IMSI-catchers are utilized in a few nations around the world by regulation enforcement and intelligence agencies, but their use has elevated substantial civil liberty and privacy problems and is particularly strictly regulated in certain countries.[112] Some firms look like "tagging" their staff by incorporating RFID tags in employee ID badges. https://productfoto43097.ouyawiki.com/685936/die_bedeutung_der_sicherheit_bei_der_alarmverfolgung