JP6348081B2 - Call terminal and control method thereof - Google Patents

Description

  The present invention relates to a call terminal and a control method thereof.

  In recent years, a telephone call is made to a victim, posing as a relative or family member, such as a family member, relative, etc., allowing the victim to make a transfer to an account or receiving direct cash from the victim. The so-called “transfer fraud” that frauds money by doing so is a problem. Therefore, techniques for preventing wire fraud are being studied.

  For example, in Non-Patent Document 1, if phone numbers used for crimes such as wire fraud are listed (black list) and an incoming call is received, the source phone number is registered in the black list, A technique (first technique) for warning a user is disclosed.

  In recent years, many telephones are equipped with a function that allows a user to register a telephone number in advance. Therefore, when a terminal (terminal A) receives an incoming call from a telephone number (unregistered number) that is not registered in terminal A, it automatically transfers from terminal A to another terminal (terminal B) registered in advance. A technique (second technique) is also being studied that allows terminal B to intervene in a call between terminal A and the originating terminal.

“McAfee Safe Call”, [online], [March 24, 2015 search], Internet <URL: http://www.mcafee.com/japan/home/pd/safe_call/>

  However, in the first technique, there is a problem that a telephone number that is not registered in the black list cannot be handled.

  In the second technique, if the incoming call is from an unregistered number, another terminal can intervene in the call, which causes a problem in privacy. Moreover, since all unregistered numbers are targeted, there is a problem that detection accuracy is poor.

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems and provide a call terminal and a control method thereof capable of performing a notice of alerting to a transfer fraud with higher accuracy without infringing on privacy.

  In order to solve the above-described problem, a call terminal according to the present invention is a call terminal capable of registering a telephone number, and stores an incoming date and time from an unregistered number that is an incoming telephone number that is not registered in the call terminal. When the approach to the ATM device is detected by the storage means, the approach detection means for detecting the approach of the call terminal to the ATM device, the notification means for notifying the alert, and the approach detection means, the storage If the incoming date and time from the unregistered number stored in the means is included in a period from when the approach to the ATM device is detected to a predetermined time before, the judging means for notifying the notifying means And comprising.

  In order to solve the above-mentioned problem, the call terminal control method according to the present invention is a call terminal control method capable of registering a telephone number, and is an unregistered call number that is not registered in the call terminal. A step of storing an incoming date and time from a number; a step of detecting an approach of the call terminal to the ATM device; and a detection of an approach of the call terminal to the ATM device, from the stored unregistered number And a step of notifying an alert when the incoming date / time is included in a period from the time of detection of approach to the ATM device to a predetermined time.

  According to the call terminal and the control method thereof according to the present invention, it is possible to make a notice of alerting to a transfer fraud with higher accuracy without infringing on the privacy of the user.

It is a figure which shows the outline | summary of the transfer fraud prevention system which concerns on one Embodiment of this invention. It is a functional block diagram which shows the structure of the call terminal shown in FIG. It is a figure which shows the structural example of the unregistered number incoming date management table which the memory | storage means shown in FIG. 2 memorize | stores. It is a figure which shows the structural example of the ATM position information table which the memory | storage means shown in FIG. 2 memorize | stores. It is a flowchart which shows operation | movement of the incoming event acquisition means shown in FIG. It is a flowchart which shows an example of operation | movement of the telephone terminal shown in FIG. It is a flowchart which shows another example of operation | movement of the telephone terminal shown in FIG.

  Embodiments of the present invention will be described below.

  FIG. 1 is a diagram showing an overview of a wire fraud prevention system 1 according to an embodiment of the present invention.

  A wire fraud prevention system 1 shown in FIG. 1 includes a call terminal 10 and an ATM (Automated Teller Machine) device 20.

  The call terminal 10 is a communication terminal such as a mobile phone or a smartphone that is carried by the user 2 and has a function of performing a voice call. In addition, the call terminal 10 has a so-called telephone directory function in which the user 2 can register the telephone numbers and mail addresses of other terminals.

  The ATM device 20 is a device that is installed in a bank, a convenience store, or the like, and is capable of depositing / withdrawing and transferring money to an account.

