Originator Controlled

Definition
the national security classification system allows the originator of a piece of intelligence to place the designation "Originator Controlled," or "ORCON," on a piece of intelligence. This means that the intelligence cannot be distributed further without the originator’s approval. This insistence on control is due in part to the fear that without such control the information will be leaked or inadvertently released and a critical source or method will be compromised. At least as important, controlling information is often seen as a way to preserve bureaucratic power.

Source

 * Creating a Trusted Network for Homeland Security, App. B.