{"id":23693,"date":"2021-10-24T18:03:44","date_gmt":"2021-10-24T16:03:44","guid":{"rendered":"https:\/\/test-blog.mailfence.com\/?p=23693"},"modified":"2024-11-14T10:20:23","modified_gmt":"2024-11-14T09:20:23","slug":"perturbations-service-attaque-ddos","status":"publish","type":"post","link":"https:\/\/blog.mailfence.com\/fr\/perturbations-service-attaque-ddos\/","title":{"rendered":"Perturbations possibles du service en raison d&rsquo;attaques DDoS"},"content":{"rendered":"\n<p><br>Nous tenons \u00e0 vous informer que depuis le vendredi 22 octobre, nous sommes confront\u00e9s \u00e0 des \u00e9pisodes d&rsquo;attaques DDoS sur notre infrastructure.<\/p>\n\n\n\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-qu-est-ce-qu-une-attaque-ddos\">Qu&rsquo;est-ce qu&rsquo;une attaque DDoS ?<\/h2>\n\n\n\n<p>Nous avons d\u00e9j\u00e0 \u00e9crit <a href=\"https:\/\/blog.mailfence.com\/fr\/attaques-ddos-principe-prevention\/\">un article sur ce sujet<\/a>. Pour simplifier, lors d&rsquo;attaques DDoS (ou attaques par d\u00e9ni de service distribu\u00e9), les services internet sont surcharg\u00e9s de demandes de connexion par les pirates. Les clients sont alors temporairement incapables d&rsquo;acc\u00e9der au service en question &#8211; ou seulement de mani\u00e8re tr\u00e8s limit\u00e9e. Cela peut se produire \u00e0 diff\u00e9rents niveaux, par exemple au niveau du r\u00e9seau (et\/ou du Transport) ou de l&rsquo;application, voire des deux. Les donn\u00e9es elles-m\u00eames ne sont pas attaqu\u00e9es lors des attaques DDoS et elles restent intactes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mailfence : Situation actuelle concernant les attaques DDoS<\/h2>\n\n\n\n<p>Nous disposons de protections et utilisons un service anti-DDoS d\u00e9di\u00e9. Les attaques DDoS peuvent toutefois avoir des effets ind\u00e9sirables ou provoquer des interruptions de service, en fonction de l&rsquo;intensit\u00e9 de l&rsquo;attaque.<\/p>\n\n\n\n<p>En raison d&rsquo;une erreur technique de notre fournisseur en amont le vendredi 22 octobre, le r\u00e9seau a \u00e9t\u00e9 perturb\u00e9, ce qui a occasionn\u00e9 des latences et <a href=\"https:\/\/twitter.com\/Mailfence\/status\/1451588868931821570\">affect\u00e9 la disponibilit\u00e9 du service<\/a>.<\/p>\n\n\n\n<p>Nous avons \u00e9t\u00e9 confront\u00e9s \u00e0 une nouvelle s\u00e9rie d&rsquo;attaques hier 23 octobre. Bien qu&rsquo;elles aient \u00e9t\u00e9 contrecarr\u00e9es efficacement, nous tenons \u00e0 vous informer que des perturbations pourraient \u00e0 nouveau se produire. Nous avons d\u00e9j\u00e0 renforc\u00e9 nos mesures de protection existantes et nous continuons de les am\u00e9liorer.<\/p>\n\n\n\n<p>Nous avons re\u00e7u une lettre de menace et une demande de ran\u00e7on. Nous n&rsquo;avons pas l&rsquo;intention de payer. Les entreprises ne doivent en aucun cas faire l&rsquo;objet de chantage. Le fait de payer des ran\u00e7ons et de c\u00e9der au chantage rend les entreprises plus vuln\u00e9rables aux attaques futures. En outre, il arrive souvent que les attaques DDoS ne soient pas suspendues m\u00eame lorsque de l&rsquo;argent a \u00e9t\u00e9 vers\u00e9.<\/p>\n\n\n\n<p>Conform\u00e9ment \u00e0 nos politiques de s\u00e9curit\u00e9, nous avons \u00e9galement inform\u00e9 le service belge correspondant (CERT).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Points importants \u00e0 noter<\/h2>\n\n\n\n<p>En tant que fournisseur d&#8217;email s\u00e9curis\u00e9, nous prenons notre responsabilit\u00e9 au s\u00e9rieux. Nous souhaitons donc vous donner quelques conseils.<br>Au cas o\u00f9 Mailfence deviendrait soudainement plus lent ou serait temporairement indisponible dans les prochains jours, veuillez proc\u00e9der comme suit :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Il n&rsquo;y a aucune perturbation technique de notre part et vos donn\u00e9es sont et resteront toujours en s\u00e9curit\u00e9. C&rsquo;est seulement l&rsquo;acc\u00e8s \u00e0 vos donn\u00e9es qui est perturb\u00e9 par la surcharge de notre r\u00e9seau et de nos serveurs.