{"id":92955,"date":"2020-09-01T19:42:04","date_gmt":"2020-09-01T17:42:04","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/identifikacziya-polzovatelej-po-istorii-poseshhenij-v-brauzere"},"modified":"2020-09-01T19:42:04","modified_gmt":"2020-09-01T17:42:04","slug":"identifikacziya-polzovatelej-po-istorii-poseshhenij-v-brauzere","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/identifikacziya-polzovatelej-po-istorii-poseshhenij-v-brauzere","title":{"rendered":"Identifik\u00e1cia pou\u017e\u00edvate\u013eov na z\u00e1klade hist\u00f3rie n\u00e1v\u0161tev v prehliada\u010di","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Zamestnanci spolo\u010dnosti Mozilla publikovali<\/a><\/noindex> v\u00fdsledky v\u00fdskumu mo\u017enej identifik\u00e1cie pou\u017e\u00edvate\u013eov na z\u00e1klade profilu n\u00e1v\u0161tevnosti v prehliada\u010di, ktor\u00fd m\u00f4\u017ee by\u0165 vidite\u013en\u00fd tret\u00edm stran\u00e1m a str\u00e1nkam. Anal\u00fdza 52 tis\u00edc profilov n\u00e1v\u0161tevnosti, ktor\u00e9 poskytli pou\u017e\u00edvatelia Firefoxu, ktor\u00ed sa z\u00fa\u010dastnili experimentu, uk\u00e1zala, \u017ee preferencie v n\u00e1v\u0161tevnosti str\u00e1nok s\u00fa charakteristick\u00e9 pre ka\u017ed\u00e9ho pou\u017e\u00edvate\u013ea a s\u00fa stabiln\u00e9. Unik\u00e1tnos\u0165 z\u00edskan\u00fdch profilov hist\u00f3rie n\u00e1v\u0161tev dosiahla 99 %. Vysok\u00e1 miera unik\u00e1tnosti profilov zost\u00e1va zachovan\u00e1 aj pri obmedzen\u00ed vzorky iba na stovku popul\u00e1rnych str\u00e1nok.<\/p>\n

\"Identifik\u00e1cia<\/a><\/noindex><\/center><\/p>\n

Over the course of a two-week experiment, the possibility of re-identification was tested \u2014 data on visits in the first week was attempted to be matched with data from the second week. It was found that it was possible to re-identify 50% of users who visited 50 or more different domains. When visiting 150 or more different domains, the re-identification coverage increased to 80%. The check was performed on a sample of 10,000 websites to simulate data that large content providers might obtain (for example, Google can track visits to 9,823 sites out of these 10,000, Facebook to 7,348, Verizon to 5,500).<\/p>\n

Uveden\u00e1 vlastnos\u0165 umo\u017e\u0148uje ve\u013ek\u00fdm vlastn\u00edkom popul\u00e1rnych zdrojov s dostato\u010dne vysokou pravdepodobnos\u0165ou identifikova\u0165 pou\u017e\u00edvate\u013eov. Napr\u00edklad spolo\u010dnosti Google, Facebook a Twitter, ktor\u00fdch widgety s\u00fa umiestnen\u00e9 na cudz\u00edch str\u00e1nkach, teoreticky m\u00f4\u017eu op\u00e4tovne identifikova\u0165 pribli\u017ene 80 % pou\u017e\u00edvate\u013eov.<\/p>\n

\"Identifik\u00e1cia<\/a><\/noindex><\/center><\/p>\n

Previously opened sites can also be determined through indirect methods, such as scanning popular domains in JavaScript code while evaluating the differences in loading delays of resources \u2014 if the site was recently opened by the user, the resource will be served from the browser cache almost instantly. Previously, CSS property states could have been used to determine opened pages. hodnotenie<\/a><\/noindex> cacheovania nastaven\u00ed HSTS (pri otvoren\u00ed str\u00e1nky s HSTS, HTTP-\u017eiados\u0165 sa okam\u017eite presmerovala na HTTPS bez pokusu o pr\u00edstup cez HTTP) a anal\u00fdza<\/a><\/noindex> the state of the CSS property 'visited.' <\/p>\n

Podobn\u00e9 met\u00f3dy ur\u010denia hist\u00f3rie n\u00e1v\u0161tev na z\u00e1klade CSS sa pou\u017e\u00edvali v podobnom v\u00fdskume, vykon\u00e1vanom<\/a><\/noindex> od roku 2009 do 2011. T\u00e1to \u0161t\u00fadia preuk\u00e1zala mo\u017enos\u0165 identifik\u00e1cie 42 % pou\u017e\u00edvate\u013eov pri kontrole 50 str\u00e1nok a 70 % pri kontrole 500 str\u00e1nok. \u0160t\u00fadia Mozilla potvrdila<\/a><\/noindex> a upresnila z\u00e1very predch\u00e1dzaj\u00facej publik\u00e1cie, pri\u010dom v\u00fdznamne zv\u00fd\u0161ila presnos\u0165 ur\u010denia hist\u00f3rie n\u00e1v\u0161tev, a pokrytie kontrolovan\u00fdch dom\u00e9n bolo zv\u00fd\u0161en\u00e9 z 6000 na 10000 (celkovo boli z\u00edskan\u00e9 \u00fadaje o 660000 dom\u00e9nach, ale pri hodnoten\u00ed identifik\u00e1cie bola pou\u017eit\u00e1 vzorka 10 tis\u00edc najpopul\u00e1rnej\u0161\u00edch dom\u00e9n). <\/p>\n

<\/a><\/noindex><\/p>\n

Zdroj: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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