{"id":47012,"date":"2022-07-14T14:17:02","date_gmt":"2022-07-14T13:17:02","guid":{"rendered":"https:\/\/tmtid.com\/le-probleme-des-appels-flash\/"},"modified":"2025-08-05T13:31:57","modified_gmt":"2025-08-05T12:31:57","slug":"le-probleme-des-appels-flash","status":"publish","type":"post","link":"https:\/\/tmtid.com\/fr\/le-probleme-des-appels-flash\/","title":{"rendered":"Le probl\u00e8me des appels Flash"},"content":{"rendered":"<p class=\"ai-optimize-introduction ai-optimize-6\">Dans le cadre de mon travail \u00e0 TMT ID, je discute souvent avec les clients des probl\u00e8mes qu&#8217;ils rencontrent. L&#8217;un des probl\u00e8mes qui revient de plus en plus souvent est celui des <strong>&#8220;appels flash&#8221;.<\/strong><\/p>\n<h2 class=\"ai-optimize-7\">Qu&#8217;est-ce qu&#8217;un appel flash ?<\/h2>\n<p class=\"ai-optimize-8\">En bref, un appel flash utilise un appel manqu\u00e9 comme moyen de contourner l&#8217;utilisation d&#8217;un SMS pour fournir un mot de passe \u00e0 usage unique (OTP). L&#8217;exp\u00e9diteur appelle l&#8217;abonn\u00e9 et raccroche tr\u00e8s vite pour que l&#8217;abonn\u00e9 ne puisse pas r\u00e9pondre.<\/p>\n<p class=\"ai-optimize-9\">L&#8217;identifiant de l&#8217;appelant constitue un mot de passe \u00e0 usage unique. Si l&#8217;abonn\u00e9 utilise un t\u00e9l\u00e9phone Android et autorise l&#8217;application de r\u00e9ception \u00e0 g\u00e9rer les appels t\u00e9l\u00e9phoniques, l&#8217;application lira l&#8217;identifiant de l&#8217;appelant et authentifiera l&#8217;utilisateur. Sur IOS, l&#8217;entr\u00e9e de l&#8217;utilisateur est n\u00e9cessaire.<\/p>\n<p class=\"ai-optimize-10\">Selon une <a href=\"https:\/\/www.gsma.com\/get-involved\/gsma-membership\/gsma_resources\/divert-flash-calls-to-monetization-route-with-a-new-solution-by-ab-handshake\/#:~:text=Flash%20Call%20Detector&amp;text=A%20recent%20research%20by%20Juniper,in%20the%20next%205%20years.\" target=\"_blank\" rel=\"noopener noreferrer\">\u00e9tude r\u00e9cente de Juniper<\/a>, le nombre d&#8217;appels utilis\u00e9s pour l&#8217;authentification flash avoisinera les 130 milliards \u00e0 l&#8217;\u00e9chelle mondiale d&#8217;ici 2026.<\/p>\n<h2 class=\"ai-optimize-11\">Comment fonctionne l&#8217;appel flash ?<\/h2>\n<p class=\"ai-optimize-12\">Cette proc\u00e9dure diff\u00e8re des <a href=\"https:\/\/tmtid.com\/3d-secure-v2-and-the-problem-with-2fa\/\">m\u00e9thodes 2FA<\/a> traditionnelles. La plupart des m\u00e9thodes traditionnelles demandent aux utilisateurs d&#8217;entrer un code provenant d&#8217;un message texte. En revanche, cette proc\u00e9dure utilise les chiffres du num\u00e9ro d&#8217;appel entrant comme code d&#8217;acc\u00e8s par le biais d&#8217;un processus enti\u00e8rement automatis\u00e9.<\/p>\n<p class=\"ai-optimize-13\">Techniquement, il y a trois fa\u00e7ons de faire des appels flash :<\/p>\n<ol>\n<li class=\"ai-optimize-14\">Usurpez le num\u00e9ro A (identification de l&#8217;appelant) pour en faire un mot de passe \u00e0 usage unique (g\u00e9n\u00e9ralement un code \u00e0 4 ou 5 chiffres).