{"id":155764,"date":"2025-01-01T10:17:00","date_gmt":"2025-01-01T18:17:00","guid":{"rendered":"https:\/\/blog.everpuredata.com\/?p=155764"},"modified":"2025-02-19T15:48:24","modified_gmt":"2025-02-19T23:48:24","slug":"what-are-air-gaps-and-are-they-effective-data-security-strategies","status":"publish","type":"post","link":"https:\/\/blog.everpuredata.com\/pt-br\/perspectives\/what-are-air-gaps-and-are-they-effective-data-security-strategies\/","title":{"rendered":"O que s\u00e3o lacunas de ar e estrat\u00e9gias eficazes de seguran\u00e7a de dados?"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column has-medium-font-size is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\">\n<div class=\"wp-block-group pdf-print-hide is-content-justification-right is-nowrap is-layout-flex wp-container-core-group-is-layout-f726d978 wp-block-group-is-layout-flex\"><div class=\"pdfprnt-buttons\"><a href=\"https:\/\/blog.everpuredata.com\/pt-br\/wp-json\/wp\/v2\/posts\/155764?print=pdf\" class=\"pdfprnt-button pdfprnt-button-pdf\" target=\"_blank\" ><img decoding=\"async\" src=\"https:\/\/blog.everpuredata.com\/wp-content\/plugins\/pdf-print-pro\/images\/pdf.png?1953174090\" alt=\"image_pdf\" title=\"Ver PDF\" \/><\/a><a href=\"https:\/\/blog.everpuredata.com\/pt-br\/wp-json\/wp\/v2\/posts\/155764?print=print\" class=\"pdfprnt-button pdfprnt-button-print\" target=\"_blank\" ><img decoding=\"async\" src=\"https:\/\/blog.everpuredata.com\/wp-content\/plugins\/pdf-print-pro\/images\/print.png?245231721\" alt=\"image_print\" title=\"Conte\u00fado de impress\u00e3o\" \/><\/a><\/div>\n<\/div>\n\n\n\n<div id=\"CONTENT\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><em>Essa \u00e9 a parte um de uma s\u00e9rie sobre lacunas de ar e arquiteturas de resili\u00eancia. Leia a segunda parte: <a href=\"https:\/\/blog.everpuredata.com\/perspectives\/bounce-back-faster-with-tiered-backups-and-bunkers\/\" target=\"_blank\" rel=\"noopener\">Sem uma arquitetura de backup em camadas, voc\u00ea \u00e9 realmente resiliente?<\/a><\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">Os atacantes Ransomware s\u00e3o oportunidadedores implac\u00e1veis, mas isso n\u00e3o significa que devemos facilitar o trabalho deles.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ataque os back-offices da Colonial Pipelines. A infraestrutura essencial de g\u00e1s e combust\u00edvel ficou off-line por mais de <i>quatro dias<\/i>. Uma investiga\u00e7\u00e3o revelou que grandes lapsos na seguran\u00e7a facilitaram bastante a invas\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Devemos tornar a vida o mais dif\u00edcil poss\u00edvel para os hackers. Felizmente, h\u00e1 um arsenal de tecnologias e paradigmas de arquitetura para fazer exatamente isso. Uma dessas abordagens \u00e9 chamada de \u201c<b>lacunas de ar<\/b>\u201d, mas elas s\u00e3o uma solu\u00e7\u00e3o para resili\u00eancia cibern\u00e9tica?<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-is-an-air-gap\"><strong>O que \u00e9 uma lacuna de ar?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Uma lacuna de ar \u00e9 uma linguagem de marketing obrigat\u00f3ria ou ambas? Vamos dar uma olhada.<\/p>\n\n\n\n<div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Tradicionalmente, uma lacuna era f\u00edsica, usando backups baseados em fita ou sistemas externos, separados com conectividade f\u00edsica zero. Os administradores criam uma conex\u00e3o entre o sistema de produ\u00e7\u00e3o e o sistema com ar, como uma ponte de extra\u00e7\u00e3o. A ponte cai quando os dados s\u00e3o transferidos e depois volta para o resto do tempo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hoje em dia, a defini\u00e7\u00e3o e o conceito de \u201clacunas de ar\u201d est\u00e3o evoluindo al\u00e9m do tradicional \u201cisolamento de rede f\u00edsica\u201d para ser um componente valioso de uma estrat\u00e9gia de seguran\u00e7a de dados eficaz e eficiente. As lacunas de ar modernas se concentram mais na <b>separa\u00e7\u00e3o l\u00f3gica<\/b>, principalmente com controles de rede. Basicamente, s\u00e3o topologias de design de rede que separam redes de produ\u00e7\u00e3o e backup. Alguns fornecedores adaptaram o conceito em:<b><i><\/i><\/b><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><b>Espa\u00e7os de ar \u201cvirtuais\u201d.