KR100730468B1 - System for exposure preventing individual information in an lost mobile terminal and method thereof - Google Patents

Abstract

The present invention discloses a system and method capable of preventing the leakage of personal information for a lost terminal. The system according to the present invention, for receiving the information leakage prevention service request and service release request from the wired and wireless terminal, performing user authentication using the wired and wireless terminal, for forced transmission of the terminal operation program for preventing information leakage of the lost terminal Management server; A database connected to a management server to store the terminal operating program and user information, and storing an authentication algorithm for user authentication based on the user information; Recognizing the power on state of the lost terminal, and in response to the service registration confirmation, the service registration confirmation result and the service execution request of the management server for the lost terminal, to provide a terminal operating program to the lost terminal An exchange controlling a call connection; And a home location register (HLR) for executing service registration in response to the service registration and release request of the management server and notifying whether or not the service is registered in response to the service registration confirmation request from the exchange. Therefore, the present invention can easily block the display or reading of personal information, thereby minimizing the user's concern or anxiety about the loss of the terminal.

Lost terminal, information leakage, personal information, phone number, sent mail, photo, notepad, schedule

Description

Personal information leakage prevention system and method for lost terminal {SYSTEM FOR EXPOSURE PREVENTING INDIVIDUAL INFORMATION IN AN LOST MOBILE TERMINAL AND METHOD THEREOF}

1 is a block diagram showing a personal information leakage prevention system for a lost terminal according to the present invention.

2 is a view for explaining a personal information leakage prevention algorithm according to the present invention.

3 is a flowchart for explaining the main operation of the present invention.

<Explanation of symbols for main drawings>

101: management server 103: switchboard

105: home location register 107: lost terminal

109: database 111: wired and wireless terminal

The present invention is to prevent the leakage of personal information for the lost terminal, more specifically, the personal information for the lost terminal that can stop and control the display mode that can be leaked and the personal information leakage online when the terminal is lost A spill prevention system and method are disclosed.

In general, the locking function added to the mobile communication terminal always includes a lock using an external lock key when the power is turned on. When the power is turned on, the lock function is set only when the user turns on the mobile communication terminal. If the user releases the lock function to use the terminal, the lock is released until the terminal is turned off and on again.

The lock function using the external lock key is locked when the user selects the lock function key provided on the outside of the terminal. If the lock is released until the user resets the lock function key once, the terminal power is turned on / off. The set lock status is maintained regardless of off. In addition, the always lock function requires the user to enter a password of the unlock code set every time the user uses the terminal even if the lock function is released in the initial state of the mobile terminal, and functions such as the terminal menu except for the call or privacy protection function. Is available.

Among these conventional lock functions, there is an inconvenience of using an external lock key or a lock function when the power is turned on, in which the user needs to release and reset the lock function every time the user uses the terminal. In addition, even when such a lock function is set, there is a problem in that the menu function of the terminal can be used to set the lock using a lock key provided outside the terminal in order to protect personal information.

In addition, if the terminal is lost without setting a locked state, the lost terminal user may be charged an unfair fee due to the abuse of the acquired third party. By requesting to stop or stop the transmission through the use of the lost terminal is prevented. As such, when the user prevents the use of the lost terminal and tries to call another terminal and finds his terminal, there is a need to contact the mobile communication terminal service provider again to terminate the preset call stop state of the terminal.

In order to solve this problem, an automatic locking device of a mobile communication terminal for automatically locking the terminal when a key input event does not occur for a predetermined time in the mobile communication terminal is disclosed.

According to the published literature, the lock data storage unit stores lock control data according to the time interval data by the key input of the terminal, and detects predetermined time data from the time interval data input through the key input unit of the terminal. A time data detection unit, a time data analysis unit for analyzing the data detected by the time data detection unit, and outputting the lock control data, and outputting the lock data stored in the time data inputted through the key input unit of the terminal and the lock data storage unit; The controller is configured to control the locking operation of the mobile communication terminal. The time interval data is any one of 1 hour to 24 hours, and the lock operation control of the terminal by the controller is locked even when the terminal is turned on in the initial operation.

