{"id":38295,"date":"2021-07-01T08:02:28","date_gmt":"2021-07-01T15:02:28","guid":{"rendered":"https:\/\/x-cirasync.com\/?p=38295"},"modified":"2026-03-18T07:26:44","modified_gmt":"2026-03-18T14:26:44","slug":"contactmanagementsolutions","status":"publish","type":"post","link":"https:\/\/cirasync.com\/fr\/articles-du-blog\/gestion-des-contacts\/contactmanagementsolutions\/","title":{"rendered":"Un million de raisons de NE PAS utiliser les solutions gratuites de gestion des contacts"},"content":{"rendered":"<p>Un million d&rsquo;utilisateurs de Gmail sont d&rsquo;accord sur ce point : lorsque vous utilisez un compte gratuit, quelqu&rsquo;un d&rsquo;autre finira par l&rsquo;utiliser <a href=\"https:\/\/www.forbes.com\/sites\/thomasbrewster\/2017\/05\/03\/massive-google-gmail-phish-many-victims\/#7d8a0c142a1b\" target=\"_blank\" rel=\"noopener noreferrer\">\u00e9galement<\/a>. R\u00e9cemment, plus de 1 000 000 de comptes et de listes de contacts Gmail ont \u00e9t\u00e9 pirat\u00e9s via une escroquerie d&rsquo;hame\u00e7onnage (phishing) unique dans laquelle les utilisateurs ont \u00e9t\u00e9 amen\u00e9s \u00e0 ouvrir un document de lecteur partag\u00e9 \u00e0 partir de ce qui semblait \u00eatre une source fiable.<\/p>\n<p>Une fois le document en question ouvert, le pirate a pu acc\u00e9der \u00e0 la fois aux documents et aux contacts de leurs victimes, puis \u00e0 envoyer des e-mails \u00e0 toutes les personnes figurant sur leur liste. Cela a rapidement fait boule de neige, passant de quelques utilisateurs \u00e0 plus d&rsquo;un million.<\/p>\n<p>Les informations personnelles d&rsquo;innombrables utilisateurs ont \u00e9t\u00e9 compromises &#8211; le montant total des dommages reste \u00e0 d\u00e9terminer. cependant,<b><i> <\/i><\/b>il y a une le\u00e7on qui a \u00e9t\u00e9 tir\u00e9e de tout cela : gratuit n&rsquo;est pas toujours mieux. La meilleure fa\u00e7on de g\u00e9rer vos informations de contact est d&rsquo;utiliser un service s\u00e9curis\u00e9 (et tr\u00e8s probablement payant). Pour toute entreprise, une solution sup\u00e9rieure sera Microsoft Exchange ou Office 365.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Existe-t-il_une_meilleure_solution\"><\/span>Existe-t-il une meilleure solution ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Actuellement, Microsoft utilise un certain nombre de mesures pour s&rsquo;assurer que chaque e-mail et pi\u00e8ce jointe envoy\u00e9 entre utilisateurs dispose du plus haut niveau de s\u00e9curit\u00e9 possible. Au cours des derni\u00e8res ann\u00e9es, Microsoft <a href=\"https:\/\/www.zdnet.com\/article\/now-microsoft-office-365-tackles-fake-ceo-email-spoofing-attacks\/\" target=\"_blank\" rel=\"noopener noreferrer\">a am\u00e9lior\u00e9 de pr\u00e8s de 500%<\/a> sa capacit\u00e9 \u00e0 d\u00e9tecter les e-mails et les adresses contrefaits. Using a combination of data, powerful authentication checks, and reputation filters for Office 365, Microsoft has greatly reduced the success of phishing and other malicious attacks. Leur nouveau scanner de pi\u00e8ces jointes, appel\u00e9 Dynamic Delivery of Safe Attachments, capture les pi\u00e8ces jointes suspectes et les maintient dans des zones de quarantaine pendant qu&rsquo;il recherche les logiciels malveillants et autres ex\u00e9cutables nuisibles, garantissant ainsi la s\u00e9curit\u00e9 des donn\u00e9es des utilisateurs.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Et_les_utilisateurs_prives\"><\/span>Et les utilisateurs priv\u00e9s ?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Si vous \u00eates un particulier et que vous n&rsquo;\u00eates pas dispos\u00e9 \u00e0 payer pour un service de messagerie (et vraiment, pourquoi devriez-vous le faire ?), vous pouvez prendre un certain nombre de mesures pour vous assurer de ne pas \u00eatre victime d&rsquo;une telle attaque.<\/p>\n<ol>\n<li>N&rsquo;ouvrez les pi\u00e8ces jointes qu&rsquo;apr\u00e8s avoir pris les mesures suivantes :<\/li>\n<\/ol>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Si l&rsquo;objet ou le corps d&rsquo;un e-mail semble \u00e9trange, ARR\u00caTEZ et relisez l&rsquo;e-mail.<\/li>\n<li>Ce message provient-il clairement d&rsquo;une conversation pr\u00e9c\u00e9dente ? Ou con\u00e7u pour ressembler \u00e0 une ancienne conversation.<\/li>\n<li>Attention, m\u00eame si vous reconnaissez l&rsquo;exp\u00e9diteur, il peut s&rsquo;agir d&rsquo;un imposteur.<\/li>\n<li>V\u00e9rifiez et rev\u00e9rifiez tous les liens ou pi\u00e8ces jointes pour le moindre soup\u00e7on d&rsquo;\u00e9tranget\u00e9 ou de confusion.