Patent ID: 7370198

Claim:
A total system for preventing information outflow from inside, comprising: a program installed on at least one user computer for storing a file to a storage device connected to the at least one user computer; a security administration client including a file security control unit for encoding content of the file when storing the encoded file into said storage device according to a request from said program, and providing a decoding key for the encoding file; and a security administration server for receiving, through communications with said file security control unit, the decoding key for said encoded file and storing the decoding key in a database of the server; wherein, when said program requests the encoded file stored in the storage device, the file security control unit decodes the encoded file using the decoding key and transfers the decoded file to said program; and wherein the file security control unit receives a human-readable transfer description, the transfer description describing the purpose of the transfer to said storage device, and transmits the transfer description to the security administration server for database storage.