{"id":119232,"date":"2026-04-10T10:37:04","date_gmt":"2026-04-10T09:37:04","guid":{"rendered":"https:\/\/investx.fr\/pt\/?p=119232"},"modified":"2026-04-10T10:37:06","modified_gmt":"2026-04-10T09:37:06","slug":"ameaca-quantica-bitcoin-solucao","status":"publish","type":"post","link":"https:\/\/investx.fr\/pt\/noticias-cripto\/ameaca-quantica-bitcoin-solucao\/","title":{"rendered":"Amea\u00e7a qu\u00e2ntica ao Bitcoin: Uma solu\u00e7\u00e3o inesperada para proteger a rede"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"uma-defesa-tecnica-massiva-para-proteger-a-rede-bitcoin\">Uma defesa t\u00e9cnica massiva para proteger a rede Bitcoin<\/h2>\n\n\n\n<p>O espectro de um ataque qu\u00e2ntico capaz de quebrar a criptografia do <a href=\"https:\/\/investx.fr\/pt\/investir-criptomoedas\/comprar\/bitcoin\/\">Bitcoin<\/a> paira h\u00e1 anos, amea\u00e7ando o pre\u00e7o do BTC h\u00e1 v\u00e1rios meses. Com efeito, o crash do Bitcoin coincide com a explos\u00e3o das pesquisas no Google sobre <strong>amea\u00e7as qu\u00e2nticas<\/strong>. Trata-se, por isso, de um tema preocupante para os investidores em criptomoedas.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\">THIS IS BIG.<br><br>A Bitcoin developer has built a working prototype that protects your wallet from quantum computers. Even if Bitcoin is forced to shut down part of its own security system to protect itself.<br><br>To understand why this matters you need to understand the problem first.\u2026 <a href=\"https:\/\/t.co\/84xcrrhnqw\">pic.twitter.com\/84xcrrhnqw<\/a><\/p>&mdash; Bull Theory (@BullTheoryio) <a href=\"https:\/\/twitter.com\/BullTheoryio\/status\/2042201836896301221?ref_src=twsrc%5Etfw\">April 9, 2026<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n\n<p>Face a esta urg\u00eancia, <strong>Avihu Levy,<\/strong> investigador na StarkWare, publicou o <strong>Quantum Safe <a href=\"https:\/\/investx.fr\/pt\/aprender-criptomoedas\/cripto\/bitcoin\/\">Bitcoin<\/a> (QSB).<\/strong> Esta solu\u00e7\u00e3o in\u00e9dita permite proteger as transa\u00e7\u00f5es a partir de hoje, substituindo as <strong>assinaturas ECDSA<\/strong> vulner\u00e1veis por provas baseadas em hash.<\/p>\n\n\n\n<p>O grande feito desta inova\u00e7\u00e3o reside na sua integra\u00e7\u00e3o: funciona sob as regras de consenso atuais<strong>.<\/strong> <strong>N\u00e3o h\u00e1 necessidade de um soft fork <\/strong>ou de valida\u00e7\u00e3o por parte dos mineiros, evitando assim os intermin\u00e1veis debates de governan\u00e7a. Para os investidores que receiam uma <strong>queda<\/strong> <strong>brutal<\/strong> associada a uma falha de seguran\u00e7a, esta \u00e9 uma rede de seguran\u00e7a inesperada que mant\u00e9m a solidez da rede.<\/p>\n\n\n\n<p>No entanto, esta proeza t\u00e9cnica transfere a carga da valida\u00e7\u00e3o para uma <strong>pot\u00eancia de c\u00e1lculo externa.<\/strong> Em vez de uma simples assinatura de wallet, os utilizadores devem <strong>externalizar c\u00e1lculos pesados de GPU off-chain.<\/strong> Uma mec\u00e2nica complexa que garante a seguran\u00e7a, mas que transforma cada transfer\u00eancia num verdadeiro desafio t\u00e9cnico.<\/p>\n\n\n\n<p>Tendo em conta a opini\u00e3o dos especialistas em <strong>energia<\/strong>, que indicam que uma crise energ\u00e9tica poder\u00e1 ocorrer nos pr\u00f3ximos anos, isto poder\u00e1 representar um problema grave para o setor da minera\u00e7\u00e3o do ponto de vista dos custos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"200-por-transacao-um-custo-enorme-que-e-razoavel\">200 $ por transa\u00e7\u00e3o: Um custo enorme que \u00e9 razo\u00e1vel?