<\/li>\n<li>Aidez tous vos coll\u00e8gues et amis en cr\u00e9ant des messages avec un sujet bien con\u00e7u et descriptif.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ol start=\"2\">\n<li>Soyez TR\u00c8S critique vis-\u00e0-vis de tout lien hypertexte.<\/li>\n<li>Soyez tr\u00e8s critique vis-\u00e0-vis des images qui peuvent \u00e9galement contenir des hyperliens.<\/li>\n<li>Si vous avez l&rsquo;impression d&rsquo;avoir \u00e9t\u00e9 pirat\u00e9, vous l&rsquo;avez peut-\u00eatre \u00e9t\u00e9. Demandez de l&rsquo;aide \u00e0 quelqu&rsquo;un.<\/li>\n<li>Si vous \u00eates invit\u00e9 \u00e0 vous connecter \u00e0 tout moment, soyez inquiet, c&rsquo;est un \u00e9norme drapeau rouge. Arr\u00eatez-vous et jetez votre ordinateur par la fen\u00eatre.<\/li>\n<\/ol>\n<h2><span class=\"ez-toc-section\" id=\"More_Tales_From_Tech_Support\"><\/span>More Tales From Tech Support<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><a href=\"\/support\/contact-sync\/how-to-sync-hubspot-to-every-office-365-mailbox-in-your-company\/\">Comment synchroniser Hubspot avec chaque bo\u00eete aux lettres Office 365 de votre entreprise<\/a><\/li>\n<li><a href=\"https:\/\/cirasync.com\/fr\/articles-du-blog\/gestion-des-contacts\/pourquoi-cirasync-ajoute-maman-a-mes-contacts\/\">Pourquoi CiraSync continue-t-il d&rsquo;ajouter Maman dans mon dossier de contacts?<\/a><\/li>\n<li><a href=\"https:\/\/cirasync.com\/fr\/articles-du-blog\/gestion-des-contacts\/contact-sync-solution-office-365-caller-id\/\">Qui diable m&rsquo;appelle maintenant?<\/a><\/li>\n<li><a href=\"\/blog-articles\/contact-management\/no-place-like-home-in-the-gal\/\">Pouvez-vous avoir une adresse personnelle et des adresses professionnelles dans la liste d&rsquo;adresses globale?<\/a><\/li>\n<li><a href=\"https:\/\/cirasync.com\/fr\/articles-du-blog\/gestion-des-contacts\/stop-robocalls-in-6-steps\/\">6 \u00e9tapes simples pour arr\u00eater les appels automatis\u00e9s avec CiraSync<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Un million d&rsquo;utilisateurs de Gmail sont d&rsquo;accord sur ce point : lorsque vous utilisez un compte gratuit, quelqu&rsquo;un d&rsquo;autre finira par l&rsquo;utiliser \u00e9galement. R\u00e9cemment, plus de 1 000 000 de comptes et de listes de contacts Gmail ont \u00e9t\u00e9 pirat\u00e9s via une escroquerie d&rsquo;hame\u00e7onnage (phishing) unique dans laquelle les utilisateurs ont \u00e9t\u00e9 amen\u00e9s \u00e0 ouvrir [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":23454,"comment_status":"closed","ping_status":"closed","sticky":true,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","_nextfly_llmd_date_locked":false,"footnotes":""},"categories":[12167],"tags":[],"ppma_author":[13546],"class_list":["post-38295","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gestion-des-contacts"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.1 (Yoast SEO v27.1.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Raisons d\u2019\u00c9viter Outils Gratuits de Gestion Contacts<\/title>\n<meta name=\"description\" content=\"Blog CiraSync: Conseils et meilleures pratiques pour synchronisation contacts et calendriers Office 365.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cirasync.com\/fr\/articles-du-blog\/gestion-des-contacts\/contactmanagementsolutions\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Un million de raisons de NE PAS utiliser les solutions gratuites de gestion des contacts\" \/>\n<meta property=\"og:description\" content=\"Blog CiraSync: Conseils et meilleures pratiques pour synchronisation contacts et calendriers Office 365.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cirasync.com\/fr\/articles-du-blog\/gestion-des-contacts\/contactmanagementsolutions\/\" \/>\n<meta property=\"og:site_name\" content=\"CiraSync\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/CiraSync\/\" \/>\n<meta property=\"article:published_time\" content=\"2021-07-01T15:02:28+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-18T14:26:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cirasync.com\/wp-content\/uploads\/2017\/05\/SU-Design-1494271900.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Ema Zulic\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@CiraSync\" \/>\n<meta name=\"twitter:site\" content=\"@CiraSync\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Ema Zulic\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta 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