{"id":90,"date":"2026-08-18T10:31:54","date_gmt":"2026-08-18T10:31:54","guid":{"rendered":"https:\/\/proskurnya.com\/es\/declaracion-de-aplicabilidad-soa\/"},"modified":"2026-08-18T10:31:54","modified_gmt":"2026-08-18T10:31:54","slug":"declaracion-de-aplicabilidad-soa","status":"publish","type":"post","link":"https:\/\/proskurnya.com\/es\/declaracion-de-aplicabilidad-soa\/","title":{"rendered":"Declaraci\u00f3n de Aplicabilidad (SoA): c\u00f3mo elaborar el documento central de la ISO 27001"},"content":{"rendered":"<p>La Statement of Applicability es uno de los primeros documentos que abro en cada auditor\u00eda ISO 27001. Y en ella se ve m\u00e1s r\u00e1pido si el sistema es genuino o se hizo \u00abpara el certificado\u00bb. As\u00ed se elabora una SoA con la que puede ir a la auditor\u00eda con la cabeza alta.<\/p>\n<h2>Qu\u00e9 es la SoA<\/h2>\n<p>La Declaraci\u00f3n de Aplicabilidad lista todos los controles del Anexo A (93 en la versi\u00f3n 2022) indicando: si el control aplica, por qu\u00e9, y c\u00f3mo est\u00e1 implementado. La SoA conecta la evaluaci\u00f3n de riesgos con los controles reales \u2014 el puente entre \u00abqu\u00e9 nos amenaza\u00bb y \u00abqu\u00e9 hacemos al respecto\u00bb.<\/p>\n<h2>Paso a paso<\/h2>\n<ol>\n<li><strong>Parta de los riesgos, no de la lista.<\/strong> Primero la <a href=\"https:\/\/proskurnya.com\/es\/evaluacion-de-riesgos-seguridad-informacion\/\">evaluaci\u00f3n de riesgos<\/a>, luego la elecci\u00f3n de controles, y solo despu\u00e9s el contraste con el Anexo A.<\/li>\n<li><strong>Por cada control: estado y referencia.<\/strong> Aplicable\/no aplicable, justificaci\u00f3n, referencia a la pol\u00edtica o proceso donde vive.<\/li>\n<li><strong>Exclusiones con argumentos.<\/strong> \u00abNo aplicamos los controles de desarrollo porque no desarrollamos software\u00bb \u2014 aceptable. \u00abNo aplicamos porque es dif\u00edcil\u00bb \u2014 no.<\/li>\n<\/ol>\n<h2>Errores t\u00edpicos en la SoA<\/h2>\n<ul>\n<li>Los 93 controles \u00abaplicables e implementados\u00bb en una startup de 15 personas \u2014 no existe, y el auditor lo comprobar\u00e1;<\/li>\n<li>la SoA sin actualizar durante a\u00f1os, aunque la empresa migr\u00f3 a la nube;<\/li>\n<li>estados que no corresponden a la realidad \u2014 el camino m\u00e1s corto a una no conformidad mayor;<\/li>\n<li>sin conexi\u00f3n con la evaluaci\u00f3n de riesgos \u2014 los controles \u00absimplemente est\u00e1n\u00bb.<\/li>\n<\/ul>\n<h2>Consejo de auditor<\/h2>\n<p>Lleve la SoA como registro vivo (tabla, Confluence) con due\u00f1o y fecha de revisi\u00f3n. Antes de la auditor\u00eda, contraste una muestra de 10 controles con la pr\u00e1ctica \u2014 una hora que le ahorra los hallazgos del art\u00edculo sobre <a href=\"https:\/\/proskurnya.com\/es\/no-conformidades-comunes-iso-27001\/\">no conformidades comunes<\/a>.<\/p>\n<h3>Lea tambi\u00e9n<\/h3>\n<ul>\n<li><a href=\"https:\/\/proskurnya.com\/es\/evaluacion-de-riesgos-seguridad-informacion\/\">Evaluaci\u00f3n de riesgos: metodolog\u00eda pr\u00e1ctica<\/a><\/li>\n<li><a href=\"https:\/\/proskurnya.com\/es\/documentacion-sgsi-minimo\/\">Documentaci\u00f3n del SGSI: el m\u00ednimo<\/a><\/li>\n<li><a href=\"https:\/\/proskurnya.com\/es\/fase-1-fase-2-auditoria-iso-27001\/\">Fase 1 y Fase 2 de la auditor\u00eda<\/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>Qu\u00e9 es la SoA, c\u00f3mo justificar exclusiones de controles y qu\u00e9 errores ven m\u00e1s los auditores. Aconseja Kyrylo Proskurnya.<\/p>\n","protected":false},"author":1,"featured_media":70,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-90","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>Declaraci\u00f3n de Aplicabilidad (SoA): c\u00f3mo elaborar el documento central de la ISO 27001 - 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\/declaracion-de-aplicabilidad-soa\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Declaraci\u00f3n de Aplicabilidad (SoA): c\u00f3mo elaborar el documento central de la ISO 27001 - Kyrylo Proskurnya \u2014 Auditor ISO\" \/>\n<meta property=\"og:description\" content=\"Qu\u00e9 es la SoA, c\u00f3mo justificar exclusiones de controles y qu\u00e9 errores ven m\u00e1s los auditores. 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