<\/h2>\n\n\n\n<p>Se o an\u00fancio provocou entusiasmo nas redes sociais, a realidade econ\u00f3mica do QSB arrefece rapidamente os \u00e2nimos. Proteger uma transa\u00e7\u00e3o com este m\u00e9todo custa <strong>at\u00e9 200 $ em taxas de c\u00e1lculo de GPU. <\/strong>Um valor proibitivo que torna esta solu\u00e7\u00e3o inutiliz\u00e1vel para transfer\u00eancias di\u00e1rias ou microtransa\u00e7\u00f5es na Lightning Network.<\/p>\n\n\n\n<p>O pr\u00f3prio Avihu Levy classifica esta inova\u00e7\u00e3o como uma &#8220;medida de \u00faltimo recurso&#8221;. Atua, portanto, como um paraquedas de emerg\u00eancia enquanto se aguarda a ativa\u00e7\u00e3o do BIP-360, uma proposta de soft fork mais escal\u00e1vel, mas atolada em anos de atrasos na sua implementa\u00e7\u00e3o. O facto de um especialista como Levy ter encontrado apenas uma solu\u00e7\u00e3o muito dispendiosa confirma a <strong>dificuldade<\/strong> da rede em encontrar uma resposta face a esta pesada amea\u00e7a.<\/p>\n\n\n\n<p><strong>Por seu lado, Eli Ben-Sasson,<\/strong> cofundador da StarkWare, elogiou este avan\u00e7o, sublinhando que o Bitcoin \u00e9 tecnicamente &#8220;Quantum-Safe&#8221; a partir de hoje. Embora dispendioso, este seguro de vida on-chain prova, ainda assim, que o ecossistema pode reagir rapidamente sem alterar o seu c\u00f3digo fundamental.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"ira-o-bitcoin-encontrar-uma-solucao-duradoura\">Ir\u00e1 o Bitcoin encontrar uma solu\u00e7\u00e3o duradoura?<\/h2>\n\n\n\n<p>O surgimento do QSB prova que a comunidade cripto antecipa ativamente as amea\u00e7as futuras, refor\u00e7ando a narrativa de um ativo indestrut\u00edvel. Numa altura em que o mercado acompanha de perto a resist\u00eancia dos 73 000 $ para validar um novo rali rumo aos 78 000 $, a quest\u00e3o da seguran\u00e7a a longo prazo permanece central. Os investidores institucionais exigir\u00e3o garantias s\u00f3lidas antes de injetar capitais massivos.<\/p>\n\n\n\n<p>Se esta solu\u00e7\u00e3o de emerg\u00eancia a 200 $ tranquiliza a curto prazo, a verdadeira batalha travar-se-\u00e1 em torno da ado\u00e7\u00e3o do BIP-360. Conseguir\u00e1 a rede encontrar um consenso para uma atualiza\u00e7\u00e3o nativa antes que a amea\u00e7a qu\u00e2ntica se torne uma realidade tang\u00edvel? O futuro do rei das criptomoedas depender\u00e1 da sua capacidade de evoluir sem perder a sua ess\u00eancia.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\">Google is basically saying:<br><br>\u201cWe\u2019ve cut the quantum resources needed to break Bitcoin\u2019s encryption by 20x. We can now break it. We can prove it. We\u2019re just not going to tell you how.<br><br>We\u2019ve slowed down research to give crypto a chance. You have until 2029 to figure out a\u2026 <a href=\"https:\/\/t.co\/44yxcDQgsu\">https:\/\/t.co\/44yxcDQgsu<\/a><\/p>&mdash; Max the VC \ud83d\udc68\u200d\ud83d\ude80 (@mreiffy) <a href=\"https:\/\/twitter.com\/mreiffy\/status\/2038878566796988776?ref_src=twsrc%5Etfw\">March 31, 2026<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n\n<p>Em suma, este an\u00fancio \u00e9, acima de tudo, uma nova esperan\u00e7a para a comunidade de Bitcoiners. \u00c9 igualmente tranquilizador ver que os developers trabalham arduamente para encontrar uma solu\u00e7\u00e3o para proteger a rede Bitcoin. Isto acontece algumas semanas depois de a <strong>Google<\/strong> ter declarado que <strong>reduziu em 20 vezes a dificuldade <\/strong>para quebrar a seguran\u00e7a do Bitcoin gra\u00e7as ao computador qu\u00e2ntico.