<\/li>\n<li class=\"ai-optimize-15\">Usurpez le num\u00e9ro A (num\u00e9ro d&#8217;identification de l&#8217;appelant) en un num\u00e9ro qui semble valide. L&#8217;OTP est alors soit les 4-5 derniers chiffres, soit une combinaison (les chiffres 1,3,7,2 de l&#8217;ID de l&#8217;appelant forment l&#8217;OTP).<\/li>\n<li class=\"ai-optimize-16\">Utilisez un num\u00e9ro d&#8217;appel valide, attribu\u00e9 \u00e0 partir d&#8217;une gamme appartenant \u00e0 l&#8217;entreprise qui propose le produit. L&#8217;OTP est ensuite form\u00e9 comme au point pr\u00e9c\u00e9dent.<\/li>\n<\/ol>\n<p class=\"ai-optimize-17\">De toute \u00e9vidence, les principales parties dans ce sc\u00e9nario sont l&#8217;utilisateur final et l&#8217;entreprise qui utilise les appels Flash pour authentifier l&#8217;utilisateur final. Mais il ne s&#8217;agit pas des clients et des prospects que j&#8217;ai mentionn\u00e9s pr\u00e9c\u00e9demment ; il s&#8217;agit des utilisateurs d&#8217;un service qui implique plusieurs parties ayant des int\u00e9r\u00eats diff\u00e9rents. Les clients et les prospects avec lesquels j&#8217;ai discut\u00e9 sont les suivants :<\/p>\n<ul>\n<li class=\"ai-optimize-18\"><strong>Fournisseurs CPaaS<\/strong> &#8211; Ils offrent un service d&#8217;appel flash aux entreprises. Comme certains op\u00e9rateurs augmentent les frais de SMS A2P, les acteurs CPaaS ont commenc\u00e9 \u00e0 offrir ce service comme alternative pour \u00e9viter ces frais. Contrairement aux SMS ou \u00e0 un appel avec un SVI (serveur vocal interactif) dictant un OTP, un appel manqu\u00e9 n&#8217;a pas de co\u00fbt direct, c&#8217;est donc une excellente alternative pour les fournisseurs de CPaaS de gagner de l&#8217;argent car les appels flash repr\u00e9sentent une marge brute de 100 % pour eux.<\/li>\n<li class=\"ai-optimize-19\">Transporteurs <strong>de voix<\/strong> &#8211; Ils transmettent les appels aux op\u00e9rateurs de t\u00e9l\u00e9phonie mobile. Ces derniers n&#8217;aiment pas les appels flash, car les transporteurs de transit supportent des co\u00fbts r\u00e9els pour l&#8217;acheminement, l&#8217;investissement dans la capacit\u00e9 pour r\u00e9pondre aux exigences de qualit\u00e9 de service, etc. Les transporteurs de transit vocal obtiennent des revenus en facturant une redevance \u00e0 la minute pour les appels termin\u00e9s. Comme les appels flash ne sont pas consid\u00e9r\u00e9s comme des appels termin\u00e9s, ces op\u00e9rateurs ne re\u00e7oivent aucune compensation pour l&#8217;utilisation de leurs installations de r\u00e9seau.<\/li>\n<li class=\"ai-optimize-20\"><strong>Op\u00e9rateurs de r\u00e9seaux mobiles (ORM)<\/strong> &#8211; ils sont les plus touch\u00e9s par l&#8217;introduction de services d&#8217;appels flash par leurs clients, car ils perdent l&#8217;argent qu&#8217;ils auraient re\u00e7u du traitement des SMS A2P. Leurs groupes charg\u00e9s de l&#8217;assurance des revenus et de la lutte contre la fraude sont sensibilis\u00e9s au ph\u00e9nom\u00e8ne des appels \u00e9clairs et tentent de collaborer avec leurs fournisseurs de pare-feu ou des entreprises comme TMT Analysis pour trouver des solutions permettant d&#8217;identifier les appels \u00e9clairs afin qu&#8217;ils puissent \u00eatre factur\u00e9s.