{"id":100538,"date":"2026-02-28T00:23:28","date_gmt":"2026-02-27T23:23:28","guid":{"rendered":"https:\/\/www.infokuryr.cz\/n\/?p=100538"},"modified":"2026-02-27T15:36:44","modified_gmt":"2026-02-27T14:36:44","slug":"iluze-anonymity-se-rozplynula-umela-inteligence-dokaze-systematicky-odhalovat-anonymni-internetove-profily","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2026\/02\/28\/iluze-anonymity-se-rozplynula-umela-inteligence-dokaze-systematicky-odhalovat-anonymni-internetove-profily\/","title":{"rendered":"Iluze anonymity se rozplynula: Um\u011bl\u00e1 inteligence dok\u00e1\u017ee systematicky odhalovat anonymn\u00ed internetov\u00e9 profily"},"content":{"rendered":"<div id=\"fb-root\"><\/div>\n<p><span dir=\"auto\">Ne FBI.<\/span><br \/>\n<span dir=\"auto\">Ne vl\u00e1dn\u00ed zpravodajsk\u00e1 agentura.<\/span><br \/>\n<span dir=\"auto\">Ale komer\u010dn\u011b dostupn\u00e1 um\u011bl\u00e1 inteligence.<\/span><\/p>\n<p><span dir=\"auto\">V\u00fdzkumn\u00edci z ETH Zurich a spole\u010dnosti Anthropic ve sv\u00e9 studii \u201eRozs\u00e1hl\u00e1 online deanonymizace s LLM\u201c uk\u00e1zali to, co mnoz\u00ed tu\u0161ili \u2013 ale nikdo to nedok\u00e1zal s takovou jasnost\u00ed dok\u00e1zat:<\/span><\/p>\n<p><span dir=\"auto\">Rozs\u00e1hl\u00e9 jazykov\u00e9 modely dok\u00e1\u017e\u00ed systematicky odhalovat anonymn\u00ed internetov\u00e9 identity. Automatizovan\u00e9. \u0160k\u00e1lovateln\u00e9. A s vysokou p\u0159esnost\u00ed.<\/span><\/p>\n<p><span dir=\"auto\">Proces vyhled\u00e1v\u00e1n\u00ed funguje v n\u011bkolika kroc\u00edch.<\/span><br \/>\n<span dir=\"auto\">LLM extrahuj\u00ed sign\u00e1ly identity ze zd\u00e1nliv\u011b ne\u0161kodn\u00fdch p\u0159\u00edsp\u011bvk\u016f \u2013 biografick\u00fdch fragment\u016f, vzorc\u016f z\u00e1jm\u016f, jazykov\u00fdch charakteristik.<\/span><br \/>\n<span dir=\"auto\">Profily kandid\u00e1t\u016f jsou pot\u00e9 prohled\u00e1v\u00e1ny pomoc\u00ed s\u00e9mantick\u00fdch vno\u0159en\u00ed.<\/span><br \/>\n<span dir=\"auto\">Nakonec modely jako GPT vyhodnocuj\u00ed nejpravd\u011bpodobn\u011bj\u0161\u00ed shody a kalibruj\u00ed spolehlivost, aby minimalizovaly chybn\u00e9 identifikace.<\/span><\/p>\n<p><span dir=\"auto\">\u017d\u00e1dn\u00fd vy\u0161et\u0159ovatel.<\/span><br \/>\n<span dir=\"auto\">\u017d\u00e1dn\u00e9 m\u011bs\u00edce dolov\u00e1n\u00ed dat.<\/span><br \/>\n<span dir=\"auto\">\u017d\u00e1dn\u00fd exkluzivn\u00ed p\u0159\u00edstup zpravodajsk\u00fdch slu\u017eeb.<\/span><\/p>\n<p><span dir=\"auto\">Pouze v\u00fdpo\u010detn\u00ed v\u00fdkon.<\/span><\/p>\n<p><span dir=\"auto\">\u010c\u00edsla jsou alarmuj\u00edc\u00ed.<\/span><\/p>\n<div class=\"twitter-tweet twitter-tweet-rendered\"><iframe id=\"twitter-widget-0\" class=\"\" title=\"X Post\" src=\"https:\/\/platform.twitter.com\/embed\/Tweet.html?dnt=false&amp;embedId=twitter-widget-0&amp;features=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%3D%3D&amp;frame=false&amp;hideCard=false&amp;hideThread=false&amp;id=2026951395753213970&amp;lang=cs&amp;origin=https%3A%2F%2Funcutnews.ch%2Fdie-illusion-der-anonymitaet-ist-gefallen-studie-enthuellt-ki-kann-anonyme-internetprofile-systematisch-enttarnen%2F&amp;sessionId=e715f1964403e0779f2892e062855e53603818fa&amp;theme=light&amp;widgetsVersion=2615f7e52b7e0%3A1702314776716&amp;width=550px\" frameborder=\"0\" scrolling=\"no\" allowfullscreen=\"allowfullscreen\" data-tweet-id=\"2026951395753213970\" data-mce-fragment=\"1\"><\/iframe><\/div>\n<p><span dir=\"auto\">V multiplatformn\u00edm sc\u00e9n\u00e1\u0159i syst\u00e9m dos\u00e1hl m\u00edry \u00fasp\u011b\u0161nosti a\u017e 67 % s 90% p\u0159esnost\u00ed.<\/span><br \/>\n<span dir=\"auto\">I p\u0159i extr\u00e9mn\u011b vysok\u00e9 \u00farovni spolehlivosti \u2013 99% p\u0159esnosti \u2013 st\u00e1le p\u0159etrv\u00e1valy v\u00fdznamn\u00e9 shody.<\/span><\/p>\n<p><span dir=\"auto\">\u010casov\u00fd odstup nechr\u00e1n\u00ed:<\/span><br \/>\n<span dir=\"auto\">Rok mezi star\u00fdmi a nov\u00fdmi p\u0159\u00edsp\u011bvky na Redditu nesta\u010dil k spolehliv\u00e9mu utajen\u00ed identity.