{"id":98021,"date":"2019-12-12T13:53:19","date_gmt":"2019-12-12T21:53:19","guid":{"rendered":"\/blogs\/?p=98021"},"modified":"2022-03-12T05:40:34","modified_gmt":"2022-03-12T13:40:34","slug":"15-sugestoes-para-uma-melhor-seguranca-das-senhas","status":"publish","type":"post","link":"https:\/\/www.mcafee.com\/blogs\/pt-pt\/internet-security\/15-sugestoes-para-uma-melhor-seguranca-das-senhas\/","title":{"rendered":"15 sugest\u00f5es para uma melhor seguran\u00e7a das senhas"},"content":{"rendered":"

Apesar das inova\u00e7\u00f5es, como as impress\u00f5es digitais e o reconhecimento facial para iniciar sess\u00e3o nos seus dispositivos, as senhas ainda predominam para iniciar sess\u00e3o nas suas contas. N\u00e3o \u00e9 de admirar que muitos usu\u00e1rios da Internet declarem ter “fatiga de senhas”, em que um funcion\u00e1rio comum gasta cerca de <\/span>10 horas por ano<\/span><\/a>\u00a0apenas\u00a0a\u00a0iniciar\u00a0sess\u00e3o\u00a0nas\u00a0suas\u00a0contas.<\/span>\u00a0<\/span><\/p>\n

Mas\u00a0como\u00a0uns\u00a0alarmantes\u00a0<\/span>81% das fugas de dados<\/span><\/a> ainda s\u00e3o causadas por hackers que aproveitam senhas fracas ou reutilizadas, temos de encontrar uma melhor forma de tornar as senhas mais seguras. <\/span>Primeiro,\u00a0aprenda\u00a0como\u00a0e\u00a0porqu\u00ea\u00a0os\u00a0hackers\u00a0t\u00eam\u00a0sucesso\u00a0em\u00a0adivinhar\u00a0as\u00a0senhas.<\/span>\u00a0<\/span><\/p>\n

Como\u00a0os\u00a0hackers\u00a0obt\u00eam\u00a0acesso:<\/span><\/b>\u00a0<\/span><\/h2>\n

Ataques\u00a0de\u00a0dicion\u00e1rio<\/span><\/b>\u00a0<\/span><\/h3>\n

\u00c9\u00a0quando\u00a0um\u00a0atacante\u00a0utiliza\u00a0um script que \u00e9\u00a0executado\u00a0com as\u00a0palavras\u00a0do\u00a0dicion\u00e1rio,\u00a0combinando-as com\u00a0n\u00fameros\u00a0e\u00a0outras\u00a0varia\u00e7\u00f5es\u00a0at\u00e9\u00a0descobrirem\u00a0a\u00a0senha. Por\u00a0isso\u00a0\u00e9\u00a0muito\u00a0importante\u00a0ter\u00a0uma\u00a0senha\u00a0complexa\u00a0que\u00a0n\u00e3o\u00a0possa\u00a0ser\u00a0adivinhada\u00a0<\/span>numa fra\u00e7\u00e3o de segundo<\/span><\/a>\u00a0utilizando\u00a0ferramentas de\u00a0descodifica\u00e7\u00e3o\u00a0como\u00a0<\/span>John the Ripper<\/span><\/a>\u00a0transferidas\u00a0da Internet.<\/span>\u00a0<\/span><\/p>\n

\u00a0<\/span>Para\u00a0impedir\u00a0os\u00a0ataques\u00a0de\u00a0dicion\u00e1rio, evite\u00a0combina\u00e7\u00f5es\u00a0de\u00a0teclas\u00a0consecutivas,\u00a0como\u00a0\u201cqwerty\u201d\u00a0ou\u00a0\u201casdfg\u201d.\u00a0N\u00e3o\u00a0utilize\u00a0palavras\u00a0do\u00a0dicion\u00e1rio,\u00a0termos\u00a0de\u00a0g\u00edria,\u00a0erros\u00a0ortogr\u00e1ficos\u00a0comuns\u00a0ou\u00a0palavras\u00a0escritas\u00a0inversamente.\u00a0<\/span>
\n\u00a0<\/span><\/p>\n

Decifrar\u00a0perguntas\u00a0de\u00a0seguran\u00e7a<\/span><\/b>\u00a0<\/span><\/h3>\n