Therefore, if a key input event does not occur for a certain period of time, the mobile terminal automatically locks the terminal, thus losing the personal credit card when it loses the lost mobile terminal, especially the mobile terminal equipped with the electronic payment function. The consequences and the loss of personal information solve a serious problem.

However, if there is no key input within a predetermined time as described above, since the lock function is executed for the terminal, personal information leakage is substantially diverged between the time point of the loss of the terminal and the execution time of the lock function. Of course, the execution time of the lock function of the terminal can be shortened, but this causes not only inconvenience in use as described above, but also lacks safety to prevent leakage of personal information in view of the simplicity of the password.

The present invention was created to solve the above problems, and an object of the present invention is to provide a system and method for preventing personal information leakage for a lost terminal that can prevent unauthorized leakage of privacy-related information stored in the lost terminal. have.

Another object of the present invention is to stop the mode such as picture display function, phone number search function and transmission message confirmation function when the terminal is lost, and to maintain the mode such as the incoming call function and the message receiving function to prevent infringement of personal privacy. It is to provide a system and method for preventing personal information leakage for a lost terminal that can be prevented.

The personal information leakage prevention system for a lost terminal according to the first aspect of the present invention for achieving the above object, after receiving the information leakage prevention service request and service release application from the wired and wireless terminal, the user authentication using the wired and wireless terminal On the basis of the management server for forcibly transmitting a terminal operating program for preventing information leakage of the terminal to the lost terminal; And a database connected to the management server to store the terminal operation program and user information, and to store an authentication algorithm for user authentication based on the user information.

According to a preferred embodiment of the present invention, the terminal operation program for preventing information leakage, the search prevention algorithm for the pre-stored phone number to the lost terminal, the check prevention algorithm for the transmission mail previously stored in the lost terminal and the lost Characterized in that the display prevention algorithm for the pre-stored picture to the terminal.

The terminal operating program is set from a key button of the lost terminal and is characterized by deleting or updating respective designated address information corresponding to each algorithm.

On the other hand, the method for preventing personal information leakage for a lost terminal according to the second aspect of the present invention for achieving the above object, in the method for preventing personal information leakage for a lost terminal, a) using a wired or wireless terminal to the lost terminal; Receiving a request for preventing personal information leakage; b) determining a connection state through the call for the lost terminal, but continuing the step b) if the lost terminal cannot maintain the call path; And c) downloading the terminal operating program for disabling the display or reading mode for the personal information previously stored in the lost terminal when the lost terminal maintains the call path as a result determined in step b). It characterized by consisting of;

According to another embodiment of the present invention, after the step a), a-1) characterized in that it further comprises the step of performing a user authentication for the lost terminal.

In addition, the display or viewing mode for the personal information in step c) is characterized in that it includes a phone number search mode, transmission mail confirmation mode, photo information display mode, notepad reading mode, schedule management mode.

In addition, the terminal operating program is characterized in that to delete or update the respective designated address information corresponding to each mode.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, in the present invention, it is possible to access a privacy infringement prevention service for a lost terminal through a wired Internet, a wireless Internet, or a telephone network. In addition, the above-mentioned communication network is used to easily register and release the corresponding service. This is to prevent prolonged lost time due to the service registration procedure, and is based on predetermined user authentication. And, in order to easily release the service, even if the loss situation for the terminal is not firm, the service registration is performed first, and later, the service can be induced later to prevent the leakage of personal information as much as possible. .

1 is a block diagram showing a personal information leakage prevention system for a lost terminal according to the present invention. As shown, for receiving the information leakage prevention service request and service release request from the wired / wireless terminal 111, to perform user authentication using the wired / wireless terminal 111, and to prevent information leakage of the lost terminal 107 A management server 101 for controlling transmission of a terminal operating program; A database (109) connected to the management server (101) to store the terminal operation program and user information and to store an authentication algorithm for user authentication based on the user information; Recognizing a power on state for the lost terminal 107, in response to the service registration confirmation, the service registration confirmation result and the service execution request of the management server 101 for the lost terminal 107 A switch 103 for controlling a call connection for providing the terminal operating program for preventing the information leakage to the lost terminal 107; A home location register (HLR) 105 for executing service registration in response to a service registration and release request of the management server 101 and notifying whether or not a service is registered in response to a service registration confirmation request of the exchange 103. do.

