Private/personal information is defined as any linguistic expression that has referent(s) of type natural person. Private information can be classified as: (1) atomic private information is an assertion that has a single human referent, and (2) compound private information is an assertion that has more than one human referent. If p is a piece of atomic private information of person v, then p is proprietary private information of v, and v is itsproprietor. A possessor refers to any agent that knows, stores, or owns the information [2].