{"id":3673,"date":"2026-06-17T15:42:34","date_gmt":"2026-06-17T20:42:34","guid":{"rendered":"https:\/\/blog.nu.com\/sin-categoria\/what-encryption-is-and-how-it-protects-your-money\/"},"modified":"2026-06-19T14:40:06","modified_gmt":"2026-06-19T19:40:06","slug":"what-encryption-is-and-how-it-protects-your-money","status":"publish","type":"post","link":"https:\/\/blog.nu.com\/es\/finanzas\/seguridad\/what-encryption-is-and-how-it-protects-your-money\/","title":{"rendered":"Qu\u00e9 es la encriptaci\u00f3n y c\u00f3mo protege tu dinero"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Presionas \u00abenviar\u00bb en un <a target=\"_blank\" href=\"https:\/\/blog.nubank.com.br\/pix-tudo-sobre\/\" rel=\"noreferrer noopener\">pago<\/a>. En esa fracci\u00f3n de segundo, tu n\u00famero de cuenta, tu nombre y el monto viajan por internet. \u00bfQu\u00e9 impide que alguien intercepte esa informaci\u00f3n en el camino?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La encriptaci\u00f3n. Convierte tus datos legibles en un c\u00f3digo cifrado. Solo el destinatario correcto tiene la llave para descifrarlos. Piensa en <a target=\"_blank\" href=\"https:\/\/www.internetsociety.org\/issues\/encryption\/what-is\/\" rel=\"noreferrer noopener\">meter una carta dentro de una caja con candado<\/a>: cualquiera puede cargar la caja, pero solo quien tiene la llave correcta puede abrirla.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En esta gu\u00eda te explicamos cinco cosas que vale la pena saber: qu\u00e9 hace la encriptaci\u00f3n, c\u00f3mo funcionan sus principales tipos, d\u00f3nde ya la usas, por qu\u00e9 importa para tus finanzas y c\u00f3mo verificar que est\u00e1s protegido.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Qu\u00e9 hace la encriptaci\u00f3n en realidad<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La encriptaci\u00f3n convierte informaci\u00f3n legible \u2014 como una contrase\u00f1a o un n\u00famero de cuenta \u2014 en un c\u00f3digo ilegible. Sin la llave correcta, ese c\u00f3digo no significa nada.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cada vez que entras a tu app bancaria, env\u00edas un mensaje por WhatsApp o compras algo en l\u00ednea, tus datos viajan por redes. Esas redes pasan por servidores, routers y conexiones que t\u00fa no controlas. Sin encriptaci\u00f3n, cualquier persona con acceso a esos puntos podr\u00eda leer tu informaci\u00f3n tal cual.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Con encriptaci\u00f3n, los datos interceptados se ven como caracteres aleatorios. Sin llave, no hay acceso. Tu informaci\u00f3n sigue siendo tuya.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00f3mo funcionan los dos tipos principales<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Dos tipos principales de encriptaci\u00f3n protegen tus datos de formas distintas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>La encriptaci\u00f3n sim\u00e9trica<\/strong> usa una sola llave. La misma llave cifra y descifra los datos. Es r\u00e1pida, lo que la hace ideal para proteger archivos almacenados. El est\u00e1ndar m\u00e1s com\u00fan es <a target=\"_blank\" href=\"https:\/\/www.ibm.com\/think\/topics\/encryption\" rel=\"noreferrer noopener\">AES (Advanced Encryption Standard)<\/a>, utilizado por bancos y gobiernos en todo el mundo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>La encriptaci\u00f3n asim\u00e9trica<\/strong> usa dos llaves: una p\u00fablica y una privada. La llave p\u00fablica cifra los datos. Solo la llave privada correspondiente puede descifrarlos. Este m\u00e9todo funciona bien para comunicaciones, porque puedes compartir tu llave p\u00fablica abiertamente. RSA es el est\u00e1ndar asim\u00e9trico m\u00e1s utilizado.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La encriptaci\u00f3n de extremo a extremo combina ambos enfoques. Usa encriptaci\u00f3n asim\u00e9trica para intercambiar llaves de forma segura, y luego cambia a encriptaci\u00f3n sim\u00e9trica por velocidad durante la conversaci\u00f3n. As\u00ed es como apps como Signal mantienen tus mensajes privados de principio a fin.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">D\u00f3nde encuentras la encriptaci\u00f3n todos los d\u00edas<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Usas encriptaci\u00f3n m\u00e1s de lo que imaginas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tu app bancaria <a target=\"_blank\" href=\"https:\/\/blog.nubank.com.br\/seguranca-pix-camadas-de-protecao\/\" rel=\"noreferrer noopener\">encripta cada transacci\u00f3n<\/a>. Apps de mensajer\u00eda como WhatsApp, iMessage y Signal usan encriptaci\u00f3n de extremo a extremo por defecto \u2014 ni siquiera el proveedor de la app puede leer tus mensajes. El \u00edcono del candado junto a la direcci\u00f3n de un sitio web indica que la encriptaci\u00f3n HTTPS est\u00e1 activa. Tu