{"id":17860,"date":"2025-12-08T16:48:49","date_gmt":"2025-12-08T15:48:49","guid":{"rendered":"https:\/\/cyberschool.univ-rennes.fr\/?p=17860"},"modified":"2026-03-12T14:41:30","modified_gmt":"2026-03-12T13:41:30","slug":"cyber-resilience-crises-et-risques-systemiques-que-retenir-de-notre-3eme-jeudi-cyber","status":"publish","type":"post","link":"https:\/\/cyberschool.univ-rennes.fr\/en\/cyber-resilience-crises-et-risques-systemiques-que-retenir-de-notre-3eme-jeudi-cyber\/","title":{"rendered":"Cyber Resilience, Crises and Systemic Risks: Key Takeaways from Our 3rd Cyber Thursday"},"content":{"rendered":"\n<p>During the latest edition of <em>Cyber Thursdays<\/em>, cyber crises were analysed from every angle: <strong>threat identification, impact assessment, and operational response strategies<\/strong>.<\/p>\n\n\n\n<section class=\"sliderImg\">\n    <div class=\"contain-slider\">\n            <div class=\"sliderImgs\">\n\n                \n                    <div class=\"slide\">\n                        <picture>\n                            <source\n                            type=\"image\/webp\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-3-min-scaled.webp, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-3-min-scaled@2x.webp 2x\"\n                            media=\"(max-width: 480px)\"\n                            >\n                            <source\n                            type=\"image\/webp\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-3-min-scaled.webp, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-3-min-scaled@2x.webp 2x\"\n                            media=\"(min-width: 1280px)\"\n                            >\n                            <source\n                            type=\"image\/jpeg\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-3-min-scaled.jpg, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-3-min-scaled@2x.jpg 2x\"\n                            media=\"(max-width: 480px)\"\n                            >\n                            <source\n                            type=\"image\/jpeg\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-3-min-scaled.jpg, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-3-min-scaled@2x.jpg 2x\"\n                            media=\"(min-width: 1280px)\"\n                            >\n                            <img decoding=\"async\" src=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-3-min-scaled.jpg\" loading=\"lazy\" alt=\"Participants au jeudi cyber\" \/>\n                        <\/picture>\n                    <\/div>\n\n                \n                    <div class=\"slide\">\n                        <picture>\n                            <source\n                            type=\"image\/webp\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-13-min-scaled.webp, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-13-min-scaled@2x.webp 2x\"\n                            media=\"(max-width: 480px)\"\n                            >\n                            <source\n                            type=\"image\/webp\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-13-min-scaled.webp, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-13-min-scaled@2x.webp 2x\"\n                            media=\"(min-width: 1280px)\"\n                            >\n                            <source\n                            type=\"image\/jpeg\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-13-min-scaled.jpg, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-13-min-scaled@2x.jpg 2x\"\n                            media=\"(max-width: 480px)\"\n                            >\n                            <source\n                            type=\"image\/jpeg\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-13-min-scaled.jpg, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-13-min-scaled@2x.jpg 2x\"\n                            media=\"(min-width: 1280px)\"\n                            >\n                            <img decoding=\"async\" src=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-13-min-scaled.jpg\" loading=\"lazy\" alt=\"Intervention de Guillaume Ch\u00e9reau\" \/>\n                        <\/picture>\n                    <\/div>\n\n                \n                    <div class=\"slide\">\n                        <picture>\n                            <source\n                            type=\"image\/webp\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-14-min-scaled.webp, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-14-min-scaled@2x.webp 2x\"\n                            media=\"(max-width: 480px)\"\n                            >\n                            <source\n                            type=\"image\/webp\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-14-min-scaled.webp, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-14-min-scaled@2x.webp 2x\"\n                            media=\"(min-width: 1280px)\"\n                            >\n                            <source\n                            type=\"image\/jpeg\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-14-min-scaled.jpg, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-14-min-scaled@2x.jpg 2x\"\n                            media=\"(max-width: 480px)\"\n                            >\n                            <source\n                            type=\"image\/jpeg\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-14-min-scaled.jpg, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-14-min-scaled@2x.jpg 2x\"\n                            media=\"(min-width: 1280px)\"\n                            >\n                            <img decoding=\"async\" src=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-14-min-scaled.jpg\" loading=\"lazy\" alt=\"Intervenants jeudi cyber\" \/>\n                        <\/picture>\n                    <\/div>\n\n                \n                    <div class=\"slide\">\n                        <picture>\n                            <source\n                            type=\"image\/webp\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-9-min-scaled.webp, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-9-min-scaled@2x.webp 2x\"\n                            media=\"(max-width: 480px)\"\n                            >\n                            <source\n                            type=\"image\/webp\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-9-min-scaled.webp, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-9-min-scaled@2x.webp 2x\"\n                            