Protection of devices

摘要

A portable data storage device is described having a short range wireless communication interface. The device is configured to communicate with a backup device over the wireless communication link. The device may further include means for initiating an alert procedure on separation of the backup device from the portable data storage device, for example disabling at least one function of the portable data storage device, locking the portable data storage device or communicating a unique identifier of the portable data storage device to a network. Methods of operating the portable data storage device are further described.