KR101731545B1 - System and method for providing voice phishing warning service during call - Google Patents

Abstract

The present invention relates to a voice phishing risk alarm system and method, and more particularly, to a call processing server connected to a call between a calling terminal and a called terminal in combination with a telephony network. A screen control server connected to the called terminal through a data network when a call reception event occurs in the called terminal through the call processing server; And a keyword detection server for detecting a voice phishing suspicious keyword in the voice signal from the calling terminal in cooperation with the voice recognition server. When the voice phishing suspicious keyword is detected in the keyword detecting server, And transmits a voice phishing risk notification signal to the called terminal through the voice phishing risk warning system.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a voice phishing warning system and method,

The present invention relates to a voice phishing risk warning system and method, and more particularly, to a voice phishing risk warning system and method in a busy state. More particularly, And more particularly, to a system and a method capable of providing a call to a called terminal in real time.

"Voice Phishing" refers to a fraudulent method of impersonating a relevant organization via telephone and extracting personal information or inducing remittance. As voice phishing becomes a social issue and people are aware of it, voice phishing techniques have evolved to such a degree. Recently, damage cases have been continuously reported. Thus, people are hesitant to receive calls from an increasingly unknown number of phones, and even a growing number of people who do not even receive calls from people not listed in the address book.

As a conventional technique for preventing voice phishing, there is known a service in which a telephone number used for voice phishing is stored in a communication service provider network and the call is originally blocked or informed to a called terminal. However, In this case, it takes much time and effort to acquire initial data. In addition, such information can only be confirmed on the receiving screen before receiving the call, and there is a limit to that the user can not be provided with the risk of voice phishing after receiving the call, that is, during communication.

There is also a problem in that there is no coping method in the case of using a telephone number not used for voice phishing.

In addition, as the voice phishing technique evolves, a new voice phishing method appears. It is difficult for the user to know how to cope with all the voice phishing cases in advance, and the user is instantly distracted and damaged. There is also a limitation that it can not be provided.

Also, a method of storing a voice phishing suspicious phone number in a user terminal has been proposed, but the same problem also exists.

Furthermore, there is also a problem that a telephone necessary for an actual called party is marked as spam, so that the reception of the telephone is cut off, or accurate information can not be provided.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for detecting a keyword related to voice phishing by analyzing a call content by voice recognition in cooperation with a system during a call, And to provide a system and method that can provide a voice phishing risk alert in real time.

Further, in order to cope with a voice phishing method which becomes more compact and varied in various forms, the present invention preliminarily databases predictable keywords in a voice phishing case and grasps in real time whether these keywords are detected through a voice call, Another object of the present invention is to provide a system and method capable of coping with voice phishing.

According to an aspect of the present invention, there is provided a voice phishing risk warning system for a call, the system comprising: a call processing server coupled to a call between a calling terminal and a called terminal in combination with a telephone communication network; A screen control server connected to the called terminal through a data network when a call reception event occurs in the called terminal through the call processing server; And a keyword detection server for detecting a voice phishing suspicious keyword in the voice signal from the calling terminal in cooperation with the voice recognition server. When the voice phishing suspicious keyword is detected in the keyword detecting server, And transmits a voice phishing risk notification signal to the called terminal through the voice phishing risk warning system.

Here, the call processing server can transmit the voice signal from the calling terminal to the keyword detecting server.

The screen control server may form a data path through the data network by receiving a data path formation request signal from the destination terminal when a call reception event occurs in the destination terminal and responding thereto.

The keyword detection server transmits the voice signal received from the call processing server to the voice recognition server. The voice recognition server receives the voice recognition result in the form of text data. It is preferable to detect the voice phishing suspicious keyword from the voice signal from the calling terminal by comparing the voice phishing suspicious keyword stored in advance.

The voice phishing risk notification signal may include a visual control signal for providing visual information to the display unit of the called terminal, a tactile control signal for causing the called terminal to vibrate, and an audible And a control signal.

Further, the destination terminal detects a telephone reception event at the destination terminal, determines whether or not the telephone number of the calling terminal that originated the telephone call is stored in the destination terminal, and if not, stores a driving signal in the data path management section ; A data path management unit for forming a data path through a screen control server and a data network by transmitting a data path formation request signal to the screen control server through a data network and receiving a response signal thereto when the driving signal is received from the driving unit; And a notification signal display unit for receiving a voice phishing risk notification signal transmitted through the data network from the screen control server and for providing a notification signal corresponding to the received voice phishing risk notification signal to the called terminal, . ≪ / RTI >

The notification signal display unit may provide a notification interface through which the voice phishing can be reported through the display unit.

