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  2. Surveillance - Wikipedia

    en.wikipedia.org/wiki/Surveillance

    Surveillance is used by citizens, for instance for protecting their neighborhoods. It is widely used by governments for intelligence gathering, including espionage, prevention of crime, the protection of a process, person, group or object, or the investigation of crime. It is also used by criminal organizations to plan and commit crimes, and by ...

  3. Mass surveillance in the United States - Wikipedia

    en.wikipedia.org/wiki/Mass_surveillance_in_the...

    The practice of mass surveillance in the United States dates back to wartime monitoring and censorship of international communications from, to, or which passed through the United States. After the First and Second World Wars, mass surveillance continued throughout the Cold War period, via programs such as the Black Chamber and Project SHAMROCK.

  4. Computer and network surveillance - Wikipedia

    en.wikipedia.org/wiki/Computer_and_network...

    Computer and network surveillance. Computer and network surveillance is the monitoring of computer activity and data stored locally on a computer or data being transferred over computer networks such as the Internet. This monitoring is often carried out covertly and may be completed by governments, corporations, criminal organizations, or ...

  5. Closed-circuit television - Wikipedia

    en.wikipedia.org/wiki/Closed-circuit_television

    The system is used by Chicago's Office of Emergency Management in case of an emergency call: it detects the caller's location and instantly displays the real-time video feed of the nearest security camera to the operator, not requiring any user intervention. While the system is far too vast to allow complete real-time monitoring, it stores the ...

  6. Mass surveillance - Wikipedia

    en.wikipedia.org/wiki/Mass_surveillance

    Mass surveillance is the intricate surveillance of an entire or a substantial fraction of a population in order to monitor that group of citizens. [1] The surveillance is often carried out by local and federal governments or governmental organizations, but it may also be carried out by corporations (either on behalf of governments or at their own initiative).

  7. Public health surveillance - Wikipedia

    en.wikipedia.org/wiki/Public_health_surveillance

    A passive surveillance system consists of the regular, ongoing reporting of diseases and conditions by all health facilities in a given territory. An active surveillance system is one where health facilities are visited and health care providers and medical records are reviewed in order to identify a specific disease or condition. [3]

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