beings in its normal closed position as shown in fig5 a the inside viewer engages the levers 425 a 425 b driving them toward each other e g the operator squeezes the levers together each shutter member 420 a 420 b pivots on its respective post 407 a 407 b such that the first shutter member 420 a rotates in one direction e g a counterclockwise direction while the second shutter member 420 b rotates in an opposite direction e g a clockwise direction the shutter members 420 a 420 b are rotated until the bodies 430 a 430 b clear the forward 450 and rearward 460 apertures once clear of the forward aperture 450 clear the inside viewer may look though the security cover 10 and the door viewer device to investigate the area proximate the front of the door once the levers 405 a 405 b are released the biasing member 455 drives the shutter members 420 a 420 b back to their normal closed position in which each body 430 a 430 b at least partially blocks the forward aperture 450 fig6 illustrates a security cover for a door viewer device in accordance with another aspect of the invention as shown the security cover 60 includes a housing 600 including a side wall 605 with a forward plate 610 defining a forward aperture 615 a rearward plate 620 defining a rearward or viewing.