media=\"(min-width: 1280px)\"\n                            >\n                            <source\n                            type=\"image\/jpeg\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-9-min-scaled.jpg, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-9-min-scaled@2x.jpg 2x\"\n                            media=\"(max-width: 480px)\"\n                            >\n                            <source\n                            type=\"image\/jpeg\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-9-min-scaled.jpg, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-9-min-scaled@2x.jpg 2x\"\n                            media=\"(min-width: 1280px)\"\n                            >\n                            <img decoding=\"async\" src=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-9-min-scaled.jpg\" loading=\"lazy\" alt=\"Discussions lors du cocktail\" \/>\n                        <\/picture>\n                    <\/div>\n\n                \n                    <div class=\"slide\">\n                        <picture>\n                            <source\n                            type=\"image\/webp\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-7-min-scaled.webp, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-7-min-scaled@2x.webp 2x\"\n                            media=\"(max-width: 480px)\"\n                            >\n                            <source\n                            type=\"image\/webp\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-7-min-scaled.webp, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-7-min-scaled@2x.webp 2x\"\n                            media=\"(min-width: 1280px)\"\n                            >\n                            <source\n                            type=\"image\/jpeg\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-7-min-scaled.jpg, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-7-min-scaled@2x.jpg 2x\"\n                            media=\"(max-width: 480px)\"\n                            >\n                            <source\n                            type=\"image\/jpeg\"\n                            srcset=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-7-min-scaled.jpg, https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-7-min-scaled@2x.jpg 2x\"\n                            media=\"(min-width: 1280px)\"\n                            >\n                            <img decoding=\"async\" src=\"https:\/\/cyberschool.univ-rennes.fr\/app\/uploads\/2025\/12\/jeudi-cyber-3-7-min-scaled.jpg\" loading=\"lazy\" alt=\"Discussions lors du cocktail\" \/>\n                        <\/picture>\n                    <\/div>\n\n                            <\/div>\n\n\n\n\n    <\/div>\n\n    <script>    \n        jQuery('.sliderImgs').slick({\n            infinite: true\n        });\n\n    <\/script>\n\n<\/section>\n\n\n\n<!--more-->\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Understanding the Evolution of Cyber Resilience<\/strong><\/h2>\n\n\n\n<p>The evening began with a keynote by <strong>Guillaume Ch\u00e9reau (<a href=\"https:\/\/alcyconie.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Alcyconie<\/a>)<\/strong>, who traced a brief <strong>history of resilience<\/strong>. He revisited significant events, from the <strong>WannaCry <\/strong>attack in 2017, which revealed the first signs of vulnerability, to recent incidents affecting <strong>CrowdStrike <\/strong>and <strong>Jaguar Land Rover<\/strong>, highlighting new cybersecurity challenges. The Jaguar attack alone even shaved off part of the UK\u2019s September GDP.<\/p>\n\n\n\n<p>Guillaume also emphasised <strong>progress made in protection, detection, and incident response<\/strong>, underlining the need to anticipate threats and strengthen organisational resilience.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Systemic Risks and Collective Resilience<\/strong><\/h2>\n\n\n\n<p>Following his keynote, Guillaume Ch\u00e9reau was joined by <strong>Gwenn Feunteun (<a href=\"https:\/\/www.acceis.fr\/\" target=\"_blank\" rel=\"noreferrer noopener\">ACCEIS<\/a>)<\/strong>, <strong>Wilfried Thebault (<a href=\"https:\/\/nestle-nespresso.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Nestl\u00e9 Nespresso SA<\/a>)<\/strong> et <strong>Ga\u00ebl Musquet (Hackers Against Natural Disasters)<\/strong> for a highly instructive panel discussion.<\/p>\n\n\n\n<p>The speakers highlighted several key points:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>The need to consider a broad attack surface <\/strong>(systems, applications, humans) when anticipating threats.<\/li>\n\n\n\n<li><strong>Cyber risks are multiple and systemic<\/strong>: protecting one\u2019s own systems is not enough; interdependencies with other actors (suppliers, partners, etc.) must also be taken into account.<\/li>\n\n\n\n<li><strong>A crisis is also a human trauma<\/strong>, causing stress, panic, and lasting psychological effects.<\/li>\n\n\n\n<li>Responses vary depending on company size and how different functions perceive risk (management, administrative staff, production, business units\u2026), but <strong>the consequences of an attack can be equally critical<\/strong>.<\/li>\n\n\n\n<li><strong>Cybersecurity and data protection regulations contribute effectively to risk reduction.<\/strong><\/li>\n\n\n\n<li><strong>Autonomy in degraded conditions is a major issue<\/strong>: it allows an organisation to continue operating and responding even when primary infrastructures are unavailable.<\/li>\n\n\n\n<li>Above all, the importance of <strong>fostering awareness, training, and sensitising all business functions <\/strong>to enhance resilience.<\/li>\n<\/ul>\n\n\n\n<p>The speakers reminded the audience that these issues affect all of us: continuity of healthcare, business operations, consumer trust\u2026 <strong>Behind every averted crisis lies the protection of a part of our daily lives<\/strong>.<\/p>\n\n\n\n<p>The <em>Cyber Thursday <\/em>concluded with a networking cocktail, giving students the opportunity to ask questions and engage directly with the experts in a spirit of sharing and conviviality.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>During the latest edition of Cyber Thursdays, cyber crises were analysed from every angle: threat identification, impact assessment, and operational response strategies.<\/p>\n","protected":false},"author":8,"featured_media":17861,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.13 - 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