Privacy Preserving Web-Based Email

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Provided by: Pennsylvania State Employees Credit Union
Topic: Security
Format: PDF
Recent web-based applications offer users free service in exchange for access to personal communication, such as on-line email services and instant messaging. The inspection and retention of user communication is generally intended to enable targeted marketing. However, unless specifically stated otherwise by the collecting service's privacy policy, such records have an indefinite lifetime and may be later used or sold without restriction. In this paper, the authors show that it is possible to protect a user's privacy from these risks by exploiting mutually oblivious, competing communication channels.
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