Confidential information management by mobile terminal
First Claim
1. A communication system including a mobile terminal for performing a communication and a server for managing information needed for the communication performed by the mobile terminal, wherein:
- the server transfers, responding to a request from the mobile terminal, communication information managed by the server to the requesting mobile terminal, and stores and manages collectively the communication information transferred from the requesting mobile terminal; and
the mobile terminal includes;
a terminal data storing device which stores data;
a data processor which executes creation or editing of the data to be stored in the terminal data storing device;
a confidential data managing unit which manages confidential data to be stored in the terminal data storing device by adding a confidential flag to confidential data, the confidential data being information among the communication information designated by a user;
an updated data managing unit which manages updated data that is newly created and updated to be stored in the terminal data storing device by adding an update flag to the updated data; and
a security operation executing unit which transmits the confidential data with the confidential flag and the updated data with the update flag to the server, and then erases the confidential data with the confidential flag and the new data with the update flag.
1 Assignment
0 Petitions
Accused Products
Abstract
To provide a communication system including a mobile terminal which can prevent leak of information even if the mobile terminal is lost and reproduce previously accumulated confidential data without losing newly created and updated confidential data. A mobile terminal includes connection state judging device which detects a line connection state with a server. When the line connection state is a broadband connection, the data is read directly from and written directly into a data storing device of the server. When the line connection state is a narrowband connection, the data is temporarily read out and written into a data storing device of the terminal. When the operation of the mobile terminal is completed or a security operation starting instruction is issued by a user, the updated confidential data is written into the data storing device of the server and then the confidential data is erased from the mobile terminal.
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Citations
20 Claims
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1. A communication system including a mobile terminal for performing a communication and a server for managing information needed for the communication performed by the mobile terminal, wherein:
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the server transfers, responding to a request from the mobile terminal, communication information managed by the server to the requesting mobile terminal, and stores and manages collectively the communication information transferred from the requesting mobile terminal; and the mobile terminal includes; a terminal data storing device which stores data; a data processor which executes creation or editing of the data to be stored in the terminal data storing device; a confidential data managing unit which manages confidential data to be stored in the terminal data storing device by adding a confidential flag to confidential data, the confidential data being information among the communication information designated by a user; an updated data managing unit which manages updated data that is newly created and updated to be stored in the terminal data storing device by adding an update flag to the updated data; and a security operation executing unit which transmits the confidential data with the confidential flag and the updated data with the update flag to the server, and then erases the confidential data with the confidential flag and the new data with the update flag. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A mobile terminal which performs communication based on communication information managed by a server, comprising:
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a terminal data storing device which stores data; a data processor which executes creation or editing of the data to be stored in the terminal data storing device; a confidential data managing unit which manages confidential data to be stored in the terminal data storing device by adding a confidential flag to confidential data, the confidential data being information among the communication information designated by a user; an updated data managing unit which manages updated data that is newly created and updated to be stored in the terminal data storing device by adding an update flag to the updated data; and a security operation executing unit which transmits the confidential data with the confidential flag and the updated data with the update flag to the server, and then erases the confidential data with the confidential flag and the new data with the update flag. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A non-transitory computer readable recording medium storing a security program causing a microprocessor of a mobile terminal, which performs communication based on communication information managed by a server, to execute:
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storing data within a terminal data storing device of the mobile terminal; executing creation or editing of the data to be stored in the terminal data storing device; managing confidential data to be stored in the terminal data storing device by adding a confidential flag to confidential data, the confidential data being information among the communication information designated by a user; managing updated data that is newly created and updated to be stored in the terminal data storing device by adding an update flag to the updated data; and transmitting the confidential data with the confidential flag and the updated data with the update flag to the server, and then erasing the confidential data with the confidential flag and the new data with the update flag. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A communication method of performing a communication using a mobile terminal, by combining the mobile terminal for performing a communication and a server for managing information needed for the communication performed by the mobile terminal, comprising:
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storing data within a terminal data storing device of the mobile terminal; executing creation or editing of the data to be stored in the terminal data storing device; managing confidential data to be stored in the terminal data storing device by adding a confidential flag to confidential data, the confidential data being information among the communication information designated by a user; managing updated data that is newly created and updated to be stored in the terminal data storing device by adding an update flag to the updated data; and transmitting the confidential data with the confidential flag and the updated data with the update flag to the server, and then erasing the confidential data with the confidential flag and the new data with the update flag. - View Dependent Claims (20)
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Specification