Abstract: An armored protective system for telephone wires on the exterior of a building to prevent severing (cutting, breaking, etc.) of the wires by an intended intruder into the building. Standard telephone service components are covered with interlocking tamper-proof cover elements. These include, in the preferred embodiment, metallic protector channel members to cover otherwise exposed wires, and a protective cover on other telephone system components that overlap the protector channel members so as to eliminate points at which the telephone wires can be severed. The protective cover is provided with a self-contained alarm unit to emit an audible sound when the protective cover is disturbed from its fixed position on the building. Fastening elements for attaching the components to a building wall are of the type that require specialized tools.