Quando\u00a0clica\u00a0numa\u00a0liga\u00e7\u00e3o\u00a0de “Palavra-passe\u00a0esquecida”,\u00a0tem\u00a0de responder a\u00a0uma\u00a0pergunta\u00a0ou\u00a0a\u00a0uma\u00a0s\u00e9rie\u00a0de\u00a0perguntas. Evite\u00a0respostas\u00a0que\u00a0utilizem\u00a0nomes\u00a0de\u00a0familiares\u00a0ou\u00a0animais\u00a0de\u00a0estima\u00e7\u00e3o\u00a0e\u00a0outras\u00a0informa\u00e7\u00f5es\u00a0que\u00a0podem\u00a0ser\u00a0encontradas\u00a0no\u00a0seu\u00a0perfil\u00a0de redes\u00a0sociais.\u00a0Lembre-se, as\u00a0respostas\u00a0n\u00e3o\u00a0t\u00eam\u00a0de ser\u00a0verdadeiras,\u00a0apenas\u00a0algo\u00a0que\u00a0memoriza, por\u00a0isso\u00a0escolha\u00a0respostas\u00a0aleat\u00f3rias\u00a0que\u00a0enganem\u00a0os\u00a0hackers.<\/span>\u00a0<\/span>\u00a0<\/span><\/p>\n

Palavras-passe simples e reutiliza\u00e7\u00e3o de senhas:<\/span><\/b><\/h3>\n

Apesar\u00a0de\u00a0parecer\u00a0incr\u00edvel, \u201c123456\u201d e \u201c111111\u201d\u00a0ainda\u00a0s\u00e3o\u00a0algumas\u00a0das\u00a0<\/span>senhas mais populares<\/span><\/a>\u00a0utilizadas, o que\u00a0permite\u00a0que\u00a0sejam\u00a0adivinhadas\u00a0imediatamente.\u00a0Em\u00a0vez\u00a0disso,\u00a0escolha\u00a0algo\u00a0complexo\u00a0e\u00a0n\u00e3o\u00a0utilize\u00a0informa\u00e7\u00f5es\u00a0pessoais,\u00a0como\u00a0o\u00a0seu\u00a0nome,\u00a0idade, data de\u00a0nascimento,\u00a0nome\u00a0do\u00a0seu\u00a0filho,\u00a0nome\u00a0de\u00a0animais\u00a0de\u00a0estima\u00e7\u00e3o\u00a0ou\u00a0a\u00a0sua\u00a0cor\u00a0favorita, que\u00a0podem\u00a0ser\u00a0facilmente\u00a0adivinhadas.<\/span>\u00a0<\/span><\/p>\n

E\u00a0j\u00e1\u00a0deve\u00a0saber que\u00a0nunca\u00a0deve\u00a0reutilizar\u00a0senhas,\u00a0especialmente\u00a0para\u00a0contas\u00a0de email,\u00a0contas\u00a0de\u00a0bancos\u00a0online e\u00a0contas\u00a0de redes\u00a0sociais\u00a0porque\u00a0podem\u00a0causar\u00a0o\u00a0roubo\u00a0de\u00a0identidade.\u00a0Ainda\u00a0assim,\u00a0<\/span>mais de metade<\/span><\/a>\u00a0de\u00a0n\u00f3s\u00a0ainda\u00a0as\u00a0utiliza.<\/span>\u00a0<\/span><\/p>\n

Engenharia\u00a0social<\/span><\/b>\u00a0<\/span><\/h3>\n

\u00a0<\/span>A\u00a0engenharia\u00a0social \u00e9 um\u00a0tipo\u00a0de\u00a0mentira\u00a0elaborada. Uma\u00a0alternativa\u00a0aos\u00a0hackers\u00a0tradicionais,\u00a0trata-se de\u00a0manipular\u00a0outras\u00a0pessoas\u00a0para\u00a0realizarem\u00a0determinadas\u00a0a\u00e7\u00f5es\u00a0ou\u00a0que\u00a0divulguem\u00a0informa\u00e7\u00f5es\u00a0confidenciais.<\/span>\u00a0<\/span><\/p>\n

