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Unlike existing anonymity schemes, we consider all parties that can intercept communications between a mobile user and a server as potential privacy threats. We formally quantify the privacy exposure and the protection of our system in the presence of malicious neighboring peers, global WiFi eavesdroppers, and omniscient mobile network operators, which possibly collude to breach user\u2019s anonymity or disrupt the communication. We also describe how a micropayment scheme that suits our mobile scenario can provide incentives for peers to collaborate in the protocol. Finally, we evaluate the network overhead and attack resiliency of our protocol using a prototype implementation deployed in Emulab and Orbit, and our probabilistic model.<\/jats:p>","DOI":"10.1145\/2461321.2461322","type":"journal-article","created":{"date-parts":[[2013,5,28]],"date-time":"2013-05-28T16:35:32Z","timestamp":1369758932000},"page":"1-33","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":16,"title":["Providing Users\u2019 Anonymity in Mobile Hybrid Networks"],"prefix":"10.1145","volume":"12","author":[{"given":"Claudio A.","family":"Ardagna","sequence":"first","affiliation":[{"name":"Universit\u00e0 degli Studi di Milano"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sushil","family":"Jajodia","sequence":"additional","affiliation":[{"name":"George Mason University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pierangela","family":"Samarati","sequence":"additional","affiliation":[{"name":"Universit\u00e0 degli Studi di Milano"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Angelos","family":"Stavrou","sequence":"additional","affiliation":[{"name":"George Mason University"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"320","published-online":{"date-parts":[[2013,5]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11416-007-0072-y"},{"key":"e_1_2_1_2_1","unstructured":"Allan A. and Warden P. 2011. 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