  Usually, in a transfer fraud, the transfer fraudster 3 calls the person (user 2) who is attacked by the money transfer fraud, and tries to gain the trust of the person targeted by the attack by disguising his identity and identity. In general, the telephone number of the telephone 4 of the transfer fraudster 3 is not registered in the call terminal 10 of the attack target person, but the transfer fraudster 3 uses a false such as losing the telephone. , Gain the trust of the attack target. Then, the transfer fraudster 3 causes the attack target person who has trusted the transfer fraudster 3 to transfer money to an account managed by the transfer fraudster 3 or directly receives cash, thereby fraudulent money. Here, since the ATM device 20 is easy to withdraw cash or transfer to an account, it is often abused for a transfer fraud. Usually, the transfer fraudster 3 pretends to be "urgently needing money" and tries to withdraw money or transfer it to an account without giving the attack target enough time to think. There are many cases.

  In other words, if there is an incoming call from an unregistered number and then the call terminal 10 (user 2) approaches the ATM device 20 within a predetermined period, it is considered that there is a high risk of a transfer fraud.

  Therefore, in the present embodiment, when a call is received from an unregistered number that is an incoming phone number that is not registered in the call terminal 10, the call terminal 10 stores the date and time of the incoming call. When the call terminal 10 detects that the ATM terminal 20 has been approached, the call terminal 10 is not yet within a period (hereinafter sometimes referred to as a determination period) from the detection to a predetermined time (for example, several hours) before. It is determined whether there is an incoming call from the registered number. Then, when there is an incoming call from an unregistered number within the determination period, the call terminal 10 issues a notice of alerting that there is a risk of wire fraud.

  By carrying out like this, the notice of alerting to a transfer fraud can be performed. In addition, since it is not necessary to determine all incoming calls from unregistered numbers, it is possible to make a notice of alerting to a transfer fraud with high accuracy. Moreover, since a third party does not intervene in the call, privacy infringement can be prevented.

  Next, the configuration of the call terminal 10 will be described with reference to the functional block diagram shown in FIG.

  2 includes an incoming event acquisition unit 11, a storage unit 12, an approach detection unit 13, a time information acquisition unit 14, a notification unit 15, and a risk determination unit (determination unit) 16. Prepare. Note that the above-described units can be implemented by installing an application program in the call terminal 10, for example.

  The incoming event acquisition unit 11 acquires an incoming history (incoming call number and incoming date / time) to the call terminal 10 from the OS (Operating System) of the call terminal 10 at predetermined time intervals. As described above, the call terminal 10 has a function of registering a telephone number. The incoming event acquisition unit 11 extracts an unregistered number that is not registered in the call terminal 10 from the acquired incoming call history, and stores (stores) the incoming date and time from the extracted unregistered number in the storage unit 12. .

  The storage unit 12 stores an unregistered number incoming date / time management table for managing incoming date / time from an unregistered number and an ATM position information table for managing position information of the ATM device 20. FIG. 3 is a diagram showing an example of the configuration of the unregistered number arrival date management table. FIG. 4 is a diagram showing an example of the configuration of the ATM position information table.

  As shown in FIG. 3, the storage unit 12 stores an incoming date and an incoming time for each incoming call (management number) from an unregistered number.

  Moreover, the memory | storage means 12 memorize | stores the latitude and longitude of the ATM apparatus 20 for every management number (ATM management number) of the ATM apparatus 20, as shown in FIG.

  Referring again to FIG. 2, the approach detection unit 13 detects the approach of the call terminal 10 to the ATM device 20. For example, the approach detection unit 13 acquires position information (latitude and longitude) of the call terminal 10 based on a GPS (Global Positioning System) signal at predetermined time intervals. Then, the approach detection means 13 determines whether the call terminal 10 is approaching the ATM apparatus 20 based on the acquired position information of the call terminal 10 and the position information of each ATM apparatus 20 stored in the ATM position information table. Detect whether or not. Here, the approach detection means 13 is, for example, when the position of the call terminal 10 matches the position of the ATM device 20 or when the call terminal 10 exists within a predetermined range centering on the position of the ATM device 20. , It detects that the call terminal 10 is approaching the ATM device 20. When the approach detection unit 13 detects the approach of the call terminal 10 to the ATM device 20, the approach detection unit 13 notifies the risk determination unit 16 to that effect.

