Philosophy informs us that knowledge requires belief, truth, and justification. Let x be an assertion, e.g. "Sweden is not Snowden", and suppose I claim to know x. If so, I have to believe x, x must be true, and my belief in x must be justified.
Knowledge appears to be information which is correct and which has been logically internalized. Information exists on its own but knowledge requires an actor. When would it be meaningful to talk about Knowledge Security, rather than Information Security?