&nbsp;<\/p>\n\n\n\n<p><strong>Fontes: <\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.tradingview.com\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Max The VC<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.coindesk.com\/markets\/2026\/04\/10\/quantum-safe-bitcoin-now-possible-without-a-soft-fork-but-costs-usd200-a-pop\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">CoinDesk<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/x.com\/TheBitcoinConf\/status\/2042370378014630297\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Bull Theory<\/a><\/li>\n<\/ul>\n\n\n\n<p><strong>Artigos Relacionados:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/investx.fr\/pt\/noticias-cripto\/tao-queda-analise-covenant-ai\/\">Queda do TAO: An\u00e1lise da desvaloriza\u00e7\u00e3o e sa\u00edda da Covenant AI<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/investx.fr\/pt\/noticias-cripto\/top-altcoins-layer-1-bull-run\/\">Top 5 Altcoins Layer-1 para observar antes do Bull Run<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/investx.fr\/pt\/noticias-cripto\/acoes-crypto-2026-td-cowen\/\">3 a\u00e7\u00f5es Crypto que podem disparar em 2026, segundo a TD Cowen<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Descubra como proteger o Bitcoin de ataques qu\u00e2nticos sem &#8216;soft fork&#8217;. Uma solu\u00e7\u00e3o inovadora que pode salvar a criptomoeda. Saiba mais!<\/p>\n","protected":false},"author":32,"featured_media":119231,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_focuskw":"bitcoin qu\u00e2ntico","_yoast_wpseo_title":"Bitcoin amea\u00e7ado pela computa\u00e7\u00e3o qu\u00e2ntica?","_yoast_wpseo_metadesc":"Descubra como proteger o Bitcoin de ataques qu\u00e2nticos sem 'soft fork'. Uma solu\u00e7\u00e3o inovadora que pode salvar a criptomoeda. Saiba mais!","footnotes":"","faq_titre":"","questions_frequentes":"","custom_permalink":"noticias-cripto\/ameaca-quantica-bitcoin-solucao"},"categories":[42,6],"tags":[],"class_list":["post-119232","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bitcoin","category-noticias-cripto"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Bitcoin amea\u00e7ado pela computa\u00e7\u00e3o qu\u00e2ntica?<\/title>\n<meta name=\"description\" content=\"Descubra como proteger o Bitcoin de ataques qu\u00e2nticos sem &#039;soft fork&#039;. Uma solu\u00e7\u00e3o inovadora que pode salvar a criptomoeda. 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Je suis \u00e9galement form\u00e9 au trading et \u00e0 l\u2019analyse technique depuis plus d\u2019un an sur le march\u00e9 des cryptomonnaies, mais \u00e9galement sur le forex et les m\u00e9taux pr\u00e9cieux comme l\u2019or ou le silver. J\u2019ai obtenu un dipl\u00f4me de la Crypto Academy sur les fondamentaux techniques du Bitcoin et poss\u00e8de une exp\u00e9rience de plus de 5 ans dans le journalisme et l\u2019\u00e9criture d\u2019articles p\u00e9dagogiques. J\u2019ai notamment \u00e9crit de nombreuses masterclass pour \u00e9duquer les nouveaux venus dans l'industrie et plus de 10 000 articles et news.J\u2019ai \u00e9galement pu interviewer de nombreux fondateurs et cr\u00e9ateurs de projets dans la crypto comme Marc Lebreton (chef marketing de la blockchain SUI), EJ Ayala (Coinbase US et Draftkings), et d\u2019autres projets comme Polyhedra (Eric Vreeland), Usual (Adli Takkal Bataille), ou encore Humanity Protocol (Jade Gu). J\u2019ai plong\u00e9 dans la cryptomonnaie il y a plus de 3 ans et continue de mettre tout en \u0153uvre pour fournir du contenu de qualit\u00e9, avec de l\u2019expertise et la neutralit\u00e9 attendue d\u2019un journaliste. 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