{"id":65,"date":"2023-07-12T12:34:27","date_gmt":"2023-07-12T12:34:27","guid":{"rendered":"https:\/\/wp.captcha.eu\/?p=65"},"modified":"2024-03-26T18:31:42","modified_gmt":"2024-03-26T18:31:42","slug":"an-introduction-to-captcha__en","status":"publish","type":"post","link":"https:\/\/new.captcha.eu\/es\/una-introduccion-a-captcha__en\/","title":{"rendered":"\u00bfQu\u00e9 es captcha y por qu\u00e9 lo necesitamos?"},"content":{"rendered":"<figure class=\"wp-block-image size-large\"><img data-dominant-color=\"e5dee0\" data-has-transparency=\"false\" style=\"--dominant-color: #e5dee0;\" fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"576\" sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"https:\/\/www.captcha.eu\/wp-content\/uploads\/2023\/07\/Blog-img-no1-1024x576.jpg\" alt=\"hombre y port\u00e1til captcha\" class=\"wp-image-69 not-transparent\" srcset=\"https:\/\/new.captcha.eu\/wp-content\/uploads\/2023\/07\/Blog-img-no1-1024x576.jpg 1024w, https:\/\/new.captcha.eu\/wp-content\/uploads\/2023\/07\/Blog-img-no1-300x169.jpg 300w, https:\/\/new.captcha.eu\/wp-content\/uploads\/2023\/07\/Blog-img-no1-768x432.jpg 768w, https:\/\/new.captcha.eu\/wp-content\/uploads\/2023\/07\/Blog-img-no1-1536x864.jpg 1536w, https:\/\/new.captcha.eu\/wp-content\/uploads\/2023\/07\/Blog-img-no1-18x10.jpg 18w, https:\/\/new.captcha.eu\/wp-content\/uploads\/2023\/07\/Blog-img-no1.jpg 1920w\" \/><\/figure>\n\n\n\n<h5 class=\"wp-block-heading\">En el mundo digital actual, donde los programas y algoritmos inform\u00e1ticos son cada vez m\u00e1s sofisticados, existe un problema que afecta tanto a los propietarios como a los usuarios de sitios web: el spam y el abuso. Para protegerse de mensajes de spam no deseados, cuentas falsas y otros tipos de abuso en l\u00ednea, muchos sitios web han introducido captchas. Pero \u00bfqu\u00e9 es exactamente un captcha y c\u00f3mo funciona?<\/h5>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u00bfQu\u00e9 es un captcha?<\/strong><\/h3>\n\n\n\n<p>Captcha significa &quot;Prueba de Turing p\u00fablica completamente automatizada para diferenciar las computadoras de los humanos&quot;. El t\u00e9rmino fue acu\u00f1ado por Luis von Ahn, Manuel Blum y John Langford en el a\u00f1o 2000 en la Universidad Carnegie Mellon. Es una tecnolog\u00eda que tiene como objetivo distinguir los programas inform\u00e1ticos de los usuarios humanos reales.<\/p>\n\n\n\n<p>Un captcha suele consistir en una imagen o grabaci\u00f3n de audio que contiene una serie de letras, n\u00fameros o s\u00edmbolos que luego el usuario debe ingresar para demostrar que es un usuario humano. Los captchas cl\u00e1sicos suelen estar dise\u00f1ados para que los humanos los lean f\u00e1cilmente, pero son dif\u00edciles de descifrar para los programas inform\u00e1ticos.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u00bfPor qu\u00e9 necesitamos captchas?<\/strong><\/h3>\n\n\n\n<p>El objetivo principal de los captchas es prevenir ataques automatizados. Los sitios web visitados por muchas personas son un objetivo popular para programas automatizados que se hacen pasar por usuarios humanos para difundir spam o realizar otros tipos de abuso. Al implementar captchas, los operadores de sitios web pueden garantizar que los usuarios que inician sesi\u00f3n, publican comentarios o realizan otras acciones sean en realidad usuarios humanos y no est\u00e9n controlados por programas.<\/p>\n\n\n\n<p>Otra raz\u00f3n para utilizar captchas es que pueden ayudar a aumentar la seguridad de las cuentas de usuario. Por ejemplo, si un usuario intenta iniciar sesi\u00f3n en una cuenta que no le pertenece, se puede utilizar un captcha para garantizar que el usuario sea en realidad una persona y no un programa automatizado que intenta piratear la cuenta.<\/p>\n\n\n\n<p>El uso de captchas tambi\u00e9n puede ayudar a mejorar el rendimiento del sitio web al reducir el tr\u00e1fico de programas automatizados. Los sitios web visitados por muchos programas automatizados pueden ralentizarse y posiblemente incluso bloquearse debido a la gran cantidad de solicitudes. Al implementar captchas, el propietario de un sitio web puede garantizar que solo usuarios humanos reales accedan al sitio web, mejorando as\u00ed el rendimiento.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Tipos de captchas<\/strong><\/h3>\n\n\n\n<p>El objetivo principal de los captchas es prevenir ataques automatizados. Los sitios web visitados por muchas personas son un objetivo popular para programas automatizados que se hacen pasar por usuarios humanos para difundir spam o realizar otros tipos de abuso. Al implementar captchas, los operadores de sitios web pueden garantizar que los usuarios que inician sesi\u00f3n, publican comentarios o realizan otras acciones sean en realidad usuarios humanos y no est\u00e9n controlados por programas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Captchas de texto<\/strong><\/h3>\n\n\n\n<p>Los captchas de texto requieren que el usuario descifre un texto distorsionado o alterado y lo escriba en un campo de entrada. El texto tambi\u00e9n puede complicarse con im\u00e1genes de fondo o colores para que sea m\u00e1s dif\u00edcil de descifrar para los programas de computadora.