{"id":1015,"date":"2025-11-15T00:00:00","date_gmt":"2025-11-15T00:00:00","guid":{"rendered":"https:\/\/projectes.xtec.cat\/ia\/?page_id=1015"},"modified":"2026-02-22T18:53:03","modified_gmt":"2026-02-22T17:53:03","slug":"1b32-coneix-aspectes-de-seguretat-especifics-de-la-ia","status":"publish","type":"page","link":"https:\/\/projectes.xtec.cat\/ia\/competencia-digital-docent-intelligencia-artificial\/d1-comprensio-us-segur-ia\/etapa-intermedia\/1-b-3-adopcio-de-lus-segur-de-la-ia-en-el-context-educatiu\/1b32-coneix-aspectes-de-seguretat-especifics-de-la-ia\/","title":{"rendered":"1.B.3.2. Coneix aspectes de seguretat espec\u00edfics de la IA, com els m\u00e8todes d&#8217;injecci\u00f3 d\u2019indicacions ( prompt injection ) o d&#8217;atac advers (adversarial attacks) i estrat\u00e8gies de mitigaci\u00f3."},"content":{"rendered":"\n<div class=\"wp-block-getwid-toggle has-icon-left\">\n<div class=\"wp-block-getwid-toggle__row\"><div class=\"wp-block-getwid-toggle__header-wrapper\"><h3 class=\"wp-block-getwid-toggle__header\"><a href=\"#\"><span class=\"wp-block-getwid-toggle__header-title\">Un petit n\u00famero de dades malici\u00f3s pot contaminar un model de llenguatge gran<\/span><span class=\"wp-block-getwid-toggle__icon is-active\"><i class=\"fas fa-plus\"><\/i><\/span><span class=\"wp-block-getwid-toggle__icon is-passive\"><i class=\"fas fa-minus\"><\/i><\/span><\/a><\/h3><\/div><div class=\"wp-block-getwid-toggle__content-wrapper\"><div class=\"wp-block-getwid-toggle__content\">\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Anthropic. (2025, 9 de octubre). <em>A small number of samples can poison LLMs of any size<\/em>. <a href=\"https:\/\/www.anthropic.com\/research\/small-samples-poison?utm_source=chatgpt.com\">https:\/\/www.anthropic.com\/research\/small-samples-poison<\/a><\/p>\n<\/blockquote>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Aquest estudi d&#8217;<strong>Anthropic<\/strong>, l&#8217;<strong>Institut Alan Turing<\/strong> i l&#8217;<strong>UK AISI<\/strong> revela que \u00e9s possible manipular models de llenguatge amb una quantitat m\u00ednima de dades corruptes. La recerca demostra que nom\u00e9s <strong>250 documents maliciosos<\/strong> poden crear una &#8220;porta del darrere&#8221; que s&#8217;activa amb frases espec\u00edfiques, independentment de la mida del model. Aquesta troballa \u00e9s crucial perqu\u00e8 desmenteix la idea que els atacants necessiten controlar un gran percentatge del contingut d&#8217;entrenament. L&#8217;experiment va utilitzar el desencadenant per for\u00e7ar els sistemes a generar text sense sentit, provant que la vulnerabilitat \u00e9s constant des de models petits fins a gegants de <strong>13 bilions de par\u00e0metres<\/strong>. En definitiva, els resultats alerten que l&#8217;<strong>enverinament de dades<\/strong> \u00e9s un risc molt m\u00e9s accessible i pr\u00e0ctic del que es pensava anteriorment. Els autors subratllen la necessitat urgent de desenvolupar <strong>noves defenses<\/strong> davant d&#8217;aquesta amena\u00e7a que no dep\u00e8n de l&#8217;escala de la intel\u00b7lig\u00e8ncia artificial.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<iframe loading=\"lazy\" src=\"https:\/\/drive.google.com\/file\/d\/1QEEEZQxig0g8LPTWWwUkuiFbUh_BnpfR\/preview\" width=\"640\" height=\"380\"><\/iframe>\n<\/div>\n<\/div>\n<\/div><\/div><\/div>\n<\/div>\n\n\n\n<div style=\"height:51px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":11971,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-1015","page","type-page","status-publish","hentry"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/projectes.xtec.cat\/ia\/wp-json\/wp\/v2\/pages\/1015","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/projectes.xtec.cat\/ia\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/projectes.xtec.cat\/ia\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/projectes.xtec.cat\/ia\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/projectes.xtec.cat\/ia\/wp-json\/wp\/v2\/comments?post=1015"}],"version-history":[{"count":6,"href":"https:\/\/projectes.xtec.cat\/ia\/wp-json\/wp\/v2\/pages\/1015\/revisions"}],"predecessor-version":[{"id":12977,"href":"https:\/\/projectes.xtec.cat\/ia\/wp-json\/wp\/v2\/pages\/1015\/revisions\/12977"}],"up":[{"embeddable":true,"href":"https:\/\/projectes.xtec.cat\/ia\/wp-json\/wp\/v2\/pages\/11971"}],"wp:attachment":[{"href":"https:\/\/projectes.xtec.cat\/ia\/wp-json\/wp\/v2\/media?parent=1015"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}