Guarded space
Introduction
Surveillance is the monitoring of behavior. System surveillance is the process of monitoring people, objects or processes within systems for compliance with expected or desired standards in reliable systems for security or social control.[1][2] Clinical surveillance refers to the monitoring of diseases or public health-related indicators (for example, symptoms indicating the onset of epidemics or acts of bioterrorism) by epidemiologists and health professionals.[3].
Although the word surveillance literally means "to look over" in French, the term surveillance is usually applied to all forms of observation or monitoring, not just visual observation. However, the all-seeing “eye in the sky” is still the icon of surveillance. Closed circuit television is often used for surveillance in many modern cities and buildings. While surveillance can be a useful tool for security forces and companies, many people are concerned about the issue of loss of privacy.
Methods
The word surveillance is often used to describe observation from a distance using electronic equipment or other technological means. For example:.
• - eavesdropping or eavesdropping.
• - wiretapping.
• - directional microphones.
• - covert listening devices.
• - microcameras.
• - closed circuit television.
• - GPS tracking.
• - "bait car" vehicles specially modified to catch car thieves.
• - electronic espionage using hardware (such as a Keylogger) or software (for example Packet sniffer).
• - CCTV images.
• - military recognition.
• - aerial reconnaissance, with aircraft such as the Lockheed U-2.
• - spy satellites.
• - Trusted Computing computing devices.
• - computer and Internet surveillance.
However, surveillance also includes simple methods, with little or no technology involved, such as the use of binoculars, mail interception, or similar methods.