Abstract: A collapsible security container is disclosed. The collapsible security container comprises a collapsible box and a hinged-lid connected to the collapsible box. The collapsible box comprises a bottom panel: a front panel, a left side panel, a right side panel and a back panel connected to the bottom panel by fold lines along respective edges of the bottom panel, wherein the bottom panel, front panel, left side panel, right side panel and back panel define an interior compartment. A locking system secures the hinged-lid to the collapsible box. A strap is attached to the collapsible box. The strap has an attachment end that is attached to the collapsible box and a free end that terminates in a fastener or stopper for securing the security container about or to a structure such as a door or wall.