| surveillance |
Surveillance is the art of monitoring the activity of something. In terms of civil society there are two main types of surveillance. Passive surveillance is the indirect monitoring of a person or organisation. For example, using financial transactions, or the use of communications media such as the Internet. Direct or intrusive surveillance is the direct intervention in the work of a person or organisation using technical means, such as bugs, or human operatives such as infiltrators. ...
출처: www.fraw.org.uk/library/005/gn-irt/glossary.html
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