<\/b><b><i> <\/i><\/b>Eles foram introduzidos pela primeira vez por fornecedores que queriam se concentrar na separa\u00e7\u00e3o l\u00f3gica da rede e vender um conjunto duplicado de infraestrutura com recursos Write Once, Read Many (WORM). A rede entre os locais abriria e fecharia periodicamente. Isso foi fornecido por meio de consultoria extensiva e Professional Services.<\/li>\n\n\n\n<li><b>Espa\u00e7o livre \u201coperacional\u201d.<\/b> Quando a \u201clacuna de ar virtual\u201d teve uma recep\u00e7\u00e3o fraca dos clientes (ou seja, baixas vendas), as lacunas de ar operacionais foram criadas em uma tentativa de reduzir os custos de infraestrutura e adicionar automa\u00e7\u00e3o adicional em torno da configura\u00e7\u00e3o e manuten\u00e7\u00e3o.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Em suas ess\u00eancias, ambas as abordagens geralmente dependem de recursos WORM desenvolvidos para requisitos regulat\u00f3rios e de conformidade.*<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O objetivo de uma lacuna de ar \u00e9 isolar dados cr\u00edticos de redes locais e \u00e1reas de produ\u00e7\u00e3o mais vulner\u00e1veis a ataques. Ao permitir a entrada de dados da rede de produ\u00e7\u00e3o em intervalos regulares, os backups s\u00e3o atualizados regularmente, mas os dois lados nem sempre est\u00e3o conectados. Esses intervalos podem acontecer uma vez por dia ou em qualquer frequ\u00eancia definida.<\/p>\n\n\n\n<div class=\"wp-block-group mobile-darken-5 box-shadow position-relative is-layout-flow wp-block-group-is-layout-flow has-background\" style=\"min-height:164px;margin-top:20px;margin-bottom:20px;padding-top:20px;padding-right:20px;padding-bottom:10px;padding-left:20px;background-image:url(&apos;https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2024\/09\/team-sport-resilience.png&apos;);background-position:81% 44%;background-size:cover;\">\n<div class=\"wp-block-columns are-vertically-aligned-center gap-0 banner-cta-until-blocks flex-direction-column is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center flex-basisis is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:600px\">\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-f4c6b382 wp-block-group-is-layout-flex\">\n<h2 class=\"wp-block-heading has-base-color has-text-color has-link-color wp-elements-5e3468979e6c1503c5a25d2b66efdc7b\" id=\"h-cyber-resilience-takes-teamwork\" style=\"font-size:clamp(1.146rem, 1.146rem + ((1vw - 0.2rem) * 1.09), 1.8rem);line-height:1.2\">A resili\u00eancia cibern\u00e9tica exige trabalho em equipe<\/h2>\n\n\n\n<p class=\"has-base-color has-text-color has-link-color wp-elements-c5e942b850f95f52d63f9584b0f4f648 wp-block-paragraph\" style=\"font-size:clamp(0.875rem, 0.875rem + ((1vw - 0.2rem) * 0.208), 1rem);\">Saiba como as equipes de TI e seguran\u00e7a podem colaborar com facilidade para reduzir as vulnerabilidades cibern\u00e9ticas e evitar ataques. Obtenha os resultados da pesquisa e perspectivas de analistas para aumentar a resili\u00eancia cibern\u00e9tica.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-content-justification-left is-layout-flex wp-container-core-group-is-layout-b89078f4 wp-block-group-is-layout-flex\" style=\"padding-top:10px;padding-right:10px;padding-bottom:10px;padding-left:10px\">\n<div class=\"wp-block-buttons is-content-justification-left is-layout-flex wp-container-core-buttons-is-layout-76f33ee1 wp-block-buttons-is-layout-flex block-visibility-hide-medium-screen block-visibility-hide-small-screen\" id=\"banner-cta-until-blocks-button\" style=\"margin-top:10px;margin-bottom:10px\">\n<div class=\"wp-block-button has-custom-font-size banner-cta-until-blocks-button\" style=\"font-size:clamp(0.875rem, 0.875rem + ((1vw - 0.2rem) * 0.208), 1rem);line-height:1.2\"><a class=\"wp-block-button__link has-secondary-background-color has-background