  Note that the method of detecting the approach of the call terminal 10 to the ATM device 20 is not limited to the method described above. When the communication terminal 10 and the ATM device 20 are capable of short-range communication (for example, Wi-Fi (Wireless Fidelity) or Bluetooth (registered trademark)), the approach detection unit 13 determines whether the communication terminal 10 is connected or not. The approach to the ATM device 20 may be detected. For example, when the ATM device 20 transmits a beacon by short-range communication and the call terminal 10 receives the beacon, the approach detection unit 13 may detect that the call terminal 10 is approaching the ATM device 20. In this case, the storage unit 12 does not need to store the ATM position information table.

  The time information acquisition unit 14 acquires time information from the OS of the call terminal 10 according to the control of the risk determination unit 16 and outputs the time information to the risk determination unit 16.

  The notification means 15 performs a notification for alerting that the risk of wire fraud is high. There are various methods for notifying the alert by the notification means 15.

  For example, when the call terminal 10 has a voice output function, the voice function, when the call terminal 10 has a display function, by display, and the vibration function that the call terminal 10 vibrates to notify the user 2 Can be notified to the user 2 by vibration. Further, the notification unit 15 may perform notification by combining sound, display, and vibration.

  Further, the notification unit 15 may cause the ATM device 20 to make a notification by voice when the call terminal 10 can control the ATM device 20 and the ATM device 20 has a voice output function. Further, the notification unit 15 may cause the ATM device 20 to notify by display when the ATM device 20 has a display function.

  In addition, the notification means 15 transmits an e-mail to another terminal registered in advance, so that the user of the other terminal (for example, when the user 2 is an elderly person, the user 2 Notification of alerting may be sent to the child).

  The risk determination unit 16 causes the time information acquisition unit 14 to acquire time information when notified from the proximity detection unit 13 that the approach of the call terminal 10 to the ATM device 20 has been detected. The notifying unit 15 then displays the date and time when the incoming date and time from the unregistered number stored in the storage unit 12 (unregistered number incoming date and time management table) is indicated in the time information acquired by the time information acquiring unit 14 (call terminal) 10 is determined to be included in a period (determination period) from a date and time when the approach to the ATM device 20 is detected) to a predetermined time before. If the incoming date and time from the stored unregistered number is included in the determination period, the risk determination unit 16 determines that the risk of wire fraud is high, and causes the notification unit 15 to notify the attention. .

  Next, the operation of the call terminal 10 according to this embodiment will be described.

  First, the operation of the incoming event acquisition unit 11 will be described with reference to the flowchart shown in FIG.

  The incoming event acquisition unit 11 inquires of the OS of the call terminal 10 and determines whether there is an incoming event (step S101).

  When it is determined that there is no incoming event (step S101: No), the incoming event acquisition unit 11 ends the process.

  If it is determined that there is an incoming event (step S101: Yes), the incoming event acquisition unit 11 acquires the incoming history from the OS of the call terminal 10. Then, the incoming event acquisition unit 11 determines whether or not there is an unregistered number in the acquired incoming call history (step S102).

  If it is determined that there is no unregistered number in the incoming call history (step S102: No), the incoming event acquisition unit 11 ends the process.

  If it is determined that there is an unregistered number in the incoming call history (step S102: Yes), the incoming event acquisition unit 11 sets the incoming date / time (incoming date and incoming date / time) from the unregistered number to the unregistered number incoming date / time. The data is stored in the management table (step S103), and the process ends.

  The incoming event acquisition unit 11 repeats the above processing at predetermined time intervals.

  Next, the operation of the call terminal 10 from the detection of the approach to the ATM device 20 to the notification will be described with reference to the flowchart shown in FIG. In FIG. 6, the approach detection unit 13 will be described using an example in which the approach of the call terminal 10 to the ATM device 20 is detected based on the position information.

