A hidden camera or spy camera or security camera is a still or video camera used to record people without their knowledge. The term “hidden camera” is commonly used in reality TV shows, sometimes when subjects are unaware that they are being recorded, and sometimes with their knowledge and consent. The term “spy camera” is generally used when the subject would normally be expected to object to being recorded as an invasion of their privacy. The term “security camera” is commonly used to provide a justification for a surreptitious recording, and can be contrasted with CCTV, which is visible and which sometimes is accompanied with a warning notice of its presence.
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