has-text-align-center wp-element-button\" href=\"https:\/\/www.purestorage.com\/cyber-resilience.html\" style=\"padding-top:10px;padding-right:14px;padding-bottom:10px;padding-left:14px\" target=\"_blank\" rel=\"noreferrer noopener\">Saiba como<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-the-air-gap-promise\"><strong>A promessa da lacuna de ar<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A ideia \u00e9 que, sem uma conex\u00e3o aberta entre os dois locais, as amea\u00e7as teoricamente n\u00e3o t\u00eam ponte. E sem calcular n\u00f3s, os sistemas com ar s\u00e3o ainda menos acess\u00edveis. Alguns provedores de armazenamento de dados consideram esses cofres de recupera\u00e7\u00e3o com ar como uma inova\u00e7\u00e3o moderna para manter os dados seguros. Uma lacuna de ar pode at\u00e9 ser algo simples e program\u00e1tico, como um firewall.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><b>Em geral, as lacunas de ar <\/b><b><i>podem<\/i><\/b><b> oferecer prote\u00e7\u00e3o aprimorada ao:<\/b><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Oferecendo mais seguran\u00e7a do que a arquitetura de backup tradicional.<\/li>\n\n\n\n<li>Limitar a capacidade de dissemina\u00e7\u00e3o de malware.<\/li>\n\n\n\n<li>Criar mais trabalho para que os hackers cheguem aos dados com lacunas de ar.<\/li>\n\n\n\n<li>Melhorar as chances de se recuperar de um ataque<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">E ap\u00f3s o ataque, as lacunas de ar tamb\u00e9m podem ser ben\u00e9ficas para recuperar dados n\u00e3o comprometidos. Mas h\u00e1 mais a considerar.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-the-reality-of-air-gaps\"><strong>A realidade<\/strong> das lacunas de ar<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e1 alguns problemas a serem considerados com lacunas de ar. A primeira \u00e9 a acessibilidade. Depois de um ataque, quando cada segundo conta, um cofre fechado n\u00e3o apenas dificultou o acesso aos dados para hackers, mas tamb\u00e9m para voc\u00ea. A segunda \u00e9 o trabalho envolvido para manter lacunas de ar. Quanto mais substancial uma lacuna de ar se torna com scripts complexos, mais cuidado e alimenta\u00e7\u00e3o ela requer para permanecer operacional e eficaz.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><b>Outros problemas:<\/b><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Eles n\u00e3o s\u00e3o 100% imunes a ataques.<\/li>\n\n\n\n<li>Eles podem ser caros de implementar e operar, e dif\u00edceis de gerenciar e manter.<\/li>\n\n\n\n<li>Eles n\u00e3o s\u00e3o superescal\u00e1veis e podem ser mais lentos para recuperar grandes volumes de dados.<\/li>\n\n\n\n<li>Eles n\u00e3o resolvem amea\u00e7as internas ou credenciais comprometidas de administradores de armazenamento ou backup.<\/li>\n\n\n\n<li>A recupera\u00e7\u00e3o de grandes volumes de arquivos leva muito tempo quando voc\u00ea precisa atender a RPOs rigorosos, e classificar esses dados para recupera\u00e7\u00e3o em camadas exige tempo e esfor\u00e7o.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">As estrat\u00e9gias de seguran\u00e7a com ar tamb\u00e9m n\u00e3o conseguem resolver completamente os problemas de <b>confiabilidade<\/b> e <b>velocidade<\/b>, os dois fatores mais importantes para uma recupera\u00e7\u00e3o bem-sucedida. O que, ent\u00e3o, \u00e9 uma solu\u00e7\u00e3o completa que lida com simplicidade, confiabilidade <i>e<\/i> velocidade?<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-pure-s-approach-to-air-gap\">Abordagem da Pure para lacunas de ar<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nossa vis\u00e3o moderna sobre a lacuna de ar virtual \u00e9 uma implementa\u00e7\u00e3o de n\u00edvel superior que oferece todos os benef\u00edcios de um bunker de dados com isolamento de ar, mas com uma diferen\u00e7a importante: \u00e9 <b>mais simples E mais r\u00e1pida<\/b>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Veja como funciona:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O recurso do<a