<\/li>\n<li class=\"ai-optimize-21\">Les <strong>vendeurs de pare-feu de signalisation<\/strong> &#8211; ils sont pouss\u00e9s par les ORM \u00e0 trouver des solutions pour arr\u00eater les appels \u00e9clairs.<\/li>\n<\/ul>\n<h2 class=\"ai-optimize-22\">Comment TMT peut-il vous aider ?<\/h2>\n<ul>\n<li class=\"ai-optimize-23\">Certains appels flash peuvent \u00eatre identifi\u00e9s et stopp\u00e9s en utilisant le <strong>TeleShield<\/strong>. Avec <a href=\"https:\/\/tmtid.com\/fr\/teleshield\/\" target=\"_blank\" rel=\"noopener noreferrer\">TeleShield<\/a>, les op\u00e9rateurs de transit vocal et les MNO des fournisseurs de pare-feu peuvent v\u00e9rifier en temps r\u00e9el l&#8217;identit\u00e9 de l&#8217;appelant et s&#8217;il s&#8217;agit d&#8217;un OTP usurp\u00e9, l&#8217;appel peut \u00eatre interrompu.<\/li>\n<li class=\"ai-optimize-24\">De la m\u00eame mani\u00e8re, si l&#8217;identification de l&#8217;appelant est usurp\u00e9e pour ressembler \u00e0 un num\u00e9ro r\u00e9el, il se peut que le num\u00e9ro ne se trouve pas dans une plage attribu\u00e9e. A <a href=\"https:\/\/tmtid.com\/fr\/vivre\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Live<\/strong><\/a> ou <strong>TeleShield<\/strong> am\u00e9lior\u00e9 peut \u00eatre effectu\u00e9e pour savoir s&#8217;il y a un abonn\u00e9 derri\u00e8re ce num\u00e9ro. Mais il y a une mise en garde \u00e0 ce sujet &#8211; des num\u00e9ros d&#8217;abonn\u00e9s r\u00e9els al\u00e9atoires peuvent \u00eatre utilis\u00e9s pour l&#8217;identification de l&#8217;appelant et il n&#8217;y a aucun moyen de les identifier et de les arr\u00eater.<\/li>\n<li class=\"ai-optimize-25\">Si l&#8217;appel provient d&#8217;une plage de num\u00e9ros valide que l&#8217;acteur CPaaS poss\u00e8de et exploite, l&#8217;op\u00e9rateur de transit, le MNO ou le fournisseur de pare-feu doit conna\u00eetre ces plages afin de pouvoir arr\u00eater ces appels flash.<\/li>\n<\/ul>\n<h2 class=\"ai-optimize-26\">L&#8217;avenir des appels flash<\/h2>\n<p class=\"ai-optimize-27\">Mon opinion personnelle est que les appels Flash ne seront pas arr\u00eat\u00e9s et que les ORM ne devraient pas essayer de les arr\u00eater, mais que l&#8217;accent devrait \u00eatre mis sur l&#8217;identification des moyens de mon\u00e9tiser ces appels.<\/p>\n<p class=\"ai-optimize-28\">Comme les initiatives visant \u00e0 authentifier l&#8217;identification de l&#8217;appelant progressent, telles que STIR\/SHAKEN aux \u00c9tats-Unis et au Canada, certaines des identifications usurp\u00e9es de l&#8217;appelant pourraient dispara\u00eetre \u00e0 court terme. Mais il faudra beaucoup de temps pour y parvenir partout. Si les ORM veulent arr\u00eater de perdre des revenus avec les appels flash, il faut un effort commun que je con\u00e7ois comme suit :<\/p>\n<ul>\n<li class=\"ai-optimize-29\">Gr\u00e2ce aux capacit\u00e9s d&#8217;analyse des donn\u00e9es de TMT, nous pouvons aider les ORM \u00e0 mesurer les niveaux moyens d&#8217;appels manqu\u00e9s l\u00e9gitimes sur les lignes entrantes et \u00e0 identifier les appels flash \u00e9vidents.