Atualização do Office 365 permite abrir anexos sem medo de malwares


A Microsoft está cada vez mais próxima de disponibilizar sua tecnologia de segurança, o Application Guard, para os aplicativos da linha 365 (antigo Office). Desta forma, administradores de TI passam a ter mais garantia de que os usuários que tentarem abrir anexos suspeitos não causarão um surto de malwares baixados em seus e-mails.O Application Guard oferece proteção adicional para empresas que utilizam Word, Excel e Power Point na sua versão 365 e também para usuários do Windows 10 Enterprise.A empresa afirma que a tecnologia de segurança, ou Microsoft Defender Application Guard em seu nome completo, “ajuda a prevenir arquivos suspeitos de acessar recursos confiáveis, mantendo sua empresa segura de novos e futuros ataques.”A Microsoft lançou uma prévia privada desta tecnologia em fevereiro, estendendo para outros programas. Até aquele momento, a função era disponível somente para o seu novo navegador, o Edge.print-blog-microsoft.jpgPublicação sobre a Application Guard para os aplicativos da linha 365 Imagem: Blog Oficial do Office 365A função permite aos usuários navegar de forma segura por sites com proteções habilitadas por hardware em conteinerização, técnica que permite alta taxa de desempenho por equipes de programação e desenvolvimento como as que mantém o Youtube e Gmail ativo. Com isso, o navegador é isolado dos processos de operações inferiores tanto do sistema quanto do computador utilizado.A novidade se tornará padrão e estará disponível somente para clientes que possuem a licença Microsoft 365 nos planos E5 ou E5 Security. Segundo os documentos técnicos da empresa, os computadores precisam estar rodando Windows 10 Enterprise nas versões 2004, 20H1, 19041, e ter instalado a versão beta do Office versão 2008 16.0.13212 ou posterior. A plataforna de segurança nativa do sistema operacional da Microsoft, o Windows Defender,  vai utilizar essa nova tecnologia alertando o usuário sobre malwares, fazendo isso em um ambiente virtual isolado e seguro.malware-materia.jpgMalwares podem ser a porta de entrada para ataque a redes, roubos de dados e até mesmo danos físicos a equipamentos. Imagem: ShutterStock No entanto, a empresa percebe algumas restrições criadas por essa tecnologia. Por exemplo, ela evita arquivos não confiáveis a acessar fontes confiáveis. Administradores talvez precisem ativar a função se um usuário quiser acessar os arquivos além desses limites. E mais, os macros e controles do ActiveX ficam desativados com o Application Guard para o Office 365.O que pode ser seguro também pode criar novos processos, como ter que pedir autorização para o departamento de TI para abrir arquivos recebidos de novas fontes, por exemplo, ao receber um documento ou apresentação enviada por um novo cliente, ou até mesmo um novo usuário/funcionário recém cadastrado no sistema.É um pequeno preço a se pagar por uma função de segurança nunca antes imaginada antes da tecnologia de contêineres.Via: ZDNet

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