href=\"https:\/\/blog.everpuredata.com\/products\/how-to-protect-your-data-from-ransomware-with-safemode-snapshots\/\"> SafeMode (SureMode) da Pure Storage <\/a>\u00e9 a chave. O SafeMode cria um enclave seguro, a partir do qual os snapshots n\u00e3o podem ser exclu\u00eddos, seja manualmente por uma pessoa ou por meio de uma abordagem program\u00e1tica. Al\u00e9m disso, h\u00e1 um elemento humano adicional al\u00e9m disso. Para erradicar os snapshots manualmente, a solu\u00e7\u00e3o da Pure <b>exige suporte interativo em tempo real<\/b>, adicionando uma camada extra de prote\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Depois, h\u00e1 a simplicidade. A automa\u00e7\u00e3o integrada e os temporizadores predefinidos garantem tranquilidade sem o trabalho extra necess\u00e1rio para manter lacunas de ar program\u00e1ticas ou f\u00edsicas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Finalmente, \u00e9 triste, mas verdade: a menos que suas restaura\u00e7\u00f5es de dados sejam r\u00e1pidas o suficiente para evitar grandes impactos organizacionais, financeiros e \u00e0 reputa\u00e7\u00e3o, todo o trabalho que voc\u00ea fez em rela\u00e7\u00e3o \u00e0 prote\u00e7\u00e3o n\u00e3o tem valor. Independentemente da plataforma ou da tecnologia subjacente (por exemplo, snapshots baseados em ponteiro ou taxa de transfer\u00eancia l\u00edder do setor), a Pure pode oferecer velocidades de restaura\u00e7\u00e3o que n\u00e3o manter\u00e3o sua empresa esperando.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2021\/05\/TSK-901-Air-Gap-graphic-728x409.webp\"><img loading=\"lazy\" decoding=\"async\" width=\"728\" height=\"409\" src=\"https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2021\/05\/TSK-901-Air-Gap-graphic-728x409.webp\" alt=\"O que &#xE9; uma lacuna de ar?\" class=\"wp-image-98495\" srcset=\"https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2021\/05\/TSK-901-Air-Gap-graphic-728x409.webp 728w, https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2021\/05\/TSK-901-Air-Gap-graphic-1024x576.webp 1024w, https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2021\/05\/TSK-901-Air-Gap-graphic-768x432.webp 768w, https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2021\/05\/TSK-901-Air-Gap-graphic-1536x864.webp 1536w, https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2021\/05\/TSK-901-Air-Gap-graphic.webp 1650w\" sizes=\"auto, (max-width: 728px) 100vw, 728px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-part-2-bunkered-tiered-backup-architectures\"><b>Parte 2: Arquiteturas de backup em camadas e em cluster<\/b><\/h2>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<ol class=\"wp-block-list\">\n<li>https:\/\/www.nytimes.com\/2021\/05\/10\/us\/politics\/pipeline-hack-darkside.html<img loading=\"lazy\" decoding=\"async\" width=\"1\" height=\"1\" class=\"nc_pixel\" src=\"https:\/\/pixel.welcomesoftware.com\/px.gif?key=YXJ0aWNsZT0xYWUwZWQzZmIyNjExMWViOTI1ZDM3YTQ0MTFiMzMwNA==\" alt=\"\"\/><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">*Os produtos da Pure n\u00e3o s\u00e3o compat\u00edveis com recursos de WORM.<\/p>\n\n\n\n<div role=\"group\">\n<div role=\"group\" aria-label=\"Message shortcuts\" data-qa=\"message-actions\">\u00a0<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\"><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>O que s\u00e3o lacunas de ar e como elas funcionam? Veja a seguir essa abordagem de seguran\u00e7a e o que ela pode fazer pela sua organiza\u00e7\u00e3o.<\/p>\n","protected":false},"author":439,"featured_media":155769,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[14547],"tags":[14557,14562,15517],"content-position":[],"ppma_author":[14179],"class_list":["post-155764","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-perspectives","tag-cybersecurity-pt-br","tag-pure-perspectives-pt-br","tag-ransomware-pt-br"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>O que s\u00e3o lacunas de ar e elas s\u00e3o eficazes? | Everpure Blog<\/title>\n<meta name=\"description\" content=\"O que s\u00e3o lacunas de ar e como elas funcionam? 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