Secure interface box and method for protecting a connection with such a box

摘要

A secure interface box (210) for connecting a network (100) and a device (165) unable to protect data according to a protection method used in the network (100). The interface box (210) stores a secret which is used to protect communication between the network (100) and the device (165). The interface box (210) further monitors that the connection to the device (165) remains unbroken, and erases the secret in case the connection is broken. Also provided is a method.