{"id":6358,"date":"2026-08-07T10:40:55","date_gmt":"2026-08-07T10:40:55","guid":{"rendered":"https:\/\/windowsreport.com\/pt\/microsoft-alerta-clientes-do-entra-sobre-descontinuacao-da-autenticacao-por-sms-em-fevereiro-de-2027\/"},"modified":"2026-08-07T10:40:55","modified_gmt":"2026-08-07T10:40:55","slug":"microsoft-alerta-clientes-do-entra-sobre-descontinuacao-da-autenticacao-por-sms-em-fevereiro-de-2027","status":"publish","type":"post","link":"https:\/\/windowsreport.com\/pt\/microsoft-alerta-clientes-do-entra-sobre-descontinuacao-da-autenticacao-por-sms-em-fevereiro-de-2027\/","title":{"rendered":"Microsoft Alerta Clientes do Entra Sobre 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 a 1 de fevereiro de 2027, \u00e0 medida que a Microsoft come\u00e7a a migrar os clientes para passkeys 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 afetadas no Entra ID sobre a pr\u00f3xima altera\u00e7\u00e3o, 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 j\u00e1 tinha anunciado que a MFA por SMS e voz do Entra ID seria descontinuada, mas agora est\u00e1 a contactar diretamente os clientes \u00e0 medida que se aproxima o prazo de migra\u00e7\u00e3o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-microsoft-will-start-the-transition-in-september\">Microsoft iniciar\u00e1 a transi\u00e7\u00e3o em setembro<\/h2>\n\n\n\n<p>O processo de migra\u00e7\u00e3o come\u00e7a a 1 de setembro de 2026. O Entra ID ativar\u00e1 automaticamente o suporte a passkeys 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 avisos de in\u00edcio de sess\u00e3o que os incentivam a registar uma passkey. A Microsoft tem pressionado cada vez mais os clientes a adotarem passkeys \u00e0 medida que os ataques a palavras-passe e \u00e0 autentica\u00e7\u00e3o se tornam mais sofisticados.<\/p>\n\n\n\n<p>Os utilizadores que ainda n\u00e3o tiverem configurado uma passkey ou outro m\u00e9todo resistente a phishing suportado at\u00e9 1 de fevereiro de 2027 enfrentar\u00e3o um bloqueio de registo obrigat\u00f3rio durante o in\u00edcio de sess\u00e3o. Ter\u00e3o de configurar um m\u00e9todo de autentica\u00e7\u00e3o aceite antes de acederem \u00e0s suas contas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-microsoft-says-sms-authentication-carries-security-risks\">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 podem cada vez mais comprometer a autentica\u00e7\u00e3o por SMS atrav\u00e9s de m\u00e9todos como a troca de SIM e o Advers\u00e1rio no Meio (Adversary-in-the-Middle).<\/p>\n\n\n\n<p>As passkeys evitam c\u00f3digos de autentica\u00e7\u00e3o tempor\u00e1rios e palavras-passe que os atacantes podem intercetar ou roubar.<\/p>\n\n\n\n<p>As organiza\u00e7\u00f5es que tenham de continuar a utilizar a autentica\u00e7\u00e3o por telefone 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 atrav\u00e9s da Microsoft Security Store.<\/p>\n\n\n\n<p>Os pre\u00e7os dos fornecedores ficar\u00e3o dispon\u00edveis a 18 de setembro de 2026, enquanto as organiza\u00e7\u00f5es poder\u00e3o come\u00e7ar a configurar 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 j\u00e1 os utilizadores afetados<\/h3>\n\n\n\n<p>Os administradores de TI devem rever a 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 migrar proativamente esses utilizadores para passkeys. As organiza\u00e7\u00f5es podem configurar passkeys atrav\u00e9s do Microsoft Authenticator ou de chaves de seguran\u00e7a de hardware compat\u00edveis.<\/p>\n\n\n\n<p>A altera\u00e7\u00e3o n\u00e3o se limita aos clientes empresariais. A Microsoft tamb\u00e9m est\u00e1 a descontinuar a autentica\u00e7\u00e3o por SMS para contas Microsoft pessoais.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A autentica\u00e7\u00e3o por SMS e voz do Microsoft Entra ser\u00e1 descontinuada a 1 de fevereiro de 2027, \u00e0 medida que a Microsoft come\u00e7a a migrar os clientes para passkeys 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 afetadas no Entra ID sobre a pr\u00f3xima altera\u00e7\u00e3o, [&hellip;]<\/p>\n","protected":false},"author":49,"featured_media":6359,"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-6358","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 v28.3 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Microsoft Alerta Clientes do Entra Sobre Descontinua\u00e7\u00e3o da Autentica\u00e7\u00e3o por SMS em Fevereiro de 2027<\/title>\n<meta name=\"description\" content=\"A Microsoft est\u00e1 a alertar os clientes do Entra para substitu\u00edrem a MFA por SMS e voz por passkeys 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