A system for reducing security risks in, for example, an enclosed area where there are documents, computer discs, and other items which may contain security sensitive information. Each security sensitive item has an RFID tag attached thereto, and during non-working hours these items are placed in locked...http://www.google.de/patents/US6774782?utm_source=gb-gplus-sharePatent US6774782 - Radio frequency personnel alerting security system and method
