An electronic device (101, 201, 101-2) comprising: a sensor; a communication module (170, 220, 170-2) comprising communication circuitry; a processor (120, 210, 120-2) electrically connected to the sensor and the communication module (170, 220, 170-2); and a memory (130, 230, 130-2) electrically connected to the processor (120, 210, 120-2), wherein the memory (130, 230, 130-2) stores instructions that, when executed by the processor (120, 210, 120-2), cause the processor (120, 210, 120-2) to perform operations comprising: receiving, from an external electronic device (102, 104, 101-1), a signal requesting virtual biometric information configured to be used for authentication at the external electronic device (102, 104, 101-1), through the communication module (170, 220, 170-2); in response to receiving the signal requesting the virtual biometric information, displaying a screen requesting input of biometric information, acquiring, via the sensor, biometric information (492, 692, 694) of a user while displaying the screen requesting input of biometric information (492, 692, 694), identifying whether the biometric information (492, 692, 694) corresponds to a pre-stored biometric information, determining the virtual biometric information corresponding to the biometric information according to a result of the identification, and transmitting, via the communication module (170, 220, 170-2), the virtual biometric information to the external electronic device (102, 104, 101-1) for completing the authentication, wherein the biometric information (492, 692, 694) of the user is different from the virtual biometric information. a sensor; a communication module (170, 220, 170-2) comprising communication circuitry; a processor (120, 210, 120-2) electrically connected to the sensor and the communication module (170, 220, 170-2); and a memory (130, 230, 130-2) electrically connected to the processor (120, 210, 120-2), wherein the memory (130, 230, 130-2) stores instructions that, when executed by the processor (120, 210, 120-2), cause the processor (120, 210, 120-2) to perform operations comprising: receiving, from an external electronic device (102, 104, 101-1), a signal requesting virtual biometric information configured to be used for authentication at the external electronic device (102, 104, 101-1), through the communication module (170, 220, 170-2); in response to receiving the signal requesting the virtual biometric information, displaying a screen requesting input of biometric information, acquiring, via the sensor, biometric information (492, 692, 694) of a user while displaying the screen requesting input of biometric information (492, 692, 694), identifying whether the biometric information (492, 692, 694) corresponds to a pre-stored biometric information, determining the virtual biometric information corresponding to the biometric information according to a result of the identification, and transmitting, via the communication module (170, 220, 170-2), the virtual biometric information to the external electronic device (102, 104, 101-1) for completing the authentication, wherein the biometric information (492, 692, 694) of the user is different from the virtual biometric information. receiving, from an external electronic device (102, 104, 101-1), a signal requesting virtual biometric information configured to be used for authentication at the external electronic device (102, 104, 101-1), through the communication module (170, 220, 170-2); in response to receiving the signal requesting the virtual biometric information, displaying a screen requesting input of biometric information, acquiring, via the sensor, biometric information (492, 692, 694) of a user while displaying the screen requesting input of biometric information (492, 692, 694), identifying whether the biometric information (492, 692, 694) corresponds to a pre-stored biometric information, determining the virtual biometric information corresponding to the biometric information according to a result of the identification, and transmitting, via the communication module (170, 220, 170-2), the virtual biometric information to the external electronic device (102, 104, 101-1) for completing the authentication, wherein the biometric information (492, 692, 694) of the user is different from the virtual biometric information.