problem: The conversations are no more private as anyone who picks up my phone can view that.

what it should do: 1. it should hide conversations. 2. it should make conversations inaccessable.

what should fix the problem: 1. program that can password-protect the conversations. 2. any widget or command line in the x-terminal making the conversations accessable and inaccessable. 3. any other secret method which a user may know to access conversations..