According to another aspect of the present invention, there is provided a method for alerting a voice phishing risk in a voice phishing risk warning system as described above, wherein a call processing server is connected to a telephone communication network to provide a call connection between a calling terminal and a called terminal Stage 1; A second step of the screen control server being connected to the called terminal through a data network when a call reception event occurs in the called terminal through the call processing server; A third step of the keyword detection server detecting a voice phishing suspicious keyword in the voice signal from the calling terminal in cooperation with the voice recognition server; And a fourth step of transmitting a voice phishing risk notification signal to the called terminal through the data network when a voice phishing suspicious keyword is detected in the keyword detection server by the screen control server .

According to the present invention, when a keyword associated with voice phishing is detected by analyzing the contents of a call by voice recognition in cooperation with a system during a call, the user is notified of the voice phishing risk alert in real time The present invention can provide a system and a method that can be used.

Further, in order to cope with a voice phishing method which becomes more compact and varied in various forms, the present invention preliminarily databases predictable keywords in a voice phishing case and grasps in real time whether these keywords are detected through a voice call, It is possible to cope with voice phishing.

In addition, the present invention enables a user to make a telephone call related to stopping and reporting a damage to a relevant judicial institution or a financial institution immediately during a call or when a call is terminated, when a voice phishing is determined, It has the effect of preventing the damage in advance and minimizing the damage.

FIG. 1 is a diagram showing the overall connection relationship of the voice phishing risk warning system 100 according to the present invention.
2 is a diagram showing an internal configuration of the system 100. As shown in FIG.
3 is a diagram showing the internal configuration of the voice phishing risk management device 310 included in the called terminal 300. As shown in FIG.
FIG. 4 is a flowchart illustrating an embodiment of a voice phishing risk alert method performed in the system 100 described with reference to FIGS. 1-3.
FIG. 5 shows an example of an interface that indicates that the operation of the alarm system 100 is being performed with a risk of voice phishing.
6 is a screen showing a state in which a voice phishing risk notification signal is provided to the call receiving terminal 300. [

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

FIG. 1 is a diagram showing the overall connection relationship of the voice phishing risk warning system 100 according to the present invention.

Referring to FIG. 1, a voice phishing risk warning system 100 (hereinafter simply referred to as "system 100") according to the present invention is connected to a calling terminal 200 and a called terminal 300 through a telephone communication network And combines with the destination terminal 300 through the data network.

The system 100 analyzes a voice signal from the calling terminal 200 when a call is made through the telephone communication network from the calling terminal 200 to the called terminal 300, detects a voice phishing suspicious keyword, 300) transmits a voice phishing risk notification signal through a data network.

Here, a telephone communication network means a conventionally known network that provides a call service by a combination of a public switched telephone network (PSTN), a mobile communication network, and the Internet.

The data network refers to a data packet network such as the Internet, which means a separate data network independent of the telephone network.

The calling terminal 300 and the receiving terminal 400 are conventional wired / wireless communication terminals capable of performing a communication service through a telephone communication network. However, in the present invention, the receiving terminal 400 is preferably a smart phone capable of installing an application program Do.

2 is a diagram showing an internal configuration of the system 100. As shown in FIG.

Referring to FIG. 2, the system 100 includes a call processing server 110, a screen control server 120, and a keyword detection server 130.

The call processing server 110 is connected to the call between the calling terminal 200 and the called terminal 300 in combination with the telephone communication network and has a function of transmitting a voice signal from the calling terminal 200 to the keyword detection server 130 .

When the call connection request signal is transmitted from the calling terminal 200 to the called terminal 300 through the telephone communication network, the communication service provider on the telephone communication network confirms whether the user of the called terminal 300 is a service subscriber according to the present invention, And connects the call to the call processing server 110. The call processing server 110 establishes the connected call to bypass itself, connects the call to the communication carrier again, and connects the call to the called terminal 300 through the telephone communication network. The call from the calling terminal 200 to the called terminal 300 is connected through the call processing server 110 so that the call processing server 110 obtains the voice signal from the calling terminal 200 and detects the keyword To the server (130).

The screen control server 120 is connected to the destination terminal 300 through a data network when a call reception event occurs in the destination terminal 300 through the call processing server 110 to form a data path.

