Espionage

Espionage, spying, or intelligence gathering, as a subfield of the intelligence field, is the act of obtaining secret, confidential, or in some way valuable information. Such information is also referred to as intelligence. A person who commits espionage as part of a specific mission is called an espionage agent or spy. A person who commits espionage as a fully employed officer of a government is called an intelligence officer. (Wikipedia)