Here are entered works on false or misleading information that is deliberately and/or covertly disseminated, often by an intelligence organization to confuse another nation's intelligence operations. Works on false or out-of-context information that is presented as fact regardless of an intent to deceive are entered under Misinformation.
Here are entered works on the collection and processing, for subsequent intelligence purposes, of information derived primarily from electronic signals that do not contain speech or text. Works on tracking, analyzing, and countering digital security threats are entered under Cyber intelligence (Computer security). --subdivision Electronic intelligence under individual wars, e.g. World War, 1939-1945--Electronic intelligence
--subdivision Secret service under names of wars, etc., e.g. World War, 1939-1945--Secret service; United States--History--Civil War, 1861-1865--Secret service
Here are entered works on governmental observation and inspection of library computers, patron records, etc., in the investigation of suspected criminal activity.