As described above, when a call connection request signal is transmitted to the destination terminal 300 through the telephone communication network through the call processing server 110, a call reception event is generated in the destination terminal 300. [ In this way, the call terminal 300 notifies the user that the telephone ring is ringing or the telephone is ringing due to vibration.

When the call reception event occurs, the destination terminal 300 transmits a data path formation request signal to the screen control server 120 through the data network, and the screen control server 120 responds thereto, A data path is formed between the control server 120 and the data network. Accordingly, the called terminal 300 can perform the call service with the calling terminal 200 through the call connected through the telephone communication network, and can receive the data from the system 100 by the data path formed through the data network, which is a data packet network independent from the telephone communication network. A voice phishing risk notification signal can be received from the user.

In this state, when it is detected by the keyword detection server 130 that the voice phishing suspicious keyword is included in the voice signal from the calling terminal 200, the screen control server 120 detects the voice phishing suspect keyword A voice phishing risk notification signal can be transmitted to the calling terminal 300 independently of the telephone communication network through the data path.

The voice phishing risk notification signal may include a visual control signal for providing visual information to the display unit of the destination terminal 300 or a tactile control signal for causing the destination terminal 300 to vibrate. In addition, the receiver terminal 300 may include an audible control signal for transmitting sound. Of course, any one of them may be used or two or more may be used in combination.

The keyword detection server 130 performs a function of detecting a voice phishing suspicious keyword in a voice signal from the calling terminal 200 in cooperation with a voice recognition server (not shown).

As described above, the call processing server 110 transmits a voice signal from the calling terminal 200 to the keyword detecting server 130, which transmits the voice signal to the voice recognition server . The voice recognition server performs voice recognition based on the received voice signal and transmits the voice recognition result to the keyword detection server 130 in the form of text data.

Here, the configuration of the speech recognition server and the speech recognition technology itself may be those known in the prior art, which are not a direct configuration of the present invention, and therefore, a detailed description thereof will be omitted.

The keyword detection server 130 detects a voice phishing suspicious keyword from the voice recognition result by comparing the words included in the text data received from the voice recognition result and the voice phishing suspicious keyword stored in the database.

The keyword detection server 130 previously stores keywords such as a bank, a deposit, a prosecutor's office, a password, a resident registration number, a name, and the like in a common voice phishing case as a suspicious keyword for voice phishing. As voice phishing techniques evolve, new voiced phishing cases are collected and new voiced phishing cases can be added to the database to respond to changes in voice phishing methods.

On the other hand, the technique of comparing keywords is known from the prior art, and this is not a direct object of the present invention, so a detailed description thereof will be omitted.

The keyword detection server 130 notifies the screen control server 120 that a voice phishing suspicious keyword is detected when it is detected that the voice phishing suspicious keyword is included in the voice signal from the calling terminal 200. [ Accordingly, the screen control server 120 transmits a voice phishing risk notification signal to the calling terminal 300 independently of the telephone communication network through the data path formed in the data network.

Meanwhile, the above-described functions of the called terminal 300 can be performed by an application program, and this application program will be referred to as a voice phishing risk management device in the present invention.

3 is a diagram showing the internal configuration of the voice phishing risk management device 310 included in the called terminal 300. As shown in FIG.

3, the voice phishing risk management device 310 includes a driving unit 311, a data path management unit 312, and a notification signal display unit 313.

The driving unit 311 detects a telephone reception event in the destination terminal 300 and discriminates whether or not the telephone number of the calling terminal 200 which sent the telephone call is stored in the telephone number of the destination terminal 300 or in the contact And transmits a driving signal to the data path management unit 312 when the voice phishing risk management device 310 is not stored.

The data path management unit 312 receives a signal indicating that the telephone number of the calling terminal 200 is not stored in the receiving terminal 300 from the driving unit 311 and transmits the signal to the screen control server 120 through the data network And forms a data path through the screen control server 120 and the data network by transmitting a data path formation request signal and receiving a response signal therefrom. That is, as described above, the function of forming a data path through the screen control server 120 and the data network is performed.

The notification signal display unit 313 has a function of providing a notification signal corresponding to the received voice phishing risk notification signal to the destination terminal when receiving the voice phishing risk notification signal transmitted through the data network from the screen control server 120 .

As described above, when the keyword suspicious keyword is detected in the keyword detection server 130, the screen control server 120 transmits a voice phishing risk notification signal to the destination terminal 300 through the data path formed in the data network The signal display unit 313 receives the voice phishing risk notification signal and provides a notification signal from the called terminal 300 in accordance with the received voice phishing notification signal so that the call currently being communicated to the user of the called terminal 300 is called a voice phishing And the like.