\u00a0<\/span>Como\u00a0tornar\u00a0as\u00a0senhas\u00a0mais\u00a0seguras:<\/span><\/b>\u00a0<\/span><\/h3>\n
    \n
  1. Utilize um<\/span>gestor desenhas<\/span><\/b>\u00a0que\u00a0cria\u00a0senhas\u00a0fortes e\u00a0complexas\u00a0por\u00a0si\u00a0e\u00a0memoriza-as. Se\u00a0escolher\u00a0um\u00a0<\/span>software de seguran\u00e7a robusto<\/span><\/a>,\u00a0geralmente\u00a0inclui\u00a0um gestor de\u00a0senhas.<\/span>\u00a0<\/span><\/li>\n<\/ol>\n
      \n
    1. Sen\u00e3outilizar\u00a0um gestor de\u00a0senhas,\u00a0aprenda\u00a0como\u00a0<\/span>utilizar\u00a0frases\u00a0de\u00a0acesso<\/span><\/b>\u00a0que\u00a0s\u00e3o\u00a0mais\u00a0longas\u00a0e\u00a0complexas\u00a0do que\u00a0uma\u00a0senha\u00a0tradicional, mas\u00a0mais\u00a0f\u00e1ceis\u00a0de\u00a0memorizar. Uma\u00a0frase\u00a0de\u00a0acesso\u00a0\u00e9\u00a0constitu\u00edda\u00a0por\u00a0uma\u00a0cadeia\u00a0de\u00a0palavras\u00a0intercaladas\u00a0por\u00a0n\u00fameros\u00a0e\u00a0s\u00edmbolos. Por\u00a0exemplo, a\u00a0frase\u00a0\u201cMoby Dick de Melville\u00a0Tem\u00a0Mais\u00a0de 94.000\u00a0palavras\u201d\u00a0pode\u00a0ser\u00a0alterada\u00a0para MDMtmd9*4000plvs!!.<\/span>\u00a0<\/span><\/li>\n<\/ol>\n
        \n
      1. Tamb\u00e9mpode\u00a0utilizar\u00a0o\u00a0teclado\u00a0como\u00a0uma\u00a0palete\u00a0para\u00a0criar\u00a0formas. Por\u00a0exemplo,\u00a0experimente\u00a0desenhar\u00a0%tgbHU8* no\u00a0seu\u00a0teclado. \u00c9 um V. Pode\u00a0formar\u00a0a\u00a0letra\u00a0V\u00a0come\u00e7ando\u00a0com\u00a0qualquer\u00a0das\u00a0teclas\u00a0da fila superior. Para\u00a0alterar\u00a0estas\u00a0senhas\u00a0periodicamente,\u00a0pode\u00a0passar\u00a0para as\u00a0letras\u00a0adjacentes. Utilize W para ser\u00a0ainda\u00a0mais\u00a0dif\u00edcil.<\/span>\u00a0<\/span><\/li>\n<\/ol>\n
          \n
        1. Certifique-se de queutiliza\u00a0senhas\u00a0diferentes\u00a0para\u00a0cada\u00a0uma\u00a0das\u00a0sua\u00a0contas.<\/span>
          \n\u00a0<\/span><\/li>\n
        2. Certifique-se de queningu\u00e9m\u00a0o\u00a0observa\u00a0quando\u00a0introduz\u00a0a\u00a0sua\u00a0senha\u00a0Termine\u00a0sempre\u00a0a\u00a0sess\u00e3o\u00a0se\u00a0deixar\u00a0o\u00a0seu\u00a0dispositivo\u00a0com\u00a0gente\u00a0por\u00a0perto. Basta\u00a0alguns\u00a0segundos\u00a0para\u00a0roubarem\u00a0ou\u00a0alterarem\u00a0a\u00a0sua\u00a0senha.<\/span>
          \n\u00a0<\/span><\/li>\n
        3. Utilize software deseguran\u00e7a\u00a0abrangente<\/span><\/b>\u00a0e\u00a0mantenha-o\u00a0atualizado\u00a0para\u00a0evitar\u00a0<\/span>keyloggers<\/span><\/a>\u00a0e outro\u00a0<\/span>malware<\/span><\/a>.<\/span>\u00a0<\/span><\/li>\n<\/ol>\n
            \n
          1. Eviteintroduzirsenhas\u00a0em\u00a0computadores\u00a0que\u00a0n\u00e3o\u00a0controla\u00a0(como\u00a0computadores\u00a0num\u00a0cibercaf\u00e9\u00a0ou\u00a0biblioteca),\u00a0podem\u00a0ter\u00a0malware\u00a0instalado\u00a0que\u00a0pode\u00a0roubar\u00a0a\u00a0sua\u00a0senhas.<\/span>\u00a0<\/span><\/li>\n<\/ol>\n
              \n
            1. Eviteintroduzirsenhas\u00a0quando\u00a0utiliza\u00a0redes Wi-Fi\u00a0inseguras\u00a0(como\u00a0redes num\u00a0aeroporto\u00a0ou\u00a0num caf\u00e9)\u00a0porque\u00a0os\u00a0hackers\u00a0podem\u00a0intercetar\u00a0as\u00a0senhas\u00a0e dados\u00a0enviados\u00a0atrav\u00e9s\u00a0de redes\u00a0inseguras.<\/span>\u00a0<\/span><\/li>\n<\/ol>\n
                \n
              1. N\u00e3opartilhe\u00a0a\u00a0sua\u00a0palavra-passe\u00a0com\u00a0ningu\u00e9m. O\u00a0seu\u00a0amigo\u00a0pode\u00a0deixar\u00a0de ser\u00a0seu\u00a0amigo no\u00a0futuro.\u00a0mantenha\u00a0as\u00a0suas\u00a0senhas\u00a0seguras\u00a0guardando-as\u00a0apenas\u00a0para\u00a0voc\u00ea.<\/span>\u00a0<\/span><\/li>\n<\/ol>\n

