{"id":12373,"date":"2023-06-07T22:56:30","date_gmt":"2023-06-07T20:56:30","guid":{"rendered":"https:\/\/www.poggi-avocats.com\/?post_type=use_case&#038;p=12373"},"modified":"2026-04-07T21:31:43","modified_gmt":"2026-04-07T19:31:43","slug":"how-to-notify-a-data-breach-to-the-cnil","status":"publish","type":"cas_client","link":"https:\/\/www.poggi-avocats.com\/en\/cas_client\/comment-notifier-une-violation-de-donnees-a-la-cnil","title":{"rendered":"How do I notify the CNIL of a data breach?"},"content":{"rendered":"<div class=\"brz-root__container brz-reset-all\">\n<section id=\"ugrkjuxnopwducezxdwuhhkgmniunbwqrbzc\" class=\"brz-section brz-css-x4dVp brz-css-tDZqh\">\n<div class=\"brz-section__content brz-section--boxed brz-css-emT9q brz-css-pcs4q\" data-brz-custom-id=\"bcgmhwxlkjkcgxbqbsydsjqraaxvtiixfllr\">\n<div class=\"brz-bg\">\n<div class=\"brz-bg-image\"><\/div>\n<div class=\"brz-bg-color\"><\/div>\n<\/div>\n<div class=\"brz-container brz-css-dbGv4\">\n<div id class=\"brz-css-oqmDU brz-wrapper\">\n<div class=\"brz-rich-text brz-rich-text__custom brz-css-tNQmz\" data-brz-custom-id=\"ypgakevzqnngtwuteqiuagskhhbnkwbaynqu\">\n<div data-brz-translate-text=\"1\">\n<h1 class=\"brz-fs-xs-26 brz-tp-xs-empty brz-lh-xs-1_6 brz-ls-xs-0 brz-fw-xs-400 brz-fss-xs-px brz-text-xs-center brz-text-lg-center brz-tp-lg-empty brz-ff-red_hat_display brz-ft-google brz-fs-lg-44 brz-fss-lg-px brz-fw-lg-400 brz-ls-lg-0 brz-lh-lg-1_7 brz-tp-sm-empty brz-fs-sm-35 brz-fss-sm-px brz-fw-sm-400 brz-ls-sm-0 brz-lh-sm-1_7 brz-css-lIW2E\" data-uniq-id=\"yakvu\" data-generated-css=\"brz-css-npbif\"><span class=\"brz-capitalize-on\" style=\"opacity: 1\">How to notify a violation<\/span><\/h1>\n<h1 class=\"brz-fs-xs-26 brz-tp-xs-empty brz-lh-xs-1_6 brz-ls-xs-0 brz-fw-xs-400 brz-fss-xs-px brz-text-xs-center brz-text-lg-center brz-tp-lg-empty brz-ff-red_hat_display brz-ft-google brz-fs-lg-44 brz-fss-lg-px brz-fw-lg-400 brz-ls-lg-0 brz-lh-lg-1_7 brz-tp-sm-empty brz-fs-sm-35 brz-fss-sm-px brz-fw-sm-400 brz-ls-sm-0 brz-lh-sm-1_7 brz-css-vCNAt\" data-uniq-id=\"yakvu\" data-generated-css=\"brz-css-npbif\"><span class=\"brz-capitalize-on\" style=\"opacity: 1\">to the CNIL?<\/span><\/h1>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<section id=\"mbgongkssybcvanfhjicvnjcjehdeejcqgpz\" class=\"brz-section brz-css-x4dVp\">\n<div class=\"brz-section__content brz-section--boxed brz-css-emT9q brz-css-egAht\" data-brz-custom-id=\"mbjrmjfippvxnnbqfjhdwibhhxpcnqpaioxl\">\n<div class=\"brz-bg\">\n<div class=\"brz-bg-color\"><\/div>\n<\/div>\n<div class=\"brz-container brz-css-dbGv4\">\n<div id class=\"brz-css-oqmDU brz-css-q6BHs brz-wrapper\">\n<div class=\"brz-wp__breadcrumbs brz-css-kh46x brz-css-vhRUV\" data-brz-custom-id=\"cwikrenvfpcqrmnomwuaspdwiznjfdbgffxx\">\n<div style=\"min-height:20px\"><\/div>\n<\/div>\n<\/div>\n<div id class=\"brz-css-oqmDU brz-css-i9YiR brz-wrapper\">\n<div class=\"brz-spacer brz-css-xDsmM brz-css-fC8Xi\"><\/div>\n<\/div>\n<div id class=\"brz-css-oqmDU brz-wrapper\">\n<div class=\"brz-rich-text brz-rich-text__custom brz-css-tNQmz\" data-brz-custom-id=\"wwdshykvgjsviyybjyrazvnnliuuhqlmchxz\">\n<div data-brz-translate-text=\"1\">\n<h2 class=\"brz-tp-lg-paragraph brz-mb-lg-0 brz-css-f1HpY\" data-uniq-id=\"dqbvm\" data-generated-css=\"brz-css-evcwn\"><strong style=\"opacity: 1\">We can help you set up an internal procedure to comply with the data controller's obligation to notify the CNIL of any personal data breach within 72 hours of discovering