Definition

1. A person tasked with secretly obtaining a state's military, political, and economic secrets on behalf of another state, is known as an agent.
2. A person who investigates learns, and reports secrets belonging to others for a certain purpose and on behalf of someone else.

Origin

The word "casus," meaning "spy" in Turkish, originates from the Arabic word "cāsūs" (جاسوس). In Arabic, "cāsūs" describes a person who gathers information or provides intelligence. Over time, this word was adopted into Turkish as "casus," retaining the same meaning of a person who collects secret information on behalf of a state or organization. It has also been used similarly in both Persian and Ottoman Turkish.

Usage Areas

• Military Intelligence: Countries employ spies during wartime or in times of crisis to gather information about enemy forces. This intelligence is crucial in shaping military strategies.
• Political Intelligence: Nations or political groups engage in espionage to discover the plans or policies of their rivals. Such information is used to gain an advantage in diplomatic relations or decision-making processes.
• Economic Espionage: Companies or states may conduct espionage activities to learn their competitors' trade secrets, industrial innovations, or strategic plans. These activities aim to gain a competitive edge.
• Technological Espionage: This type of espionage targets institutions developing innovative technologies or conducting significant R&D activities. Information obtained in this field can be used to gain technological advantages.
• Cyber Espionage: Espionage activities conducted in digital environments. The aim is to capture data, infiltrate networks, or damage digital systems. Today, this is one of the most common types of espionage.
• Industrial Espionage: Activities conducted by a company to steal the trade secrets of its competitors. It typically targets information such as product formulas, customer lists, or marketing strategies.

Example Sentences

• Spies operating behind enemy lines shared crucial strategic information with their home country.
• The spy deciphered the rival state's plans, providing a significant advantage to the government.
• The cyber spy who infiltrated the company's computer system successfully stole sensitive data.
• The major technology company uncovered the activities of a spy attempting to steal information from its competitors.