As described above, when the voice phishing risk notification signal is a visual control signal, a message such as "Please note that voice phishing is suspected ", etc. may be displayed on the display unit of the destination terminal 300. [ If the voice phishing risk alert signal is a tactile control signal, the mobile terminal 300 can be notified to the user of the called terminal 300 by vibrating the motor included in the called terminal 300. The tactile control signal may preferably be used with a visual control signal.

On the other hand, if the voice phishing risk notification signal is an auditory control signal, the called terminal 300 may generate a preset alarm sound. Alternatively, the screen control server 120 may transmit a voice signal "Please refer to the screen because voice phishing is suspected" as an auditory control signal through a call formed with the call receiving terminal 300.

On the other hand, the notification signal display unit 313 can display, on the display unit, a notification interface that allows voice phishing to be reported to an associated organization such as 112 or the like. If the user selects the reporting interface, the call is terminated with the calling terminal 200, and the call is immediately sent to the related institution or the call is automatically sent to the relevant agency after the call with the calling terminal 200 is terminated You may.

FIG. 4 is a flowchart illustrating an embodiment of a voice phishing risk alert method performed in the system 100 described with reference to FIGS. 1-3.

Referring to FIG. 4, when the calling terminal 200 sends a call to the called terminal 300, the calling terminal 300 is connected to the communication service provider through the telephone communication network (S100). As described above, It is confirmed whether the subscriber is a service subscriber according to the present invention, and when the subscriber is a service subscriber, it is informed to establish a call connection with the call processing server 110 by transmitting a service trigger signal to the call processing server 110 through the interworking IMS network S110).

The call processing server 110 sets itself to connect a call with the called terminal 300 by bypassing the call processing server 110 and then requests a call connection to the communication carrier again to notify that the call setup is completed, And transmits a connection request signal (S120, S130).

The call receiving event is generated in the destination terminal 300 and the driving unit 311 of the voice phishing risk management apparatus 310 detects a telephone reception event and stores the telephone number of the calling terminal 200 in the destination terminal 300 Or not. If it is not stored, the voice phishing risk management device 310 starts operation by transmitting a driving signal to the data path management unit 312 (S140). When the user of the destination terminal 300 responds to the call reception event, a call path is formed through the call terminal 200 and the call processing server 110 to make a telephone conversation with the call terminal 200.

The data path management unit 312 of the voice phishing risk management device 310 of the destination terminal 300 transmits a data path formation request signal to the screen control server 120 and transmits the data path formation request signal to the screen control server 120, And forms a data path with the screen control server 120 (S150).

At this time, the notification signal display unit 313 of the voice phishing risk management device 310 of the receiver terminal 300 may display an interface informing that the system 100 is operating on the display unit as shown in FIG. 5 have.

FIG. 5 shows an example of an interface that indicates that the operation of the alarm system 100 is being performed with a risk of voice phishing.

As shown in FIG. 5, when the user of the called terminal 300 recognizes that the operation of the system 100 according to the present invention is being performed through the call interface or the notification screen through the display unit of the called terminal 300 .

In this manner, the calling terminal 200 and the called terminal 300 form a call path bypassing the call processing server 110 through the telephone communication network, so that the call terminal 300 and the called terminal 300 And the screen control server 120 form a data path through the data network and receive a voice phishing risk notification signal from the screen control server 120 through the data path.

In this state, the call processing server 110 receives the voice signal of the user of the calling terminal 200 received through the call formed with the calling terminal 200, and transmits the voice signal to the keyword detecting server 130 (S160). The call processing server 110 may store the voice signal of the user of the calling terminal 200, perform appropriate processing on the voice signal, and transmit the packetized data to the keyword detection server 130.

Upon reception of the voice signal, the keyword detection server 130 performs appropriate processing, if necessary, and transmits it to the voice recognition server. The speech recognition server performs speech recognition on the received speech signal and transmits the result to the keyword detection server 130 (S180, S190). As described above, the speech recognition result is preferably transmitted in the form of text data.

The keyword detection server 130 detects the voice phishing suspicious keyword from the voice signal from the calling terminal 200 by comparing and analyzing the voice recognition result and the voice phishing suspicious keyword stored in advance (S200).