celular encripta su propio almacenamiento, as\u00ed que un dispositivo robado no significa autom\u00e1ticamente datos robados. Incluso tu conexi\u00f3n Wi-Fi usa protocolos de encriptaci\u00f3n como WPA3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/transparencyreport.google.com\/https\" rel=\"noreferrer noopener\">M\u00e1s del 95% del tr\u00e1fico web ya est\u00e1 encriptado<\/a>. La infraestructura ya trabaja a tu alrededor. La pregunta es si est\u00e1s aprovech\u00e1ndola al m\u00e1ximo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Por qu\u00e9 la encriptaci\u00f3n importa para tus finanzas<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Los datos financieros son el objetivo de mayor valor para los atacantes. Credenciales bancarias, n\u00fameros de tarjetas de cr\u00e9dito e historiales de transacciones se venden en mercados ilegales por m\u00e1s que casi cualquier otro tipo de informaci\u00f3n personal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La encriptaci\u00f3n en la banca es una l\u00ednea de defensa cr\u00edtica. Aunque alguien intercepte tus datos durante una transacci\u00f3n, la versi\u00f3n encriptada es in\u00fatil sin la llave de descifrado. A las computadoras actuales les tomar\u00eda millones de a\u00f1os descifrarla por fuerza bruta.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Los bancos no encriptan solo por decisi\u00f3n propia. Las regulaciones lo exigen. Est\u00e1ndares como <a href=\"https:\/\/www.pcisecuritystandards.org\/\" target=\"_blank\" rel=\"noreferrer noopener\">PCI DSS<\/a> obligan a encriptar cualquier sistema que maneje pagos con tarjeta. Las leyes de privacidad en muchos pa\u00edses requieren que las empresas financieras protejan tus datos tanto en tr\u00e1nsito como en reposo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aun as\u00ed, la encriptaci\u00f3n solo funciona cuando realmente est\u00e1 activa. Y eso vale la pena verificarlo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Qu\u00e9 revisar para asegurarte de que est\u00e1s protegido<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Algunos h\u00e1bitos simples mantienen la encriptaci\u00f3n trabajando para ti.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Busca el candado.<\/strong> Antes de ingresar informaci\u00f3n personal en un sitio web, confirma que el \u00edcono del candado <a href=\"https:\/\/www.cloudflare.com\/learning\/ssl\/what-is-encryption\/\" target=\"_blank\" rel=\"noreferrer noopener\">HTTPS<\/a> aparezca en la barra de direcciones de tu navegador.<\/li>\n\n\n\n<li><strong>Mant\u00e9n tu celular actualizado.<\/strong> Las actualizaciones del sistema operativo frecuentemente corrigen vulnerabilidades de encriptaci\u00f3n. Inst\u00e1lalas pronto.<\/li>\n\n\n\n<li><strong>Usa tiendas de apps oficiales.<\/strong> Las apps descargadas fuera de tiendas oficiales pueden carecer de encriptaci\u00f3n adecuada o contener c\u00f3digo malicioso.<\/li>\n\n\n\n<li><strong>Activa la autenticaci\u00f3n en dos pasos (2FA).<\/strong> Esto a\u00f1ade un segundo paso de verificaci\u00f3n m\u00e1s all\u00e1 de tu contrase\u00f1a, haciendo que las credenciales robadas sean mucho menos \u00fatiles.<\/li>\n\n\n\n<li><strong>Revisa tus apps de mensajer\u00eda.<\/strong> Confirma que muestren \u00abcifrado de extremo a extremo\u00bb en la configuraci\u00f3n de conversaciones.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">La encriptaci\u00f3n trabaja silenciosamente detr\u00e1s de casi todo lo que haces en l\u00ednea. No necesitas entender cada algoritmo detr\u00e1s de ella. Solo necesitas saber que est\u00e1 ah\u00ed, verificar que est\u00e1 activa y dejarla hacer su trabajo. Tu dinero merece esa capa de protecci\u00f3n \u2014 y ahora sabes c\u00f3mo confirmar que est\u00e1 en su lugar.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Acceso Exclusivo<\/strong><\/h2>\n\n\n\n<p class=\"open-lead-form wp-block-paragraph\">Nu llega pronto a Estados Unidos y muchos otros pa\u00edses. Recibe novedades exclusivas y descubre cu\u00e1ndo podr\u00e1s registrarte en Nu&nbsp;<a href=\"https:\/\/www.nu.com\/2026-es\">aqu\u00ed<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Encryption protects your banking data, messages, and online payments. Learn how the two main types work and what to check to stay safe. <\/p>\n","protected":false},"author":16,"featured_media":3672,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[67,95],"tags":[],"class_list":["post-3673","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-finanzas","category-seguridad"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Qu\u00e9 es la encriptaci\u00f3n y c\u00f3mo protege tu dinero - blog.nu.com<\/title>\n<meta name=\"description\" content=\"La encriptaci\u00f3n convierte tus datos en c\u00f3digo ilegible para proteger tu dinero. 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