Rüdian, SylvioPinkwart, NielsLiu, ZhiCzarnecki, ChristianBrockmann, CarstenSultanow, EldarKoschmider, AgnesSelzer, Annika2018-10-102018-10-102018978-3-88579-679-4https://dl.gi.de/handle/20.500.12116/17210This paper presents a method to deanonymize people using fanpages’ Likes of Facebook users. The strategy shows that information of Likes can be easily crawled from Facebook. Combined with an interactive version of browser-history-stealing it can be used to get identities of users on a website. The attack is possible because of the existence of Facebook’ Likes that can be used as a fingerprint. The claim was tested and discussed with real-world collected data. With the assumption of at least 4 collected Likes per user, 99.91% of them can be deanonymized through the fingerprint of Likes. Apart from that we provide potential solutions for protection of identities in social media.ensocial mediadeanonymizationbrowser-history-stealingfake-captchaFacebookLikesfingerprintprivacyattackText/Conference Paper1617-5468