Exploiting Proximity-Based Mobile Apps for Large-Scale Location Privacy Probing

Algorithm 1

Search and read people nearby in Wechat.

    Press HOME button to return to home screen

    Find the icon with text “Wechat”, click it and wait for new window

    Find the tab with text “Discover”, click it and wait for new window

    Find the button with text “People Nearby”, click it and wait for new window

    if Text “Unable to load your location data” is found  then

     Return error

    end if

    Get the listview with resource id “com.tencent.mm:id/atf”

    Read the properties of each listitem in to

  if   is scrollable  then

   Scroll down for next page

   Goto

  else

    Return

  end if