Collapsible security container for packages

A collapsible security container, comprising:

• a collapsible box comprising:
• a bottom panel;
• and
• 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;
• and
• a bottom flap panel located within the interior compartment, wherein the bottom flap panel is connected proximate to an intersection between respective edges of the back panel and bottom panel, wherein the bottom flap panel is parallel to the bottom panel, left side panel and right side panel, and wherein the bottom flap panel is foldable to form a double panel on the bottom of the collapsible box when folded parallel thereto;
• a hinged-lid connected to the collapsible box;
• a locking system for securing the hinged-lid to the collapsible box;
• and
• a strap attached to the collapsible box, the strap having 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.