Mass surveillance is the surveillance of all or a substantial fraction of, the entire population. Mass surveillance may be done either with or without the consent of those under surveillance, and may or may not be in their interest.

For example, the monitoring of the population for disease in epidemiology, would generally be viewed as a benign form of mass surveillance, but a network of secret police informers would not.

Voluntary mass surveillance

to be written

Involuntary mass surveillance

to be written

See also: