{"id":2095,"date":"2025-12-09T16:29:28","date_gmt":"2025-12-09T19:29:28","guid":{"rendered":"https:\/\/hackerrangers.siteup.dev\/?p=2095"},"modified":"2025-12-09T16:29:28","modified_gmt":"2025-12-09T19:29:28","slug":"learn-about-blockchain-scams-and-frauds","status":"publish","type":"post","link":"https:\/\/hackerrangers.siteup.dev\/pt\/cybersecurity\/learn-about-blockchain-scams-and-frauds\/","title":{"rendered":"Segura? Talvez nem tanto! Conhe\u00e7a golpes e fraudes na blockchain"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Sendo o pilar que sustenta desde o cl\u00e1ssico bitcoin at\u00e9 todas as \u201cinven\u00e7\u00f5es\u201d da criptoeconomia atual (tokens comuns, tokens n\u00e3o fung\u00edveis e at\u00e9 mesmo outras criptomoedas), a tecnologia blockchain sempre foi encarada como uma verdadeira revolu\u00e7\u00e3o para a web. Ela funciona como uma esp\u00e9cie de livro-raz\u00e3o que facilita o registro de transa\u00e7\u00f5es e controle de ativos de forma imut\u00e1vel em uma determinada rede de neg\u00f3cios, garantindo informa\u00e7\u00f5es transparentes e maior seguran\u00e7a para os envolvidos. Com o uso da criptografia para registrar transa\u00e7\u00f5es e informa\u00e7\u00f5es, que s\u00f3 ser\u00e3o compartilhadas com quem tem acesso autorizado, essas redes foram encaradas como a maior ferramenta do princ\u00edpio de n\u00e3o rep\u00fadio na seguran\u00e7a da informa\u00e7\u00e3o.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pareceu confuso? Na pr\u00e1tica, isso significa que, com o blockchain, n\u00e3o ter\u00edamos d\u00favidas sobre a autenticidade e a veracidade de algo, j\u00e1 que, em teoria, nem um agente mal-intencionado e nem mesmo um administrador pode alterar as informa\u00e7\u00f5es disponibilizadas. Jo\u00e3o \u00e9 dono daquele ativo digital e ponto final. A certid\u00e3o de nascimento de Maria \u00e9 leg\u00edtima e ponto final. Em vez de registros localizados, a tecnologia prop\u00f5e a descentraliza\u00e7\u00e3o no processo de valida\u00e7\u00e3o da mesma informa\u00e7\u00e3o, o que dificultaria muito a aplica\u00e7\u00e3o de golpes e fraudes na pr\u00f3xima gera\u00e7\u00e3o da internet.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Na pr\u00e1tica, por\u00e9m, nem tudo s\u00e3o flores. De uns tempos para c\u00e1, criminosos j\u00e1 encontraram diversas maneiras de burlar sistemas baseados em blockchain para finalidades nefastas, incluindo o roubo de ativos digitais. De acordo com um relat\u00f3rio divulgado em 2022, apenas no mencionado ano, o principal ecossistema da web 3.0 perdeu nada menos do que US$ 3,9 bilh\u00f5es para fraudes de criptoeconomia \u2014 e, com a populariza\u00e7\u00e3o das criptomoedas, a tend\u00eancia \u00e9 que tais danos aumentem em 2023.<\/span><\/p>\n<h2><b>Alguns golpes populares<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Alguns dos tipos mais comuns de ataques registrados v\u00e3o de invas\u00f5es ao sistema de casas de c\u00e2mbio de criptomoedas com ataques de for\u00e7a bruta at\u00e9 explora\u00e7\u00f5es de vulnerabilidades no DeFi, um dos protocolos mais populares do momento e que usa como base a rede blockchain Ethereum. Neste \u00faltimo tipo de ataque, os atores maliciosos exploram a natureza aberta do c\u00f3digo-fonte do protocolo, al\u00e9m da manipula\u00e7\u00e3o de erros l\u00f3gicos em contratos inteligentes. Dessa forma, bilh\u00f5es de d\u00f3lares em ativos digitais ficam vulner\u00e1veis e podem ser desviados.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Claro, os cibercriminosos tamb\u00e9m se aproveitam da t\u00e3o conhecida engenharia social. Esquemas de pir\u00e2mides, campanhas de phishing, falsas casas de c\u00e2mbio, aplica\u00e7\u00f5es de carteiras digitais infectadas com malwares e at\u00e9 mesmo ataques <a href=\"https:\/\/hackerrangers.siteup.dev\/pt\/cybersecurity\/understanding-the-classic-and-dangerous-man-in-the-middle-attack\/\">man-in-the-middle<\/a> podem ser usados para burlar a seguran\u00e7a de redes blockchain. Um golpe que est\u00e1 se tornando popular \u00e9 o \u201crug pull\u201d, no qual os meliantes criam um novo projeto de NFTs, aguardam at\u00e9 que os tokens atinjam um bom valor de mercado e depois desaparecem com todos eles.<\/span><\/p>\n<h2><b>Temos uma lei, mas\u2026 Funciona?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Vale a pena observar que, embora ainda seja desconhecida por muitos, o Brasil possui, desde dezembro de 2022, uma legisla\u00e7\u00e3o (Lei n\u00ba 14.478\/2022) que disp\u00f5e sobre \u201cdiretrizes a serem observadas na presta\u00e7\u00e3o de servi\u00e7os de ativos virtuais e na regulamenta\u00e7\u00e3o das prestadoras de servi\u00e7os de ativos virtuais\u201d. Contudo, especialistas apontam que o texto \u00e9 insuficiente para regulamentar o setor e proteger o internauta brasileiro, ou sequer servir como apoio jur\u00eddico caso algu\u00e9m seja v\u00edtima de um golpe mais elaborado explorando redes blockchain.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A orienta\u00e7\u00e3o, por enquanto, continua sendo a mesma: ter bastante cautela se for investir na criptoeconomia, buscar o m\u00e1ximo de informa\u00e7\u00f5es poss\u00edveis sobre o assunto e n\u00e3o ir com muita sede ao pote enquanto a tecnologia que sustenta tal universo n\u00e3o est\u00e1 t\u00e3o madura.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>As the pillar that supports everything from the classic Bitcoin to all the latest crypto economy &#8220;inventions&#8221; (common tokens, non-fungible tokens, and even other cryptocurrencies), blockchain technology has always been seen as a true web revolution. It works like a ledger, facilitating the immutable registration of transactions and asset control in a given business network, [&hellip;]<\/p>\n","protected":false},"author":4009,"featured_media":2096,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"categories":[23],"tags":[103,64,83],"class_list":["post-2095","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cybersecurity","tag-blockchain","tag-cybersecurity","tag-scams"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Learn about blockchain scams and frauds | Hacker Rangers<\/title>\n<meta name=\"description\" content=\"Blockchain promises security, but scams persist. Learn how criminals exploit vulnerabilities, deceive investors, and steal crypto assets.\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Learn about blockchain scams and frauds | Hacker Rangers\" \/>\n<meta property=\"og:description\" content=\"Blockchain promises security, but scams persist. 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