The Defender Wall Mounted PED Countermeasures Box is designed to defeat all TEMPEST, audio and video Technical Espionage threats inherent to PEDs. The Defender is capable of being configured in any number of units to accommodate small to large PED countermeasures/storage requirements. Each Defender features an internal PED charging port that allows the stored PED to be securely charged. This prevents PEDs from being charged in an insecure manner, in an open office environment, which could place classified, sensitive and private information at risk. The Defender also features a lock so that it can be mounted on the exterior of a facility if so desired. PEDs present a number of threats to the security of private businesses and government agencies everywhere. The Defender and its sister products, the Sentinel and the Guardian, are the only products designed to fully counter threats from cellular phones, PDAs and other wireless devices simultaneously. For added convenience, the Defender also features an internal PED battery charger. Designed for wall mounting, the Defender is capable of being configured in any number of units to accommodate small to large storage requirements.