fire and security systems
Termed participatory surveillance, individuals using sites such as Facebook voluntarily provide personal information
about themselves in a profile and knowingly give permission for other sites to access their profiles in order to gain access to news, weather, and other information or even to be able to play games
online. Most social networking sites ask their users to provide these kinds of details. This information commonly appears in casual digital conversations within given social networking communication platforms. Consequently, personal information about people is not something necessarily hidden that must be uncovered or retrieved using exotic technologies, human agents or advanced bugging equipment. People themselves are knowingly publishing this information on public websites accessible by almost anyone with internet access and often available without cost. Additionally, the devices that gather information about others that may subsequently be used for covert surveillance today are not relegated to government alone, as presented in the novel 1984.