{"id":109,"date":"2026-08-18T10:36:50","date_gmt":"2026-08-18T10:36:50","guid":{"rendered":"https:\/\/proskurnya.com\/es\/proteccion-contra-phishing\/"},"modified":"2026-08-18T10:36:50","modified_gmt":"2026-08-18T10:36:50","slug":"proteccion-contra-phishing","status":"publish","type":"post","link":"https:\/\/proskurnya.com\/es\/proteccion-contra-phishing\/","title":{"rendered":"Phishing: c\u00f3mo proteger a la empresa del ataque n.\u00ba 1"},"content":{"rendered":"<p>La inmensa mayor\u00eda de las intrusiones que he analizado con clientes no empez\u00f3 con un exploit sofisticado, sino con un correo. El phishing es el ataque n.\u00ba 1, y la defensa no es una herramienta \u2014 son tres niveles funcionando juntos.<\/p>\n<h2>Nivel 1. T\u00e9cnico<\/h2>\n<ul>\n<li><strong>SPF, DKIM, DMARC<\/strong> en su dominio \u2014 para que no env\u00eden correos en su nombre (y revise la pol\u00edtica DMARC: p=none no bloquea nada);<\/li>\n<li><strong>filtrado de correo<\/strong> con sandbox para adjuntos;<\/li>\n<li><strong>MFA en todas partes<\/strong> \u2014 una contrase\u00f1a robada sin segundo factor vale poco;<\/li>\n<li><strong>gestores de contrase\u00f1as:<\/strong> no rellenan la contrase\u00f1a en un dominio falso \u2014 protecci\u00f3n discreta pero potente.<\/li>\n<\/ul>\n<h2>Nivel 2. Humano<\/h2>\n<p>Entrenamientos cortos y regulares y simulaciones de phishing con an\u00e1lisis de los errores \u2014 sin castigos, o la gente esconder\u00e1 los clics. C\u00f3mo montar formaci\u00f3n que funcione \u2014 en el <a href=\"https:\/\/proskurnya.com\/es\/formacion-seguridad-empleados\/\">art\u00edculo dedicado<\/a>. La habilidad clave no es \u00abreconocer todos los phishings\u00bb (imposible), sino <strong>reportar r\u00e1pido<\/strong> tras el clic.<\/p>\n<h2>Nivel 3. Proceso<\/h2>\n<p>Un bot\u00f3n \u00abreportar correo sospechoso\u00bb, alguien de guardia que reacciona, un playbook: aislar, restablecer la contrase\u00f1a, revisar registros, comunicar. Un clic con reacci\u00f3n r\u00e1pida es un evento; el mismo clic callado tres d\u00edas, un incidente con consecuencias. El proceso est\u00e1 en el art\u00edculo de <a href=\"https:\/\/proskurnya.com\/es\/gestion-de-incidentes-seguridad\/\">gesti\u00f3n de incidentes<\/a>.<\/p>\n<h2>La m\u00e9trica de madurez<\/h2>\n<p>No \u00abcero clics\u00bb (inalcanzable), sino la relaci\u00f3n entre reportes y clics en las simulaciones: cuando reporta m\u00e1s gente de la que hace clic, la cultura funciona.<\/p>\n<h3>Lea tambi\u00e9n<\/h3>\n<ul>\n<li><a href=\"https:\/\/proskurnya.com\/es\/formacion-seguridad-empleados\/\">Formaci\u00f3n de seguridad para empleados<\/a><\/li>\n<li><a href=\"https:\/\/proskurnya.com\/es\/gestion-de-incidentes-seguridad\/\">Gesti\u00f3n de incidentes de seguridad<\/a><\/li>\n<li><a href=\"https:\/\/proskurnya.com\/es\/metricas-de-seguridad-informacion\/\">M\u00e9tricas de seguridad de la informaci\u00f3n<\/a><\/li>\n<\/ul>\n<hr \/>\n<p><em>Autor \u2014 <strong>Kyrylo Proskurnya<\/strong>, Auditor Jefe ISO y experto internacional en sistemas de gesti\u00f3n. Realizo auditor\u00edas de certificaci\u00f3n y auditor\u00edas internas ISO 27001, ISO 9001, ISO 27701 e ISO 42001 para empresas de Espa\u00f1a, Europa y EE. UU. <a href=\"https:\/\/proskurnya.com\/es\/\">Sobre m\u00ed<\/a> \u00b7 <a href=\"https:\/\/proskurnya.com\/es\/#contacts\">Solicitar una consulta<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Medidas t\u00e9cnicas, formaci\u00f3n y proceso de respuesta \u2014 la defensa en tres niveles contra el phishing seg\u00fan ISO 27001. Recomendaciones de Kyrylo Proskurnya.<\/p>\n","protected":false},"author":1,"featured_media":69,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-109","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-iso-certificacion"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Phishing: c\u00f3mo proteger a la empresa del ataque n.\u00ba 1 - Kyrylo Proskurnya \u2014 Auditor ISO<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/proskurnya.com\/es\/proteccion-contra-phishing\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Phishing: c\u00f3mo proteger a la empresa del ataque n.\u00ba 1 - Kyrylo Proskurnya \u2014 Auditor ISO\" \/>\n<meta property=\"og:description\" content=\"Medidas t\u00e9cnicas, formaci\u00f3n y proceso de respuesta \u2014 la defensa en tres niveles contra el phishing seg\u00fan ISO 27001. 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