une population particuli\u00e8re : c\u2019est leur m\u00e9tier de farfouiller, de chercher, de d\u00e9velopper et <a href=\"https:\/\/www.stormshield.com\/fr\/actus\/le-shadow-it-un-veritable-defi-pour-les-dsi\/\">d\u2019innover<\/a>. Du coup ils d\u00e9ploient parfois des protocoles exotiques, pas toujours \u00e0 int\u00e9grer dans un SI s\u00e9curis\u00e9. J\u2019ai des \u00e9quipes dont le boulot consiste \u00e0 faire de la p\u00e9dagogie aupr\u00e8s de tout le CEA, tout le temps<\/em> \u00bb, confie-t-il. <strong>Car avec la mont\u00e9e des enjeux de cybers\u00e9curit\u00e9, la DSI est en premi\u00e8re ligne pour assurer la protection de son entreprise.<\/strong><\/p>\n<p>&nbsp;<\/p>\n<h2>La cybers\u00e9curit\u00e9, une pr\u00e9occupation quotidienne des DSI<\/h2>\n<p>Quand on parle de cybers\u00e9curit\u00e9, on y associe donc attaques d\u2019envergure, malwares destructeurs et failles de s\u00e9curit\u00e9 m\u00e9diatiques. Mais ce n\u2019est que la partie \u00e9merg\u00e9e de l\u2019iceberg ; pour une DSI, <strong>la cybers\u00e9curit\u00e9 se joue sur tout ce que l\u2019on ne voit pas<\/strong>. \u00ab <em>La cybers\u00e9curit\u00e9 concerne tous les collaborateurs et tous les services de l\u2019entreprise, on la traite de moins en moins en silo<\/em>, souligne Franck Nielacny. <em>C\u2019est une pr\u00e9occupation quotidienne qui engendre des actions de surveillance, de contr\u00f4le et de mise \u00e0 jour des dispositifs pour prot\u00e9ger l\u2019entreprise. \u00c7a fait partie du quotidien de toute DSI.<\/em> \u00bb<\/p>\n<blockquote><p><em>Entre un quart et un tiers des actions quotidiennes sont consacr\u00e9es \u00e0 la cybers\u00e9curit\u00e9.<\/em><\/p>\n<pre><strong>Louis Arrivet,<\/strong> DSI du CEA<\/pre>\n<\/blockquote>\n<p>Louis Arrivet \u00e9value entre un quart et un tiers le nombre d\u2019actions quotidiennes consacr\u00e9es \u00e0 la cybers\u00e9curit\u00e9. \u00ab <em>Tous nos projets ont une dimension cybers\u00e9curit\u00e9 \u00e0 un moment ou \u00e0 un autre, quelle que soit l\u2019application que l\u2019on d\u00e9ploie. Les inputs de cybers\u00e9curit\u00e9 sont int\u00e9gr\u00e9s dans nos r\u00e9flexions, avant la phase de conception. Lorsque j\u2019\u00e9change avec une direction sur un besoin, on \u00e9voque d\u00e9j\u00e0 les questions de s\u00e9curit\u00e9 alors que nous sommes au stade le plus amont du projet.<\/em> \u00bb Et chaque DSI se sait attendu sur ces questions. \u00ab <em>La part de la cybers\u00e9curit\u00e9 dans les m\u00e9tiers de la DSI augmente de fa\u00e7on exponentielle. Aux \u00c9tats-Unis, les experts estiment qu\u2019il manque d\u00e9j\u00e0 200 000 experts cybers\u00e9curit\u00e9. Dans 10 ans, ce sera 500 000<\/em> \u00bb, souligne <strong>Emmanuel Dupont<\/strong>, Global Chief Security Officer chez oXya.<\/p>\n<p>&nbsp;<\/p>\n<h2>SaaS et nouvelles technologies, challenges des DSI<\/h2>\n<p>Mais le changement de paradigme de la DSI concernant la s\u00e9curit\u00e9 concerne aussi l\u2019ext\u00e9rieur de l\u2019entreprise. DSI depuis 17 ans, Louis Arrivet a observ\u00e9 cette \u00e9volution \u00ab <em>Il y a 20 ans, on \u00e9tait dans la s\u00e9curit\u00e9 p\u00e9rim\u00e9trique. On parlait de l\u2019objet informatique. On concevait une forteresse et on pensait qu\u2019en mettant des murailles, les gens ne rentreraient pas. D\u00e9sormais, on est data centrics : on a compris que ce qui compte, ce n\u2019est pas le syst\u00e8me d\u2019information, mais l\u2019information elle-m\u00eame.<\/em> \u00bb Fini le d\u00e9veloppement sur serveur chez soi, \u201cen dur\u201d. Aujourd\u2019hui, on virtualise, on externalise, on se plie \u00e0 la mode SaaS (Software as a Service), un peu pouss\u00e9 il faut le dire par les nouveaux usages. Bref, on s\u2019ouvre. Mais pas \u00e0 n\u2019importe quelle condition. <strong>La DSI est aussi la garante de la s\u00e9curit\u00e9 des informations de l\u2019entreprise trait\u00e9es en externe.<\/strong> D\u00e9l\u00e9guer la ma\u00eetrise technique d\u2019un syst\u00e8me en mode SaaS, oui. D\u00e9l\u00e9guer la ma\u00eetrise de la protection des informations de l\u2019entreprise stock\u00e9es dans ce syst\u00e8me, hors de question.<\/p>\n<p>\u00ab <em>On est dans un domaine o\u00f9 tout bouge tr\u00e8s vite, de facto le m\u00e9tier change, c\u2019est s\u00fbr. Mais les fondamentaux ne changent pas<\/em>, soutient Louis Arrivet. <em>Il y a 20 ans comme aujourd\u2019hui, le r\u00f4le de la DSI est d\u2019avoir la ma\u00eetrise du syst\u00e8me d\u2019information de son entreprise. Ce sera pareil demain, m\u00eame si les technologies changent.