The wired / wireless terminal includes a mobile communication terminal, a wired telephone, a personal computer (PC), and the like, and the management server 101 and the wired / wireless terminal use a mobile communication network (CDMA, WCDMA), a telephone network (PSTN), a router (Router). Or the like).

On the other hand, the terminal operation program for preventing information leakage, the search prevention algorithm for the phone number previously stored in the lost terminal 107, the check prevention algorithm for the transmission mail previously stored in the lost terminal 107 and the lost terminal 107, a display prevention algorithm for the pre-stored picture. In this case, in addition to the algorithm described, the terminal operating program stops the terminal function capable of leaking personal information.

Therefore, the terminal operation program can prevent the verification of the voice mailbox regardless of the password input, it is of course possible to prevent the reading of the latest outgoing telephone number, the latest incoming telephone number, missed reception number, schedule management, notepad, etc. .

The terminal operating program is a program for realizing an information leakage prevention service and takes a download form to the lost terminal 107. In addition, the program capacity is minimized so that such a program download can be performed quickly in an optimal state. For this purpose, a decoding update method for each algorithm programmed for each function of the terminal can be taken.

For example, as shown in Figure 2, the internal operating system of the lost terminal 107 is a key scan algorithm for receiving a key signal of a key button provided as a lost terminal, and corresponding to the key signal recognized by the key scan algorithm It includes a number of program operating algorithms, including a decoding algorithm for extracting a program. Here, the decoding algorithm selects one program operation algorithm corresponding to a user selection, that is, a key button signal. The terminal operation algorithm is selected according to a preset addressing as a decoding algorithm. In this case, the terminal operating program according to the present invention modifies the decoding algorithm so as not to select a specific function of the terminal.

Here, the terminal operating program may delete or modify a designated address of a corresponding program operation algorithm corresponding to the predefined terminal function in performing the stop control on the predefined terminal function to prevent information leakage. Of course, when the user requests the release of the information leakage prevention service, the terminal function may be normalized by resetting or correcting the designated address for the terminal operation algorithm.

Of course, since the designated address for the program operation algorithm is implemented in different forms according to the type and manufacturer of the terminal, the management server 101 preferably provides a terminal operation program corresponding to the type of the terminal. To this end, the switch 103 precedes the model identification for the lost terminal 107 before starting the service, and the home location register 105 further adds the terminal model information corresponding to the lost terminal 107 information. Include.

On the other hand, the terminal operating program applied in the present invention may be replaced with a key value in the form of a short message within a predetermined size, for example, 80 bytes. That is, the lock key value may be transmitted through the overhead channel without performing a call connection with the lost terminal, so that the specific function of the terminal may be stopped or released. The purpose of executing the information leakage prevention service using the lock key value is to shorten the service execution time, so that the learner of the terminal does not recognize the service execution.

3 is a flowchart for explaining the main operation of the present invention. As shown, in step S301 after the user lost the terminal, the user applies for information leakage prevention service through the wired or wireless terminal 111. The wired / wireless terminal 111 may be a mobile communication terminal, a wired telephone, a personal computer (PC), and the like, and thus the management server 101 interworks with a communication network for connecting to the wired / wireless terminal 111.

In step S303, the user accesses the management server 101 by using the wired / wireless terminal 111 and inputs personal information or terminal information according to a predetermined authentication procedure. The management server 101 receives the information leakage prevention service according to the authentication result. The management server 101 requests the service registration to the exchange 103. The exchange 103 instructs the home location register 105 to register a service in response to a service registration request. The home location register 105 sets a flag according to service registration.

