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Employers use tools such as calculators and clocks that come with built-in cameras and listening device, to keep a track of their employees.
Now, even the regular PC mouse is no longer innocent. A variant, spy mouse, that looks the same as the normal mouse, comes with a listening device and a SIM card embedded in it. A phone call is used to activate the device, which then captures sounds and conversations within a 10-metre radius. (more) (many spy mice)