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Capturas de imagen<\/strong><\/h3>\n\n\n\n<p>Los captchas de im\u00e1genes requieren que el usuario identifique una imagen o seleccione una cierta cantidad de im\u00e1genes que contengan ciertas caracter\u00edsticas u objetos. Por ejemplo, se le puede pedir al usuario que seleccione todas las im\u00e1genes que contengan autom\u00f3viles o que seleccione todas las im\u00e1genes que contengan sem\u00e1foros.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Capturas de audio<\/strong><\/h3>\n\n\n\n<p>Con captchas de audio, el usuario escucha una grabaci\u00f3n de voz distorsionada o perturbada y luego debe escribir el texto que se dice en la grabaci\u00f3n. Esta es una opci\u00f3n accesible para usuarios con discapacidad visual o para usuarios que tienen dificultades para leer texto.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>captchas computacionales<\/strong><\/h3>\n\n\n\n<p>Los captchas de tareas de c\u00e1lculo requieren que el usuario resuelva una tarea matem\u00e1tica, como sumar dos n\u00fameros o resolver una ecuaci\u00f3n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Capturas de rompecabezas<\/strong><\/h3>\n\n\n\n<p>Los captchas de rompecabezas requieren que el usuario realice una acci\u00f3n espec\u00edfica, como unir partes de una imagen o mover objetos a la ubicaci\u00f3n correcta.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>captchas interactivos<\/strong><\/h3>\n\n\n\n<p>Los captchas interactivos requieren que el usuario realice una acci\u00f3n espec\u00edfica, como mover un objeto a una ubicaci\u00f3n espec\u00edfica o completar un formulario.<\/p>\n\n\n\n<p>Tambi\u00e9n existen formas de captcha h\u00edbridas que combinan elementos de diferentes tipos de captchas para aumentar la seguridad y mejorar la usabilidad.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Desaf\u00edos al usar captchas<\/strong><\/h3>\n\n\n\n<p>Aunque los captchas son una forma eficaz de prevenir el spam y el abuso en los sitios web, tambi\u00e9n pueden surgir algunos desaf\u00edos al utilizar captchas:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Accesibilidad<\/h4>\n\n\n\n<p>Los captchas pueden ser de dif\u00edcil acceso para personas con discapacidades, como discapacidades visuales o auditivas. Los captchas de texto pueden ser dif\u00edciles de leer debido a limitaciones visuales, mientras que los captchas de audio son inaccesibles para los usuarios sordos.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Experiencia de usuario<\/h4>\n\n\n\n<p>Algunos usuarios encuentran los captchas frustrantes y consumen mucho tiempo, especialmente si son dif\u00edciles de resolver o requieren m\u00faltiples intentos para corregirlos. Esto puede hacer que los usuarios abandonen sus actividades en el sitio web o cambien a otro sitio web.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Seguridad<\/h4>\n\n\n\n<p>Los captchas no son 100% seguros y pueden ser anulados por programas inform\u00e1ticos sofisticados, especialmente si no se actualizan o modifican peri\u00f3dicamente. Adem\u00e1s, algunos solucionadores de captchas humanos pueden omitir algunos captchas.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Multiling\u00fcismo<\/h4>\n\n\n\n<p>Los captchas pueden resultar dif\u00edciles de entender para los usuarios que no hablan ni leen el idioma utilizado en el sitio web. Esto puede provocar dificultades para resolver captchas y acceder a determinado contenido.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Abuso<\/h4>\n\n\n\n<p>Las personas que desean realizar actividades ilegales, como spam o phishing, tambi\u00e9n pueden abusar de los captchas. Estas personas pueden utilizar los servicios de resoluci\u00f3n de captcha humanos para evitar los captchas y continuar con sus actividades.<\/p>\n\n\n\n<p>En general, el uso de captchas requerir\u00eda una cuidadosa consideraci\u00f3n entre seguridad y usabilidad. Con nuestra soluci\u00f3n captcha podr\u00e1s garantizar seguridad y experiencia de usuario a partes iguales. Puedes aprender c\u00f3mo funciona aqu\u00ed: <a rel=\"noreferrer noopener\" href=\"https:\/\/www.captcha.eu\" data-type=\"URL\" data-id=\"https:\/\/www.captcha.eu\" target=\"_blank\">captcha.eu<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Captcha protege preventivamente contra el acceso no autorizado utilizando las \u00faltimas tecnolog\u00edas de seguridad.<\/p>","protected":false},"author":1,"featured_media":69,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","footnotes":""},"categories":[19,11,13,37],"tags":[],"class_list":["post-65","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-new-blog","category-blog","category-english","category-info"],"acf":{"pretitle":"An introduction to Captcha ","intern_slug":"en"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.3 (Yoast SEO v24.5) - 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