                Dependendo\u00a0da\u00a0sensibilidade\u00a0das\u00a0informa\u00e7\u00f5es\u00a0que\u00a0est\u00e1\u00a0a\u00a0proteger,\u00a0deve\u00a0alterar\u00a0as\u00a0suas\u00a0senhas\u00a0periodicamente.<\/span><\/p>\n

                  \n
                1. Podeanotaras\u00a0suas\u00a0senhas,\u00a0basta\u00a0mant\u00ea-las\u00a0afastadas\u00a0do\u00a0computador\u00a0e\u00a0misturadas\u00a0com outros\u00a0n\u00fameros\u00a0e\u00a0letras\u00a0para\u00a0n\u00e3o\u00a0parecerem\u00a0uma\u00a0senha.<\/span>\u00a0<\/span><\/li>\n<\/ol>\n
                    \n
                  1. Tamb\u00e9mpode\u00a0escrever\u00a0uma\u00a0\u201cfolha\u00a0de\u00a0sugest\u00f5es\u201d que\u00a0lhe\u00a0d\u00e1\u00a0uma\u00a0pista\u00a0para\u00a0recordar\u00a0a\u00a0sua\u00a0senha,\u00a0mas\u00a0<\/span>que\u00a0n\u00e3o\u00a0contenha\u00a0a\u00a0senha. Por\u00a0exemplo, no\u00a0exemplo\u00a0acima, a\u00a0sua\u00a0folha\u00a0de\u00a0sugest\u00f5es\u00a0podia ser \u201cMelville\u201d<\/span>\u00a0<\/span><\/li>\n<\/ol>\n
                      \n
                    1. Verifiquea\u00a0robustez\u00a0da\u00a0sua\u00a0senha. Se o site\u00a0onde\u00a0se\u00a0est\u00e1\u00a0a\u00a0inscrever\u00a0oferece\u00a0um\u00a0analisador\u00a0de\u00a0robusteza\u00a0da\u00a0senha,\u00a0siga\u00a0as\u00a0indica\u00e7\u00f5es.<\/span>\u00a0<\/span><\/li>\n<\/ol>\n

                      \u00a0<\/span><\/p>\n

                      Robert Siciliano \u00e9 um consultor da McAfee e\u00a0Especialista\u00a0em\u00a0roubo\u00a0de\u00a0identidade.\u00a0Veja-o\u00a0abordar\u00a0<\/span><\/i>como se proteger contra o roubo de identidade\u00a0<\/span><\/i><\/a>em\u00a0CounterIdentityTheft.com.<\/span><\/i>\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

                      Apesar das inova\u00e7\u00f5es, como as impress\u00f5es digitais e o reconhecimento facial para iniciar sess\u00e3o nos seus dispositivos, as senhas ainda…<\/p>\n","protected":false},"author":674,"featured_media":97873,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[14413,14395,14389],"tags":[16100,16101],"coauthors":[3973,16332],"class_list":["post-98021","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-family-safety","category-tips-tricks","category-internet-security","tag-cibercrime","tag-roubo-de-identidade-pt-pt"],"acf":[],"yoast_head":"\n15 sugest\u00f5es para uma melhor seguran\u00e7a das senhas | Blogue da McAfee<\/title>\n<meta name=\"description\" content=\"Apesar das inova\u00e7\u00f5es, como as impress\u00f5es digitais e o reconhecimento facial para iniciar sess\u00e3o nos seus dispositivos, as senhas 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