{"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\/sl\/blog\/news\/identifikacziya-polzovatelej-po-istorii-poseshhenij-v-brauzere","title":{"rendered":"Identifikacija uporabnikov na podlagi zgodovine obiskov v brskalniku","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Zaposleni u kompaniji Mozilla sta objavili<\/a><\/noindex> rezultati istra\u017eivanja mogu\u0107nosti identifikacije korisnika na osnovu profila poseta u pretra\u017eiva\u010du, koji mo\u017ee biti vidljiv tre\u0107im stranama i sajtovima. Analiza 52 hiljade profila poseta, koje su pru\u017eili korisnici Firefoxa koji su u\u010destvovali u eksperimentu, pokazala je da su preferencije u posetama sajtovima karakteristi\u010dne za svakog korisnika i stalne. Jedinstvenost dobijenih profila istorije poseta iznosila je 99%. Pri tom, visoka stepen jedinstvenosti profila se odr\u017eava \u010dak i kada se uzorkuje samo stotinu popularnih sajtova.<\/p>\n

\"Identifikacija<\/a><\/noindex><\/center><\/p>\n

Preverjanje mo\u017enosti ponovne identifikacije je potekalo v okviru dvotedenskega eksperimenta \u2014 podatke o obiskih v prvem tednu smo posku\u0161ali primerjati s podatki v drugem tednu. Ugotovljeno je bilo, da je mogo\u010de ponovno identificirati 50 % uporabnikov, ki so obiskali 50 ali ve\u010d razli\u010dnih domen. Pri obisku 150 ali ve\u010d razli\u010dnih domen se je obseg ponovne identifikacije pove\u010dal na 80 %. Preverjanje je bilo izvedeno na vzorcu 10.000 spletnih strani za simulacijo podatkov, ki jih lahko pridobijo veliki ponudniki vsebin (na primer, Google lahko spremlja dostop do 9823 spletnih strani iz teh 10.000, Facebook do 7348, Verizon do 5500).<\/p>\n

Ova osobina omogu\u0107ava velikim vlasnicima popularnih resursa sa visokom verovatno\u0107om da identifikuju korisnike. Na primer, kompanije Google, Facebook i Twitter, \u010diji su vid\u017eeti postavljeni na spoljnim sajtovima, teoretski mogu ponovo identifikovati pribli\u017eno 80% korisnika.<\/p>\n

\"Identifikacija<\/a><\/noindex><\/center><\/p>\n

Dolo\u010ditev prej odprtih spletnih strani je mogo\u010de izvesti tudi s posrednimi metodami, kot je preverjanje v kodi JavaScript priljubljenih domen in ocenjevanje razlike v zamudah pri nalaganju virov \u2014 \u010de je bila spletna stran pred kratkim odprta s strani uporabnika, bo vir skoraj takoj dostavljen iz predpomnilnika brskalnika. Prej so se za dolo\u010danje odprtih strani lahko uporabili evaluacija<\/a><\/noindex> ke\u0161iranje HSTS postavki (prilikom otvaranja sajta sa HSTS, HTTP zahtev se odmah preusmerava na HTTPS bez poku\u0161aja pristupa putem HTTP) i analiza<\/a><\/noindex> stanja CSS lastnosti \u00abvisited\u00bb. <\/p>\n

Sli\u010dne metode odre\u0111ivanja istorije poseta na osnovu CSS su kori\u0161\u0107ene u sli\u010dnom istra\u017eivanju, sprovodenom<\/a><\/noindex> od 2009 do 2011. Leta. To raziskovanje je pokazalo mo\u017enost identifikacije 42 % uporabnikov pri preverjanju 50 strani in 70 % pri preverjanju 500 strani. Raziskava Mozilla je potrdila<\/a><\/noindex> in natan\u010dneje opredelila ugotovitve prej\u0161nje publikacije, pri \u010demer je bila natan\u010dnost dolo\u010danja zgodovine obiskov bistveno pove\u010dana, razpon preverjanih domen pa je bil raz\u0161irjen s 6000 na 10000 (skupaj so bili pridobljeni podatki o 660000 domenah, vendar je bila pri oceni identifikacije uporabljena vzor\u010dno skupino 10 tiso\u010d najbolj priljubljenih domen). <\/p>\n

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

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

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