  For example, the approach detection unit 13 acquires the position information of the call terminal 10 based on the GPS signal at predetermined time intervals (step S201).

  Next, the approach detection means 13 determines whether or not there is position information in the ATM position information table that matches the acquired position information of the call terminal 10 (step S202).

  If there is no position information that matches the position information of the call terminal 10 in the ATM position information table (step S202: No), the approach detection means 13 ends the process.

  When the ATM position information table includes position information that matches the position information of the call terminal 10 (step S202: Yes), the approach detection means 13 is in danger of detecting that the call terminal 10 has approached the ATM device 20. The sex determination means 16 is notified.

  Upon receiving the notification from the approach detection unit 13, the risk determination unit 16 causes the time information acquisition unit 14 to acquire time information (step 203).

  Next, the risk determination means 16 determines that the incoming date and time from the unregistered number stored in the unregistered number incoming date and time management table is the time indicated by the time information, that is, the approach of the call terminal 10 to the ATM device 20. It is determined whether it is included in a period (determination period) from the time of detection to a predetermined time before (step S204).

  When it is determined that the incoming date / time from the unregistered number stored in the unregistered number incoming date / time management table is not included in the determination period (step S204: No), the risk determination unit 16 ends the process. To do.

  If it is determined that the incoming date and time from the unregistered number stored in the unregistered number incoming date and time management table is included in the determination period (step S204: Yes), the risk determination means 16 sends the notification means 15 to the notification means 15. A notice of caution is given (step S205).

  As described above, the approach detection unit 13 may detect the approach of the call terminal 10 to the ATM device 20 based on the presence / absence of communication between the call terminal 10 and the ATM device 20. FIG. 7 is a flowchart showing the operation of the call terminal 10 when detecting the approach of the call terminal 10 to the ATM device 20 based on the presence / absence of communication between the call terminal 10 and the ATM device 20. In FIG. 7, the same processes as those in FIG.

  The ATM device 20 transmits a beacon signal at a predetermined time interval by a predetermined short-range communication method. When the call terminal 10 detects (receives) the beacon signal (step S301), the approach detection means 13 determines that the call terminal 10 is approaching the ATM device 20, and the approach of the call terminal 10 to the ATM device 20 occurs. Is notified to the danger determination means 16. Upon receiving the notification from the approach detection unit 13, the risk determination unit 16 proceeds to the process of step 203.

  Thus, according to the present embodiment, the call terminal 10 includes the storage unit 12 that stores the date and time of incoming call from the unregistered number, the approach detection unit 13 that detects the approach of the call terminal 10 to the ATM device 20, and the notification. When an approach to the means 15 and the ATM device 20 is detected, a period in which the incoming date / time from the unregistered number stored in the storage means 12 is a predetermined time before the approach to the ATM device 20 is detected. Is included in the risk determination means 16 for notifying the notification means 15.

  Usually, the telephone number of the telephone 4 of the transfer fraudster 3 is not registered in the call terminal 10 of the attack target person (user 2). In addition, the ATM device 20 is often used for withdrawing money or transferring money to an account, and the transfer fraudster 3 does not give time to think enough to the attack target person, and withdraw money or transfer money to an account. Often trying to do. Therefore, if there is an incoming call from an unregistered number and then the call terminal 10 (user 2) approaches the ATM device 20 within a predetermined period, it is considered that there is a high risk of a transfer fraud. Therefore, the date and time of incoming call from the unregistered number is stored, and if there is an incoming call from the unregistered number within a period from the time when the approach to the ATM device 20 is detected until a predetermined time, notification is made. In this way, it is possible to make a notice of alerting the transfer destination. In addition, since it is not necessary to determine all incoming calls from unregistered numbers, it is possible to make a notice of alerting the transfer destination with high accuracy. Moreover, since the third party does not intervene in the call, privacy infringement can be prevented.

