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U.K. intelligence agency GCHQ captured and stored webcam images of millions of Yahoo users including substantial quantities of sexually explicit material, the Guardian newspaper reported Thursday.
GCHQ files dating between 2008 and 2010 explicitly state that a surveillance program codenamed Optic Nerve collected still images of Yahoo webcam chats in bulk and saved them to agency databases, regardless of whether individual users were an intelligence target or not. Webcam videos were not captured in their entirety, but Optic Nerve rather saved one image every five minutes to avoid overloading the agency’s servers and partly to comply with human rights legislation, according to the report.
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