Mechanism of User Profile Complete Deletion Concerning Temporary Scenario Oriented Application of Mobile SNS

In order to ensure the privacy of user profile from disclosure when the users quit using the mobile social network service (MSNS) at temporary scenarios, the paper proposes the privacy insurance module (PIM) based on distributed mobile social network service (DMSNS), which supports triggering the user profile complete deletion on several conditions. One of the conditions the paper proposes is the customized time setting for user profile deletion and the paper also designs the mechanism and algorithms for proper complete deletion by classification, which enriches the user experience and meanwhile protects user profile from being misused and disclosed.