ELECTRONIC BOOK SECURITY FEATURES

摘要

A method and system for protecting content on a device are described, the method and system comprising providing a device, the device having at least one encrypted content item, the at least one encrypted content item being consumable only in at least one geographic zone, the device including a communication element and a storage module, the communication element being operative to communicate with a control center, the control center being operative to perform at least one of identifying the device, and tracking the device, establishing a communication session between the device and the control center, verifying that the device is within the one geographic zone, in response to a positive result of the verifying providing a decryption key to the device, thereby enabling decrypting the at least one encrypted content item, decrypting the at least one encrypted content item, thereby producing a decrypted content item, performing at least one of the following storing the decrypted content item in device memory, and outputting the decrypted content item to a device screen, and continuing, on an episodic basis, to verify that the device is within the one geographic zone, performing at least one of the following in response to a negative result of the verifying purging from the device memory the decrypted content item, preventing the device from continuing to operate, clearing the device display screen, and disabling the decryption key. Related hardware, methods and systems are also described.