<\/li>\n\n\n\n<li>ELes courriels ne sont pas perdus. Lorsqu&rsquo;une perturbation temporaire se produit, les emails sont transmis d\u00e8s que le r\u00e9seau est \u00e0 nouveau disponible.<\/li>\n\n\n\n<li>Si vous rencontrez des probl\u00e8mes pour acc\u00e9der \u00e0 Mailfence, veuillez patienter et r\u00e9essayer quelques minutes plus tard. Vous retrouverez bient\u00f4t la possibilit\u00e9 de vous connecter \u00e0 votre compte comme d&rsquo;habitude. Le fait de lancer rapidement des demandes cons\u00e9cutives de connexion ou de t\u00e9l\u00e9chargement d&#8217;emails aggrave la situation des serveurs qui sont attaqu\u00e9s.<\/li>\n\n\n\n<li>Consultez <a href=\"https:\/\/twitter.com\/Mailfence\">notre compte Twitter<\/a> ou <a href=\"https:\/\/www.reddit.com\/r\/Mailfence\/\">les autres r\u00e9seaux sociaux<\/a> pour vous tenir au courant.<\/li>\n\n\n\n<li>N&rsquo;envoyez pas d&rsquo;e-mails \u00e0 notre support client. L&rsquo;un des objectifs des attaquants est de surcharger les entreprises cibl\u00e9es par le chantage avec des masses de r\u00e9clamations de clients.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">La vie priv\u00e9e en ligne est vou\u00e9e \u00e0 prosp\u00e9rer<\/h2>\n\n\n\n<p>Enfin, nous tenons \u00e0 remercier <strong>notre communaut\u00e9 d&rsquo;utilisateurs<\/strong>. Nous avons construit Mailfence pour vous, et nous tenons \u00e0 vous remercier pour votre soutien, dans les bons comme dans les mauvais moments.<\/p>\n\n\n\n<p>Votre soutien, vos dons et vos passages \u00e0 des versions sup\u00e9rieures nous donnent les ressources n\u00e9cessaires pour d\u00e9velopper un service de messagerie s\u00e9curis\u00e9 et priv\u00e9 et pour lutter contre les attaques DDoS. Nous sommes inform\u00e9s que des attaques par d\u00e9ni de service distribu\u00e9 similaires ont \u00e9galement \u00e9t\u00e9 lanc\u00e9es contre d&rsquo;autres services tels que Tutanota, FastMail, Mailbox.org, Posteo et Runbox et nous manifestons tout notre soutien \u00e0 nos coll\u00e8gues.<\/p>\n\n\n\n<p>En s&rsquo;attaquant aux services de messagerie priv\u00e9s, les attaquants envoient le message qu&rsquo;ils ne veulent pas que la vie priv\u00e9e en ligne triomphe. Cependant, nous avons l&rsquo;intention de leur envoyer un message encore plus fort : <strong>la vie priv\u00e9e en ligne est vou\u00e9e \u00e0 prosp\u00e9rer.<\/strong> Pour en savoir plus sur Mailfence, consultez notre<a href=\"https:\/\/mailfence.com\/fr\/presse.jsp\"> page de presse.<\/a><\/p>\n\n\n\n<p class=\"has-text-align-right\">Pour plus de d\u00e9tails, visitez notre <a href=\"https:\/\/mailfence.com\/fr\/presse.jsp\">page presse.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nous tenons \u00e0 vous informer que depuis le vendredi 22 octobre, nous sommes confront\u00e9s \u00e0 des \u00e9pisodes d&rsquo;attaques DDoS sur notre infrastructure. Qu&rsquo;est-ce qu&rsquo;une attaque DDoS ? Nous avons d\u00e9j\u00e0 \u00e9crit un article sur ce sujet. Pour simplifier, lors d&rsquo;attaques DDoS (ou attaques par d\u00e9ni de service distribu\u00e9), les services internet sont surcharg\u00e9s de demandes [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":86149,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18591],"tags":[],"class_list":["post-23693","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mailfence-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Perturbations possibles du service en raison d&#039;attaques DDoS | Mailfence Blog<\/title>\n<meta name=\"description\" content=\"Mailfence a \u00e9t\u00e9 confront\u00e9 \u00e0 des \u00e9pisodes d&#039;attaques DDoS sur son infrastructure la semaine derni\u00e8re. 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