it:<\/strong><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<div id class=\"brz-css-oqmDU brz-wrapper\">\n<div class=\"brz-rich-text brz-rich-text__custom brz-css-tNQmz\" data-brz-custom-id=\"lckeqgrucvzsukglnjyuxtzcvezxeokhemyy\">\n<div data-brz-translate-text=\"1\">\n<ul>\n<li class=\"brz-ff-red_hat_display brz-ft-google brz-fs-lg-19 brz-fss-lg-px brz-fw-lg-400 brz-ls-lg-0 brz-lh-lg-1_7 brz-tp-lg-paragraph brz-mb-lg-10 brz-bcp-color7 brz-css-xw3JA\" data-generated-css=\"brz-css-rddni\" data-uniq-id=\"hotyy\"><span class=\"brz-cp-color7\">facilitating the escalation of information about a security incident to the appropriate people (data protection officer \/ security manager \/ legal department \/ senior management, etc.),<\/span><\/li>\n<li class=\"brz-ff-red_hat_display brz-ft-google brz-fs-lg-19 brz-fss-lg-px brz-fw-lg-400 brz-ls-lg-0 brz-lh-lg-1_7 brz-tp-lg-paragraph brz-mb-lg-10 brz-bcp-color7 brz-css-xakXh\" data-generated-css=\"brz-css-thpdd\" data-uniq-id=\"cjugh\"><span class=\"brz-cp-color7\">determine whether the security incident is a data breach based on its impact on the availability, integrity or confidentiality of personal data,<\/span><\/li>\n<li class=\"brz-ff-red_hat_display brz-ft-google brz-fs-lg-19 brz-fss-lg-px brz-fw-lg-400 brz-ls-lg-0 brz-lh-lg-2_2 brz-tp-lg-paragraph brz-mb-lg-10 brz-bcp-color7 brz-css-lF8Nm\" data-generated-css=\"brz-css-hhcad\" data-uniq-id=\"ugeuc\"><span class=\"brz-cp-color7\">assess the risk presented by the data breach to determine whether it should be notified to the CNIL and\/or communicated to the persons concerned,<\/span><\/li>\n<li class=\"brz-ff-red_hat_display brz-ft-google brz-fs-lg-19 brz-fss-lg-px brz-fw-lg-400 brz-ls-lg-0 brz-lh-lg-2_2 brz-tp-lg-paragraph brz-bcp-color7 brz-css-oDBmJ\" data-generated-css=\"brz-css-nvufh\" data-uniq-id=\"zscxc\"><span class=\"brz-cp-color7\">transform the RGPD's documentation obligations into an opportunity to strengthen the company's level of security.<\/span><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<div id class=\"brz-css-oqmDU brz-css-i9YiR brz-wrapper\">\n<div class=\"brz-spacer brz-css-xDsmM brz-css-nPolP\"><\/div>\n<\/div>\n<div class=\"brz-row__container brz-css-j9aK1\" data-brz-custom-id=\"vestdraevyrwkeqygfsojkxdfafesdnzsxga\">\n<div class=\"brz-bg\"><\/div>\n<div class=\"brz-row brz-css-u0AIf\">\n<div class=\"brz-columns brz-css-cICN6 brz-css-gxUUr\" 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CASE<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div id class=\"brz-css-oqmDU brz-css-qrGoG brz-wrapper\">\n<div class=\"brz-icon-text brz-css-fyWKb brz-css-l3uM5\" data-brz-custom-id=\"hfrczyhxdejunygrgplducugjkbopvuneujo\">\n<div class=\"brz-icon__container\" data-brz-custom-id=\"ljbgzxuocqswwzedridgqnmddplqyetvdqul\"><span class=\"brz-icon brz-span brz-css-fZ6Rr brz-css-gqMfT\"><\/span><\/div>\n<div class=\"brz-text-btn\">\n<div class=\"brz-rich-text brz-rich-text__custom brz-css-tNQmz\" data-brz-custom-id=\"pcnpzqrpyhzwtgdyqekgyyanpxwmvjvbmdzo\">\n<div data-brz-translate-text=\"1\">\n<p class=\"brz-fs-lg-15 brz-ft-google brz-ff-red_hat_display brz-tp-lg-empty brz-lh-lg-1_7 brz-ls-lg-0 brz-fw-lg-400 brz-fss-lg-px brz-css-wDG9N\" data-generated-css=\"brz-css-zfdev\" data-uniq-id=\"bxtnk\"><span class=\"brz-cp-color7\">View all Poggi Avovats IT case studies<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div id class=\"brz-css-oqmDU 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