{"id":6356,"date":"2026-08-07T10:32:23","date_gmt":"2026-08-07T10:32:23","guid":{"rendered":"https:\/\/windowsreport.com\/pt\/microsoft-alerta-os-clientes-do-entra-sobre-a-descontinuacao-da-autenticacao-por-sms-em-fevereiro-de-2027\/"},"modified":"2026-08-07T10:32:23","modified_gmt":"2026-08-07T10:32:23","slug":"microsoft-alerta-os-clientes-do-entra-sobre-a-descontinuacao-da-autenticacao-por-sms-em-fevereiro-de-2027","status":"publish","type":"post","link":"https:\/\/windowsreport.com\/pt\/microsoft-alerta-os-clientes-do-entra-sobre-a-descontinuacao-da-autenticacao-por-sms-em-fevereiro-de-2027\/","title":{"rendered":"Microsoft alerta os clientes do Entra sobre a descontinua\u00e7\u00e3o da autentica\u00e7\u00e3o por SMS em fevereiro de 2027"},"content":{"rendered":"\n<p>A autentica\u00e7\u00e3o por SMS e voz do Microsoft Entra ser\u00e1 descontinuada em 1 de fevereiro de 2027, \u00e0 medida que a Microsoft come\u00e7a a migrar os clientes para chaves de acesso e outros m\u00e9todos de in\u00edcio de sess\u00e3o resistentes a phishing.<\/p>\n\n\n\n<p>A Microsoft come\u00e7ou a enviar e-mails \u00e0s organiza\u00e7\u00f5es do Entra ID afetadas sobre a mudan\u00e7a que se aproxima, de acordo com o <a href=\"https:\/\/www.neowin.net\/news\/microsoft-starts-sending-out-emails-to-warn-about-big-entra-id-change-to-authentication\/\" target=\"_blank\" rel=\"noreferrer noopener\">Neowin<\/a>. A empresa havia anunciado anteriormente que a MFA por SMS e voz do Entra ID seria descontinuada, mas agora est\u00e1 entrando em contato diretamente com os clientes \u00e0 medida que o prazo de migra\u00e7\u00e3o se aproxima.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-microsoft-will-start-the-transition-in-september\">A Microsoft iniciar\u00e1 a transi\u00e7\u00e3o em setembro<\/h2>\n\n\n\n<p>O processo de migra\u00e7\u00e3o come\u00e7a em 1 de setembro de 2026. O Entra ID ativar\u00e1 automaticamente o suporte a chaves de acesso para os utilizadores que atualmente dependem da autentica\u00e7\u00e3o por SMS ou voz.<\/p>\n\n\n\n<p>Os utilizadores afetados tamb\u00e9m come\u00e7ar\u00e3o a ver solicita\u00e7\u00f5es de in\u00edcio de sess\u00e3o que os incentivam a registrar uma chave de acesso. A Microsoft tem cada vez mais pressionado os clientes a adotarem chaves de acesso, \u00e0 medida que os ataques a senhas e \u00e0 autentica\u00e7\u00e3o se tornam mais sofisticados.<\/p>\n\n\n\n<p>Os utilizadores que ainda n\u00e3o tiverem configurado uma chave de acesso ou outro m\u00e9todo suportado e resistente a phishing at\u00e9 1 de fevereiro de 2027 enfrentar\u00e3o um bloqueio de registro obrigat\u00f3rio durante o in\u00edcio de sess\u00e3o. Eles precisar\u00e3o configurar um m\u00e9todo de autentica\u00e7\u00e3o aceite antes de aceder \u00e0s suas contas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-microsoft-says-sms-authentication-carries-security-risks\">A Microsoft afirma que a autentica\u00e7\u00e3o por SMS acarreta riscos de seguran\u00e7a<\/h3>\n\n\n\n<p>A Microsoft afirma que os atacantes conseguem cada vez mais comprometer a autentica\u00e7\u00e3o por SMS atrav\u00e9s de m\u00e9todos como a troca de SIM e o phishing de advers\u00e1rio no meio.<\/p>\n\n\n\n<p>As chaves de acesso evitam c\u00f3digos de autentica\u00e7\u00e3o tempor\u00e1rios e senhas que os atacantes podem intercetar ou roubar.<\/p>\n\n\n\n<p>As organiza\u00e7\u00f5es que necessitem de continuar a utilizar a autentica\u00e7\u00e3o telef\u00f3nica por raz\u00f5es regulamentares ou de conformidade ter\u00e3o outra op\u00e7\u00e3o. A Microsoft permitir\u00e1 que utilizem fornecedores de telecomunica\u00e7\u00f5es geridos pelo cliente, dispon\u00edveis na Loja de Seguran\u00e7a da Microsoft.<\/p>\n\n\n\n<p>Os pre\u00e7os dos fornecedores estar\u00e3o dispon\u00edveis a 18 de setembro de 2026 e as organiza\u00e7\u00f5es poder\u00e3o come\u00e7ar a configurar os fornecedores suportados a partir de 30 de outubro.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-administrators-should-identify-affected-users-now\">Os administradores devem identificar agora os utilizadores afetados<\/h3>\n\n\n\n<p>Os administradores de TI devem rever a sua Pol\u00edtica de M\u00e9todos de Autentica\u00e7\u00e3o e identificar as contas que ainda dependem da autentica\u00e7\u00e3o por SMS ou voz antes do in\u00edcio da migra\u00e7\u00e3o em setembro.<\/p>\n\n\n\n<p>A Microsoft recomenda que esses utilizadores sejam migrados proativamente para chaves de acesso. As organiza\u00e7\u00f5es podem configurar chaves de acesso atrav\u00e9s do Microsoft Authenticator ou de chaves de seguran\u00e7a de hardware compat\u00edveis.<\/p>\n\n\n\n<p>A mudan\u00e7a n\u00e3o se limita a clientes empresariais. A Microsoft tamb\u00e9m est\u00e1 a eliminar gradualmente a autentica\u00e7\u00e3o por SMS para contas pessoais da Microsoft.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A autentica\u00e7\u00e3o por SMS e voz do Microsoft Entra ser\u00e1 descontinuada em 1 de fevereiro de 2027, \u00e0 medida que a Microsoft come\u00e7a a migrar os clientes para chaves de acesso e outros m\u00e9todos de in\u00edcio de sess\u00e3o resistentes a phishing. A Microsoft come\u00e7ou a enviar e-mails \u00e0s organiza\u00e7\u00f5es do Entra ID afetadas sobre a [&hellip;]<\/p>\n","protected":false},"author":49,"featured_media":6357,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_enabled_clarity":"","footnotes":""},"categories":[55],"tags":[],"work":[],"class_list":["post-6356","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutoriais"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.1 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Microsoft alerta os clientes do Entra sobre a descontinua\u00e7\u00e3o da autentica\u00e7\u00e3o por SMS em fevereiro de 2027 - WindowsReport PT (Portuguese)<\/title>\n<meta name=\"description\" content=\"A Microsoft est\u00e1 alertando os clientes do Entra para substitu\u00edrem o MFA por SMS e chamada de voz 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