Abstract: A non-armored apparatus for protecting an exterior telephone service line and telephone connection box. The apparatus comprises a layered structure which includes a non-conductive, preferably plastic or rubber substrate, which is sized and dimensioned to encase a space which includes the telephone service line and telephone connection box. A pair of conductive layers or films, separated by an insulating layer, are disposed on the substrate. Each of the conductive layers is electrically connected to an electrical contact which in turn is connected to a building alarm and/or security system. Detection switches are also provided to detect any unauthorized attempt to remove the shield. Any attempt by an intruder to cut the telephone service lines or disconnect the telephone connection box will trigger an alarm via the detection switch and/or a short circuit created between the conductive layers by, for example, use of a drill, saw, knife, or the like, to penetrate the shield.