Abstract: A security device for obscuring an opening defined by a frame (100) is provided comprising a door panel portion (1) forming at least a part of a door which, in use, is supported relative to the frame. The door panel portion has a front face and a rear face and an aperture provided therein, a lock retaining member (2) having a first lock receiving aperture (6) provided therein and a second lock receiving aperture (7) provided therein. Each lock receiving aperture is adapted to receive a lock and the lock retaining member is adapted to be secured to the rear face of the door panel portion in at least a first and a second position and in which first position the first and second lock receiving apertures are visible through the aperture in the door panel portion, and in the second position only one of the lock receiving apertures is visible through the aperture.