When it is detected that the voice phishing suspicious keyword is included in the voice signal from the calling terminal 200, the keyword detecting server 130 informs the screen control server 120 that the voice phishing suspicious keyword is detected, (S210).

Accordingly, the screen control server 120 transmits a voice phishing risk notification signal to the call receiving terminal 300 independently of the telephone communication network through the data path formed in the data network (S220) The control unit 313 provides a notification signal corresponding to the received voice phishing risk notification signal to the called terminal 300 (S230).

As described above, the voice phishing risk notification signal may include a visual, tactile, and auditory control signal. In the case of a visual control signal, the display portion of the destination terminal 300 may " "And the like can be displayed. In addition, if the voice phishing risk notification signal is a tactile control signal, the mobile terminal 300 can be informed to the user of the called terminal 300 by vibrating the motor included in the called terminal 300. [ The tactile control signal is preferably used in conjunction with the visual control signal.

6 is a screen showing a state in which a voice phishing risk notification signal is provided to the call receiving terminal 300. [

FIG. 6 shows an interface including a message that a visual control signal and a tactile control signal work together to include a message indicating that voice phishing is suspected, and at the same time, vibrates the receiving terminal 300, Will be announced.

In addition, the prosecution office can provide a button for connecting a telephone and a button for inquiring a resident registration number.

On the other hand, when the voice phishing risk notification signal is the auditory control signal, the calling terminal 300 may generate a preset alarm sound, or the screen control server 120 may generate a sound control signal " Quot; please refer to "through the call formed with the called terminal 300. [ At this time, instead of the screen control server 120, the keyword detection server 130 may transmit the auditory control signal.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

For example, the speech recognition server may be configured as a separate physical server, but it may be configured in the form of a speech recognition engine within the keyword detection server 130.

In the above embodiment, the speech recognition server transmits the speech recognition result to the keyword detection server 130 with respect to the entire received speech signal. However, it is also possible to extract only meaningful keywords from the speech recognition server and transmit them.

It is also possible that the keyword detection server 130 provides the detected voice phishing risk keyword to the called terminal 300 while providing the voice phishing risk notification signal to the called terminal 300. [

100 ... Voice phishing risk warning system during calls
200 ... calling terminal
300 ... incoming terminal
110 ... call processing server
120 ... Screen control server
130 ... keyword detection server

Claims (8)

As a voice phishing risk alert system during a call,
A call processing server coupled with a call between a calling terminal and a called terminal in combination with a telephony network;
A screen control server connected to the called terminal through a data network which is a separate data packet network independent of the telephone communication network when a call reception event occurs in the called terminal through the call processing server; And
A keyword detection server for detecting a voice phishing suspicious keyword in a voice signal from the calling terminal in cooperation with the voice recognition server;
Lt; / RTI >
The called terminal,
A driving unit for detecting a telephone reception event at the called terminal, determining whether or not the telephone number of the calling terminal that originated the call is stored in the called terminal, and transmitting the driving signal to the data path management unit when the telephone number is not stored;
A data path management unit for forming a data path through a screen control server and a data network by transmitting a data path formation request signal to the screen control server through a data network and receiving a response signal thereto when the driving signal is received from the driving unit; And
A notification signal display unit for receiving a voice phishing risk notification signal transmitted through the data network from the screen control server and providing a notification signal corresponding to the received voice phishing risk notification signal to the called terminal;
Lt; / RTI >
The screen control server forms a data path through a data network by receiving a data path formation request signal from a destination terminal when a call reception event occurs in a destination terminal and responding thereto,
When a voice phishing suspicious keyword is detected in the keyword detection server, the screen control server transmits a voice phishing risk notification signal to the called terminal through a data path formed through the data network,
The voice phishing risk notification signal includes a visual control signal for providing visual information to the display unit of the called terminal, a tactile control signal for causing the called terminal to vibrate, and an audible control signal Wherein the voice phishing risk warning system comprises:
The method according to claim 1,
Wherein the call processing server transmits the voice signal from the calling terminal to the keyword detection server.
delete The method according to claim 1,
The keyword detection server transmits the speech signal received from the call processing server to the speech recognition server, receives the speech recognition result in which speech recognition is performed by the speech recognition server in the form of text data, and stores the speech recognition result in advance And a voice phishing suspicious keyword is detected from the voice signal from the calling terminal by comparing the suspected voice phishing keyword.
delete delete The method according to claim 1,
Wherein the notification signal display unit provides a notification interface through which a voice phishing can be reported through a display unit. delete

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