FIELD: computer engineering, information security. SUBSTANCE: device has external information storage unit which is designed as power- independent memory, where personal information about user and hash information about all protected files of this user are stored. In addition device has read-only memory unit, controller for interface to computer, controller fro interface to external storage unit, remote contact unit for reading information from external storage unit. For connection to computer inputs and outputs of read-only memory unit and of computer interface controller are used. Device provides closed functionality environment for all users of computer. EFFECT: increased reliability of information protection against unauthorized access. 2 dwg
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