In step S305, the exchange 103 recognizes the setting state of the call to the lost terminal 107. This determines whether the power supply to the lost terminal 107 is kept in the on state, and maintains step S305 when the power is off. However, if the power supply for the lost terminal 107 is maintained in the ON state, that is, the state is possible to set the call, enters to step S307. The exchange 103 receives the location information for the lost terminal 107 through the home location register 105, and assumes the reception of the location information as a callable state for the lost terminal 107. This is done when the lost terminal 107 is currently in a power-on state, that is, when the lost terminal 107 switches from a power-off state to a power-on state, and the exchange 103 is the home position register 105. The state change for the lost terminal 107 is recognized.

Then, the exchange 103 determines whether the lost terminal 107 is registered in the information leakage prevention service from the home location register 105. If it is determined that the lost terminal 107 is not registered in the information leakage prevention service, the normal service operation for the lost terminal 107 is performed in step S309. On the other hand, if the lost terminal 107 is registered in the information leakage prevention service, as a result determined in step S307, step S311 is entered.

The exchange 103 requests the management server 101 to execute a service. The management server 101 is provided with a terminal operating program from the database 109. In step S313, the management server 101 requests a call connection with the lost terminal 107 to the switch 103, and loses the terminal operating program in the call connection state with the lost terminal 107. We download to (107). The terminal operation program may be set differently according to the terminal type for the lost terminal 107, and the management server 101 may receive terminal information from the home location register 105. The management server 101 may provide a corresponding terminal operation program based on the terminal information on the lost terminal 107.

In addition, the terminal operation program is to stop the use of a program that can expose the privacy of the operating program of the lost terminal 107, the program such as phone number search, transmission mail confirmation, photo display, notepad reading, schedule management, etc. To block. Therefore, after the terminal operating program is downloaded to the lost terminal 107, it is set to the system initial operation.

Such a terminal operating program will be described with reference to FIG. 2 as follows.

The terminal operating program is downloaded to a predetermined memory of the lost terminal 107. The lost terminal 107 searches for a program downloaded to the memory and recognizes a system initial operation command. Accordingly, the terminal operating program is replaced or updated with a part of the operating program in the lost terminal 107, as shown in the accompanying drawings. Here, a part of the operating program may be a decoding algorithm. This is because the program capacity for the decoding algorithm is small, so that stability for program download can be maintained.

The decoding algorithm is for selecting an algorithm corresponding to the key signal detected from the keypad of the lost terminal 107. For example, when a key button for selecting the camera mode of the lost terminal 107 is operated, the operation program of the lost terminal 107 is associated with shooting such as the photographing mode, photo management mode, photomail mode, photo studio mode, and the like. Enable the algorithm. Then, the user operates a key button for selecting any one mode. At this time, the decoding algorithm designates an address corresponding to any one mode so as to correspond to a key button.

Therefore, in step S315, the terminal operating program clears a specific mode, that is, the address of a program operation algorithm for preventing information leakage. Here, clear may be used in the same sense as masking or updating.

As a result, the lost terminal 107 is disabled the program operation algorithm that is concerned about the leakage of personal information by the terminal operating program (Disable), it is impossible to use the algorithm. Such programs may be 'phone number search algorithm', 'sent mail confirmation algorithm', 'photo display algorithm', 'schedule management algorithm'. The telephone number search algorithm includes 'recent call number search algorithm', 'recent call number search algorithm', 'missing call number search algorithm', 'notepad reading algorithm' and the like.

On the other hand, when the user wants to release the information leakage prevention service for the lost terminal 107 in step S317, that is, when the lost terminal 107 is recovered, the process enters the step S319. A user connects to the management server 101 using the wired / wireless terminal 111. The user performs a predetermined authentication procedure using the wired / wireless terminal 111. The management server 101 requests the switch 103 to release the service according to the authentication result. The exchange 103 updates the terminal information for service release to the home location register 105.

In step S321, the management server 101 is provided with a terminal operating program for releasing a service from the database 109, that is, switching to a normal function of the terminal. The management server 101 sets a call path to the lost terminal 107 through the exchange 103, and then downloads the terminal operation program. In this case, the lost terminal 107 is a state recovered by the user, and it is assumed that the lost terminal 107 is maintained in a power on state.