<\/em> \u00bb<\/p>\n<p>&nbsp;<\/p>\n<h2>Et demain ?<\/h2>\n<p>Blockchain, IoT, <em>cloud computing<\/em>, <em>serverless computing<\/em>, <em>machine learning<\/em>\u2026 Demain, le terrain de jeu cyber de la DSI changera rapidement. \u00ab <em>\u00c0 tr\u00e8s court terme, le d\u00e9fi est celui du <a href=\"https:\/\/www.stormshield.com\/fr\/actus\/faut-il-avoir-peur-du-grand-mechant-cloud\/\">cloud<\/a> : les DSI doivent s\u2019assurer que les solutions choisies sont fiables et compatibles avec les besoins des utilisateurs, mais aussi suffisamment s\u00e9curis\u00e9es et qu\u2019elles s\u2019int\u00e8grent dans le syst\u00e8me d\u2019information<\/em> \u00bb, note Franck Nielacny.<\/p>\n<p>\u00ab <em>Mon sentiment, c\u2019est que les entreprises vont pousser les fournisseurs de SaaS \u00e0 h\u00e9berger les infrastructures et le logiciel chez eux, <strong>mais en faisant en sorte que les donn\u00e9es restent dans l\u2019entreprise<\/strong><\/em> \u00bb, analyse de son c\u00f4t\u00e9 Louis Arrivet. \u00c0 d\u00e9faut, les fournisseurs devront apporter l\u2019absolue garantie que les entreprises conservent la ma\u00eetrise de leurs informations, qu\u2019elles pourront d\u00e9cider elles-m\u00eames de ce qui est sensible ou pas, et ce qu\u2019elles veulent partager ou pas. \u00ab <em>Ce n\u2019est pas parce qu\u2019on externalise qu\u2019il faut perdre la compr\u00e9hension de ces m\u00e9canismes et leur ma\u00eetrise<\/em>, poursuit-il. <em>Si on fait \u00e7a, on s\u2019expose dangereusement. Une entreprise qui perd la ma\u00eetrise de son information est en grand danger. Tout chef d\u2019entreprise aura encore besoin demain d\u2019un DSI capable de lui garantir cette ma\u00eetrise.<\/em> \u00bb<\/p>\n<p><strong>Idem avec l\u2019intelligence artificielle.<\/strong> \u00ab <em>Avec l\u2019apparition d\u2019outils bas\u00e9s sur l\u2019IA et le machine learning, on passe d\u2019un mod\u00e8le de raisonnement num\u00e9rique \u00e0 un mod\u00e8le de raisonnement \u00ab humain \u00bb par analogie. L\u2019IA va permettre une d\u00e9tection plus fine des anomalies, elle pourra inventer des sc\u00e9narios pour r\u00e9pondre aux menaces<\/em> \u00bb, juge Emmanuel Dupont. Et permettre \u00e0 la DSI d\u2019anticiper. \u00ab <em>Les DSI ont toujours un petit temps de retard. On fait souvent du r\u00e9actif. L\u2019IA pourrait permettre de palier \u00e0 cela, <\/em>poursuit Emmanuel Dupont. <em>Mais on peut aussi envisager des attaques \u00e0 base d\u2019IA pour d\u00e9jouer les syst\u00e8mes bas\u00e9s sur l\u2019IA<\/em> \u00bb. Si l\u2019IA devrait rendre l\u2019IT plus efficace et plus facile, elle n\u2019est pas (encore) pr\u00eate \u00e0 remplacer la DSI. \u00ab <em>Son r\u00f4le restera de faire en sorte de relier d\u2019un c\u00f4t\u00e9 un besoin m\u00e9tier (comme vendre \/ soigner \/ produire) \u00e0 un panel de technologies mis \u00e0 la disposition des march\u00e9s et des entreprises<\/em>, conclut Franck Nielacny. <em>Il faudra toujours un humain pour concilier les deux.<\/em> \u00bb<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Longtemps consid\u00e9r\u00e9e comme un simple fournisseur de services IT pour les p\u00f4les m\u00e9tiers, la DSI est aujourd\u2019hui aux avant-postes de la transformation num\u00e9rique des entreprises. Face \u00e0 l\u2019hyperconnexion, charge \u00e0 elle d\u00e9sormais de conseiller, d\u2019\u00e9vang\u00e9liser et d\u2019insuffler une culture d\u2019hygi\u00e8ne informatique \u00e0 tous les \u00e9tages&#8230;.<\/p>\n","protected":false},"author":31,"featured_media":139500,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1612],"tags":[4368],"business_size":[682,683],"industry":[695,691,693,699,697],"help_mefind":[],"features":[],"type_security":[754,756,758],"maintenance":[],"offer":[],"administration_tools":[],"cloud_offers":[],"listing_product":[],"class_list":["post-139497","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-veille-securite","tag-la-cybersecurite-par-stormshield","business_size-eti","business_size-grande-entreprise","industry-administrations-publiques","industry-defense-et-organisations-militaires","industry-education-et-enseignement","industry-industrie-fr","industry-sante-et-etablissements-de-soin","type_security-donnees","type_security-postes-et-serveurs","type_security-reseaux"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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