Abstract: A security apparatus for enclosing the branch connections of a cable-TV aerial tap unit to prevent unauthorized used thereof including a box like structure mounted on the bottom of the tap unit to enclose the cables and connections thereof and providing a keyed hinged door to allow access to the interior of the box like structure to access the cables and the method of securing the same by providing either a slidable clip or a rotatable clip attached to the box like structure that has an opening that engages the shank of the existing bolt of the tap unit when the bolt is loosened while the bolt head bears against the slidable or rotatable clip to hold the box like structure in place so as to allow the tightening thereof to secure the apparatus in place.