<\/span><\/p>\n<p><span dir=\"auto\">Obzvl\u00e1\u0161t\u011b znepokojiv\u00e9 je, \u017ee<\/span><br \/>\n<span dir=\"auto\">klasick\u00e9 metody deanonymizace \u2013 nap\u0159\u00edklad ty pou\u017e\u00edvan\u00e9 v \u00e9\u0159e ceny Netflix \u2013 t\u00e9m\u011b\u0159 \u00fapln\u011b selhaly.<\/span><br \/>\n<span dir=\"auto\">LLM tyto techniky nejen vylep\u0161ily, ale dokonce<\/span><br \/>\n<span dir=\"auto\">je u\u010dinily zastaral\u00fdmi.<\/span><\/p>\n<p><span dir=\"auto\">V\u00fdzkumn\u00edci otev\u0159en\u011b prohla\u0161uj\u00ed, co to znamen\u00e1:<\/span><\/p>\n<p><em><span dir=\"auto\">Ka\u017ed\u00fd, kdo zve\u0159ej\u0148uje p\u0159\u00edsp\u011bvky pod opakuj\u00edc\u00edmi se u\u017eivatelsk\u00fdmi jm\u00e9ny, by m\u011bl p\u0159edpokl\u00e1dat, \u017ee jeho \u00fa\u010dty lze propojit se skute\u010dn\u00fdmi identitami.<\/span><\/em><\/p>\n<p><span dir=\"auto\">Toto u\u017e nen\u00ed teoretick\u00e9 riziko.<\/span><br \/>\n<span dir=\"auto\">Je to \u0161k\u00e1lovateln\u00fd sc\u00e9n\u00e1\u0159 \u00fatoku.<\/span><\/p>\n<p><span dir=\"auto\">A je to \u010d\u00edm d\u00e1l siln\u011bj\u0161\u00ed.<\/span><\/p>\n<p><span dir=\"auto\">Vy\u0161\u0161\u00ed v\u00fdpo\u010detn\u00ed v\u00fdkon zvy\u0161uje m\u00edru \u00fasp\u011b\u0161nosti.<\/span><br \/>\n<span dir=\"auto\">Lep\u0161\u00ed modely zlep\u0161uj\u00ed kvalitu p\u0159ipojen\u00ed.<\/span><br \/>\n<span dir=\"auto\">Ka\u017ed\u00e9 vylep\u0161en\u00ed um\u011bl\u00e9 inteligence posouv\u00e1 rovnov\u00e1hu d\u00e1le proti soukrom\u00ed.<\/span><\/p>\n<p><span dir=\"auto\">Obzvl\u00e1\u0161t\u011b z\u00e1ke\u0159n\u00e9 je,<\/span><br \/>\n<span dir=\"auto\">\u017ee se \u00fatok rozd\u011bluje na zd\u00e1nliv\u011b ne\u0161kodn\u00e9 d\u00edl\u010d\u00ed operace \u2013 anal\u00fdzu profilu, vyhled\u00e1v\u00e1n\u00ed vkl\u00e1d\u00e1n\u00ed, hodnocen\u00ed kandid\u00e1t\u016f. \u017d\u00e1dn\u00e9 jednotliv\u00e9 vol\u00e1n\u00ed API nenese ozna\u010den\u00ed \u201edeanonymizace\u201c. Klasick\u00e9 ochrann\u00e9 mechanismy, jako je omezen\u00ed rychlosti, jsou zde do zna\u010dn\u00e9 m\u00edry ne\u00fa\u010dinn\u00e9.<\/span><\/p>\n<p><span dir=\"auto\">To, co bylo dlouho pova\u017eov\u00e1no za \u201epraktickou anonymitu\u201c \u2013 tj. ochranu skrze \u00fasil\u00ed \u2013 ji\u017e neexistuje.<\/span><\/p>\n<p><span dir=\"auto\">Studie p\u0159edstavuje zlomov\u00fd bod.<\/span><\/p>\n<p><span dir=\"auto\">Internet nikdy nebyl skute\u010dn\u011b anonymn\u00ed.<\/span><br \/>\n<span dir=\"auto\">Ale byl dostate\u010dn\u011b drah\u00fd na to, aby lidi nechal na pokoji.<\/span><\/p>\n<p><span dir=\"auto\">Tato cenov\u00e1 bari\u00e9ra klesla.<\/span><\/p>\n<p><span dir=\"auto\">A s t\u00edm kon\u010d\u00ed jedna \u00e9ra.<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-1185\" src=\"http:\/\/www.infokuryr.cz\/n\/wp-content\/uploads\/2021\/04\/kuryr-podpis.png\" alt=\"\" width=\"84\" height=\"24\" \/><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ne FBI. Ne vl\u00e1dn\u00ed zpravodajsk\u00e1 agentura. Ale komer\u010dn\u011b dostupn\u00e1 um\u011bl\u00e1 inteligence. V\u00fdzkumn\u00edci z ETH Zurich&#8230;<\/p>\n","protected":false},"author":2,"featured_media":83034,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[9959,839,2194],"_links":{"self":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/100538"}],"collection":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/comments?post=100538"}],"version-history":[{"count":0,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/100538\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media\/83034"}],"wp:attachment":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media?parent=100538"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/categories?post=100538"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/tags?post=100538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}