A security box system for securely housing a game camera includes a mount portion having a rear surface conforming to curvature of and secured to a tree with at least one aperture for a fastener passing therethrough, and a sleeve extending from the mount portion rear surface toward the tree. The sleeve surrounds the fastener aperture and is rotatable when contacted by a cutting implement. The cover portion has an opening for the camera to permit the photographing of game. The cover portion is securable to the mount portion to house the camera therebetween. An internal pin on the cover portion is positionable within a pin aperture on the mount portion to secure the cover portion to the mount portion and prevent removal therefrom. The pin and pin aperture are inaccessible from outside the security box system.