  Moreover, in this embodiment, the memory | storage means 12 further memorize | stores the positional information on the ATM apparatus 20, and the approach detection means 13 acquires the positional information on the call terminal 10 based on a GPS signal, and of the acquired call terminal 10 is acquired. Based on the position information and the position information of the ATM device 20 stored in the storage unit 12, the approach to the ATM device 20 is detected. With such a configuration, the present invention can be applied without requiring special modification to the current ATM device 20.

  Further, in the present embodiment, the call terminal 10 can perform near field communication with the ATM device 20, and the approach detection unit 13 can approach the ATM device 20 depending on the presence / absence of communication between the call terminal 10 and the ATM device 20. Is detected. With such a configuration, it is possible to detect the approach between the call terminal 10 and the ATM device 20 even in a place where it is difficult to receive GPS signals.

  Moreover, in this embodiment, the notification means 15 notifies by the output of the sound or display from the call terminal 10, or the vibration of the call terminal 10. With such a configuration, the user 2 of the call terminal 10 can reliably notify the user.

  In the present embodiment, the notification unit 15 causes the ATM device 20 to output a sound or a display so as to perform notification. With such a configuration, not only the user 2 of the call terminal 10 but also a third party such as a bank employee who manages the ATM device 20 can be notified of a warning.

  Moreover, in this embodiment, a notification means notifies other terminals registered beforehand. With such a configuration, it is possible to notify the relatives and friends of the user 2 of the call terminal 10 of the alert.

The method performed in the call terminal 10 according to the present invention may be applied to a program for causing a computer to execute. In addition, the program can be stored in a storage medium and can be provided to the outside via a network.

  Although the present invention has been described based on the drawings and embodiments, it should be noted that those skilled in the art can easily make various variations or modifications based on the present disclosure. Therefore, it should be noted that these variations or modifications are included in the scope of the present invention. For example, functions included in each block or step can be rearranged so as not to be logically contradictory, and a plurality of blocks or steps can be combined into one or divided.

DESCRIPTION OF SYMBOLS 1 Transfer fraud prevention system 10 Call terminal 11 Incoming event acquisition means 12 Storage means 13 Approach detection means 14 Time information acquisition means 15 Notification means 16 Risk determination means 20 ATM apparatus

Claims (7)

A phone that can register a phone number,
Storage means for storing an incoming date and time from an unregistered number which is an incoming telephone number not registered in the call terminal;
Proximity detection means for detecting the proximity of the call terminal to the ATM device;
A notification means for notifying a reminder;
When the access to the ATM device is detected by the approach detection means, the incoming date and time from the unregistered number stored in the storage means until a predetermined time before the detection of the approach to the ATM device. A call terminal comprising: a determination unit that causes the notification unit to make a notification when it is included in the period. The call terminal according to claim 1, wherein
The storage means further stores position information of the ATM device,
The approach detection means acquires position information of the call terminal based on a GPS signal, and based on the acquired position information of the call terminal and position information of the ATM apparatus stored in the storage means, the ATM device A call terminal characterized by detecting an approach to the telephone. The call terminal according to claim 1, wherein
The call terminal is capable of near field communication with the ATM device,
The communication terminal according to claim 1, wherein the proximity detection means detects the proximity of the ATM device based on presence / absence of communication between the call terminal and the ATM device. In the telephone terminal according to any one of claims 1 to 3,
The communication terminal according to claim 1, wherein the notification means performs notification by output of sound or display from the call terminal or vibration of the call terminal. In the telephone terminal according to any one of claims 1 to 4,
The communication terminal according to claim 1, wherein the notification means causes the ATM device to output a sound or a display to make a notification. In the telephone terminal according to any one of claims 1 to 5,
The communication terminal according to claim 1, wherein the notification means notifies other terminals registered in advance. A method of controlling a call terminal that can register a phone number,
Storing an incoming date and time from an unregistered number that is an incoming phone number that is not registered in the call terminal;
Detecting the approach of the call terminal to the ATM device;
When the approach of the call terminal to the ATM device is detected, the incoming date and time from the stored unregistered number is included in a period from the time of detection of the approach to the ATM device to a predetermined time before Includes a step of notifying a reminder, and a method for controlling a communication terminal.

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