The terminal operating program for the normal function is to give a normal address to the program operation algorithm of the disabled (Disable) state, it is made through the update or masking the decoding algorithm.

As described above, the personal information leakage prevention system and method for a lost terminal according to the present invention, by forcing the terminal operation program that can prevent the leakage of personal information to the lost terminal, display or display of personal information By easily blocking the reading, or by easily regenerating the function recovery for the lost terminal prevented the leakage of personal information, there is an effect that can minimize the user's concern or anxiety about the terminal loss.

What has been described above is merely an embodiment of the present invention, and is not limited to the embodiment of the present invention, and as claimed in the following claims, without departing from the gist of the present invention, ordinary knowledge in the field to which the present invention belongs. Anyone having the technical spirit of the present invention to the extent that various changes can be made.

Claims (11)

In the personal information leakage prevention system for a lost terminal connectable to a mobile communication network, After receiving the information leakage prevention service request and service release request from the wired or wireless terminal, based on the user authentication using the wired or wireless terminal, a management server for forcibly transmitting a terminal operation program for preventing information leakage of the terminal to the lost terminal ; And A system for preventing the leakage of personal information to a lost terminal, comprising: a database connected to the management server to store the terminal operation program and user information, and storing an authentication algorithm for user authentication based on the user information. . The wired and wireless terminal of claim 1, Personal information leakage prevention system for a lost terminal, characterized in that using any one of a mobile terminal, a landline phone and a personal computer (PC). The method of claim 1, wherein the database, The terminal operating program is provided according to the type of the lost terminal, respectively, and the management server is characterized in that downloading the terminal operating program to the lost terminal based on the terminal information on the lost terminal from the home location register. Personal information leakage prevention system for a lost terminal. According to claim 1, The terminal operating program for preventing information leakage, The lost terminal comprising a search prevention algorithm for the phone number previously stored in the lost terminal, a check prevention algorithm for the transmission mail previously stored in the lost terminal, and a display prevention algorithm for the photo stored in the lost terminal. Personal Information Leakage Prevention System. According to claim 4, The terminal operating program, The personal information leakage prevention system for the lost terminal, characterized in that it is set from the key button of the lost terminal, and deletes or updates respective designated address information corresponding to each algorithm. The terminal operating program according to any one of claims 1, 4, and 5, wherein the terminal operating program comprises lock key information having a low capacity, and is provided to the lost terminal through an overhead channel. Personal information leakage prevention system for lost terminal. In the personal information leakage prevention method for a lost terminal, a) receiving a personal information leakage prevention service request for the lost terminal using a wired or wireless terminal; b) determining a connection state through the call for the lost terminal, but continuing the step b) if the lost terminal cannot maintain the call path; And c) downloading a terminal operating program for disabling the display or reading mode for the personal information previously stored in the lost terminal when the lost terminal maintains a communication path as a result determined in step b); Personal information leakage prevention method for a lost terminal, characterized in that consisting of. The method of claim 7, further comprising: a-1) performing user authentication on the lost terminal after the step a). The method of claim 7, wherein the display or reading mode for the personal information in step c) includes a phone number search mode, a transmission mail confirmation mode, a photo information display mode, a memo pad reading mode, and a schedule management mode. Personal information leakage prevention method for the terminal. The terminal operating program of claim 7 or 9, Personal information leakage prevention method for a lost terminal, characterized in that for deleting or updating the respective designated address information corresponding to each mode. The method of claim 7, wherein d) receiving a request to release the personal information leakage prevention service for the lost terminal using a wired or wireless terminal; e) determining a connection state through the call for the lost terminal, but continuing the step e) if the lost terminal cannot maintain the call path; And f) downloading the terminal operating program for enabling the display or reading mode for the personal information deactivated by the lost terminal when the lost terminal maintains a call path as a result determined in step e). Personal information leakage prevention method for a lost terminal characterized in that it further comprises.

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