<\/li>\n<li class=\"ai-optimize-30\">Les ORM devraient modifier leurs contrats de gros pour facturer les appels flash d\u00e9tect\u00e9s et autoriser un pourcentage d&#8217;appels manqu\u00e9s et consid\u00e9rer tout ce qui d\u00e9passe ce pourcentage comme des appels flash.<\/li>\n<li class=\"ai-optimize-31\">La TMT peut identifier les appels flash sur des identifiants d&#8217;appelants usurp\u00e9s qui appartiennent \u00e0 des plages non attribu\u00e9es ou \u00e0 des num\u00e9ros qui n&#8217;appartiennent pas \u00e0 des abonn\u00e9s r\u00e9els, afin que les ORM puissent les facturer en cons\u00e9quence.<\/li>\n<li class=\"ai-optimize-32\">Gr\u00e2ce \u00e0 des analyses de donn\u00e9es bas\u00e9es sur l&#8217;intelligence artificielle (IA), TMT Analysis peut identifier et signaler correctement les appels flash \u00e0 partir de gammes valides et attribu\u00e9es de fournisseurs d&#8217;appels flash.<\/li>\n<li class=\"ai-optimize-33\">Les appels manqu\u00e9s restants par ligne t\u00e9l\u00e9phonique peuvent alors \u00eatre calcul\u00e9s et tout ce qui d\u00e9passe les seuils normaux peut \u00eatre factur\u00e9 en tant qu&#8217;appels flash.<\/li>\n<\/ul>\n<p class=\"ai-optimize-34\">En conclusion, je pense que les appels flash sont l\u00e0 pour rester, m\u00eame si je ne pense pas qu&#8217;ils auront autant de succ\u00e8s que les SMS A2P. Bien qu&#8217;il puisse \u00eatre consid\u00e9r\u00e9 comme un &#8220;cherry-picking&#8221; pour l&#8217;instant, c&#8217;est un service valable que certaines entreprises et certains utilisateurs finaux appr\u00e9cient.<\/p>\n<p class=\"ai-optimize-35\">Je ne pense pas que les op\u00e9rateurs de r\u00e9seaux mobiles puissent les arr\u00eater, mais ils devraient plut\u00f4t essayer de mon\u00e9tiser les appels flash de la m\u00eame mani\u00e8re qu&#8217;ils ont mon\u00e9tis\u00e9 les SMS A2P. De m\u00eame, l&#8217;<a href=\"https:\/\/tmtid.com\/fr\/le-probleme-de-la-fraude-a-laci\/\">AIT<\/a> est un autre probl\u00e8me croissant que les ORM et les fournisseurs d&#8217;acc\u00e8s \u00e0 Internet auront du mal \u00e0 g\u00e9rer \u00e0 l&#8217;avenir en raison des b\u00e9n\u00e9fices qu&#8217;ils offrent aux cybercriminels.<\/p>\n<p class=\"ai-optimize-36\">Pour plus d&#8217;informations sur notre gamme de produits, envoyez-nous un courriel \u00e0 l&#8217;adresse <a href=\"mailto:info@tmtid.com\" target=\"_blank\" rel=\"noopener noreferrer\">suivante : info@tmtid.com<\/a><\/p>\n<p class=\"ai-optimize-37\">Pour obtenir des conseils utiles sur l&#8217;usurpation de num\u00e9ro, vous pouvez lire notre article \u00e0 ce sujet.<\/p>\n<div id=\"last_updated\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Appels \u00e9clairs : un probl\u00e8me croissant en mati\u00e8re d&#8217;authentification. Explorez des solutions avec TMT pour des strat\u00e9gies d&#8217;identification et de mon\u00e9tisation efficaces. <\/p>\n","protected":false},"author":4,"featured_media":34346,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[541,1490,539],"tags":[1497,1340,791,776,630],"class_list":["post-47012","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","category-developpeurs","category-identite","tag-appels-eclairs","tag-developpeurs","tag-lidentite","tag-la-cybersecurite-fr","tag-securite"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.8 (Yoast SEO v26.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>The Problem of Flash Calls - TMT ID<\/title>\n<meta name=\"description\" content=\"The problem of Flash Calls is becoming more common. Find out what they are and how you can protect yourself.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tmtid.com\/fr\/le-probleme-des-appels-flash\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le probl\u00e8me des appels Flash\" \/>\n<meta property=\"og:description\" content=\"The problem of Flash Calls is becoming more common. Find out what they are and how you can protect yourself.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/tmtid.com\/fr\/le-probleme-des-appels-flash\/\" \/>\n<meta property=\"og:site_name\" content=\"TMT ID\" \/>\n<meta property=\"article:published_time\" content=\"2022-07-14T13:17:02+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-05T12:31:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/tmtid.com\/wp-content\/uploads\/2022\/07\/The-Problem-Of-Flash-Calls-2.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Fergal Parkinson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Fergal Parkinson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/tmtid.com\/fr\/le-probleme-des-appels-flash\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/tmtid.com\/fr\/le-probleme-des-appels-flash\/\"},\"author\":{\"name\":\"Fergal Parkinson\",\"@id\":\"https:\/\/tmtid.com\/fr\/#\/schema\/person\/359435013100154a229d4a850c475c2e\"},\"headline\":\"Le probl\u00e8me des appels Flash\",\"datePublished\":\"2022-07-14T13:17:02+00:00\",\"dateModified\":\"2025-08-05T12:31:57+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/tmtid.com\/fr\/le-probleme-des-appels-flash\/\"},\"wordCount\":1328,\"publisher\":{\"@id\":\"https:\/\/tmtid.com\/fr\/#organization\"},\"image\":{\"@id\":\"https:\/\/tmtid.com\/fr\/le-probleme-des-appels-flash\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/tmtid.com\/wp-content\/uploads\/2022\/07\/The-Problem-Of-Flash-Calls-2.png\",\"keywords\":[\"appels \u00e9clairs\",\"d\u00e9veloppeurs\",\"l'identit\u00e9\",\"la cybers\u00e9curit\u00e9\",\"s\u00e9curit\u00e9\"],\"articleSection\":[\"Actualit\u00e9s\",\"D\u00e9veloppeurs\",\"Identit\u00e9\"],\"inLanguage\":\"fr-FR\",\"copyrightYear\":\"2022\",\"copyrightHolder\":{\"@id\":\"https:\/\/tmtid.com\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/tmtid.com\/fr\/le-probleme-des-appels-flash\/\",\"url\":\"https:\/\/tmtid.com\/fr\/le-probleme-des-appels-flash\/\",\"name\":\"The Problem of Flash Calls - TMT ID\",\"isPartOf\":{\"@id\":\"https:\/\/tmtid.com\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/tmtid.com\/fr\/le-probleme-des-appels-flash\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/tmtid.com\/fr\/le-probleme-des-appels-flash\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/tmtid.com\/wp-content\/uploads\/2022\/07\/The-Problem-Of-Flash-Calls-2.png\",\"datePublished\":\"2022-07-14T13:17:02+00:00\",\"dateModified\":\"2025-08-05T12:31:57+00:00\",\"description\":\"The problem of Flash Calls is becoming more common. 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